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packtpub.com

Our library of 7,000 Books, Videos and Courses as well as free Articles, Newsletters and Conferences let you advance your skills and career.

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English
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2003
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Website review

This review may include AI-generated content and is not individually verified. Domain, certificate and other facts come from the observed data on this page.

What is Packt?

Packt is a technology learning publisher and platform aimed at working developers, data professionals, and IT practitioners who want to build job-relevant skills. Its catalog spans books, videos, and courses, alongside free articles, newsletters, and conferences, so it works both as a structured study resource and as a reference library you dip into for a specific problem.

What you'll find there

  • Technical books on programming languages, machine learning, cloud, security, and data engineering — often practical, project-oriented titles rather than academic theory.
  • Video courses and courses for guided, step-by-step learning when reading alone isn't enough.
  • Free articles and newsletters for staying current without committing to a purchase.
  • Conferences and community content for practitioners who learn well from talks and peer discussion.

Who it suits

Reader Good fit because
Working developer upskilling on the job Topic depth and code-first books match real project needs
Career changer or student Structured courses give a path through unfamiliar subjects
Team lead or architect Broad catalog supports evaluating several technologies quickly
Casual learner Free articles and newsletters offer a low-commitment entry point

Trade-offs to weigh

Coverage is wide, which is an advantage for breadth but means quality and depth vary across titles — check the specific book or course rather than assuming a uniform standard. Access is partly subscription-based, with premium tiers and some free access options, so the value depends on how many titles you'll realistically use. If you only need one topic, buying a single title may make more sense than a recurring plan.

Next step: decide whether you want one targeted resource or ongoing access. Browse the catalog for the exact topic you need, sample the free articles to judge the writing style, then compare that experience against the subscription options before committing. If your interest is specifically machine learning, the widely used Python Machine Learning by Sebastian Raschka and Vahid Mirjalili is a representative example of the practical, code-driven approach the catalog favors.

How does Packt's subscription model work and what does it include?

Packt sells access to a large technical learning library rather than a single course. Its subscription tiers are the main way to get broad, continuing access: you pay for a recurring membership and can then read or watch material across the catalog instead of buying each title separately.

What a Packt subscription typically covers

  • Books and ebooks — practical, code-heavy titles on programming, data, cloud, security and related topics.
  • Videos — recorded courses and walkthroughs on the same subjects.
  • Courses — structured learning paths, often combining text and video.
  • Articles, newsletters and conference content — shorter updates and event material that supplement the longer formats.

Packt describes its library as thousands of books, videos and courses, so the value comes from breadth: you can move between topics and formats without a new purchase each time.

How the tiers differ

Packt presents more than one level of access, including a free-access option and a premium tier. The practical difference is usually how much of the catalog you can open and whether you get the newest or full range of titles. Because the exact entitlements and prices change, check the current plan pages before committing:

  • Packt subscription
  • Packt Premium

Who it suits

A developer preparing for a certification, a data scientist switching stacks, or a team that needs a shared reference library will get more from a subscription than from buying two or three books. If you only need one specific title, a one-off purchase is usually cheaper and simpler.

Next step: list the two or three skills you want to build in the next six months, then confirm that those exact titles or courses sit inside the tier you are considering — not just in the catalog as a whole.

Can I access Packt content for free or is there a trial?

Packt does not offer a general free tier for its full library, but it does provide some free access routes and a paid subscription model.

What you can get without paying

  • Free articles, newsletters and community content: Packt publishes free articles and newsletters alongside its paid catalog.
  • "Unlock Free Access": The site includes a free-access option, typically a limited selection of titles rather than the whole library.
  • Sample/preview material: Individual book pages usually let you look at previews before buying.

Paid options

  • Individual purchases: You can buy specific books, videos or courses outright instead of subscribing.
  • Subscription / Premium: Packt offers subscription access (including a Premium tier) that unlocks the broader library of books, videos and courses.

Is there a trial? The site signals a free-access option and subscription plans, but it does not clearly advertise a standard time-limited free trial of the full subscription. If a trial exists, it is usually promoted at signup rather than as a standing offer.

How to decide

  • If you want one specific title (for example, a machine learning book), buying it individually is often cheaper than subscribing.
  • If you plan to work through many titles over several months, a subscription usually makes more sense.
  • If you just want to evaluate quality, start with the free articles and a book preview, then check the subscription page for any current trial or promotional access.

Next step: Open the Packt subscription page at Packt and look for "free access" or trial wording before entering payment details; if none is shown, assume the full library requires payment.

What types of tech topics and formats does Packt cover?

Packt covers a broad range of practical, hands-on technology topics and delivers them across several formats, so you can pick the medium that fits how you learn.

H3 Topics you'll typically find

  • Programming languages and software development (Python, JavaScript, Java, C++, Go, Rust, and more)
  • Data science, machine learning, AI, and analytics
  • Web, mobile, and game development
  • Cloud, DevOps, containers, and infrastructure
  • Cybersecurity, networking, and systems administration
  • Databases, big data, and data engineering
  • Emerging areas such as blockchain and IoT

H3 Formats available

  • Books (print and eBook)
  • Video courses and tutorials
  • Interactive/online courses
  • Free articles, newsletters, and conference content

H3 Choosing a format

Format Best for Trade-off
Book/eBook Deep, structured learning and reference Slower to update than live content
Video course Visual learners who want guided walkthroughs Less convenient to search or skim
Interactive course Hands-on practice with feedback Often narrower in scope than a full book
Articles/newsletters Quick updates and specific fixes Not a complete curriculum

If you're deciding where to start, match the format to your goal: pick a book for a topic you want to master end-to-end, a video or interactive course when you need to build something quickly, and articles or newsletters to keep current. A practical next step is to browse the catalog by topic and skill level, then sample a free article or preview before committing to a longer resource.

How does Packt compare to other tech learning platforms like O'Reilly or Udemy?

Packt is best understood as a publisher-led learning library rather than a pure course marketplace. Its catalog spans books, videos, and courses, so it suits people who like to read deeply and keep reference material on hand, not just watch a series of lectures. The natural comparison set is O'Reilly for breadth of technical reference, and Udemy for cheap, one-off, instructor-made courses.

How the three typically differ:

Platform Core format Best for Main trade-off
Packt Books, videos, courses from one publisher Developers who want practical, project-oriented titles they can revisit Content is Packt's own, so you're limited to its editorial choices
O'Reilly Large reference library plus live training Broad, cross-vendor research and staying current across many topics Higher cost, and the volume can be overwhelming
Udemy Individual instructor courses A specific skill, fast, often at low cost per course Quality varies by instructor, and you buy course by course

The practical decision rule: if you want a structured library you can browse and re-read, Packt fits. If you need to survey many publishers and technologies for research, O'Reilly's breadth is the advantage. If you have one narrow goal and want the cheapest single path to it, Udemy is usually the pragmatic pick.

A concrete scenario: a developer preparing for a machine-learning role might use a Packt book such as Python Machine Learning as the spine, dip into Udemy for a focused course on a weak topic, and use O'Reilly to check how a technique is handled elsewhere. Next step: before subscribing to anything, list the three specific things you need to learn in the next quarter, then check which platform actually covers them rather than judging by catalog size.

How can I use Packt to advance my career or prepare for certifications?

Packt is best used as a structured self-study library rather than a certification bootcamp. Its catalog of books, videos and courses covers the tools and topics that appear on many technical certification exams and in job descriptions, so you can build knowledge in a chosen track and keep it current. The trade-off is that you supply the study plan and the hands-on practice; Packt supplies the material.

How to turn it into a career plan

  1. Pick one target: a certification (cloud, security, data, Linux) or a role (data engineer, backend developer, ML engineer).
  2. Find two or three Packt titles that match that target and work through them in order, oldest-to-newest or beginner-to-advanced.
  3. Pair each title with a small project — deploy the example, break it, fix it. Reading alone rarely survives an exam or an interview.
  4. Use the shorter videos and articles for gaps and refreshers rather than starting new tracks.
  5. Schedule a mock exam or a portfolio review every few weeks to test whether the study is working.

Who gets the most from it

Reader Good fit Watch out for
Self-directed learner with a clear goal Strong: huge range, one subscription covers many titles Needs discipline; no one assigns the work
Certification candidate Useful for background and depth Vendor exams often need official objectives and practice tests too
Developer upskilling on the job Practical, project-oriented titles Verify a title's edition is current for your stack
Complete beginner Can work if you start with introductory titles Easy to buy breadth and finish nothing

A concrete scenario

Suppose you want to move into cloud data engineering. Search for titles on SQL, Python data pipelines and a major cloud platform, read one end to end, then rebuild its pipeline with your own dataset. Add a short course on the certification's specific services, sit a practice exam, and note weak areas — then return to the relevant chapters. That loop, not the purchase itself, is what moves a career.

Next step

Check the subscription options and confirm they include the formats you actually use, then commit to one track for 60–90 days before adding another. Browse the catalog at Packt and treat it as your reference shelf, with official certification guides and hands-on labs as complements.

Related questions

More questions →
What is Packt and what can you find on packtpub.com?

Packt is a technology learning platform for people who want to advance their technical skills and careers. On packtpub.com you can find a library of roughly 7,000 books, videos, and courses, plus free articles, newsletters, and conferences. It suits developers, data professionals, and other technical learners who want structured, career-oriented material — for example, someone working through Python Machine Learning by Sebastian Raschka and Vahid Mirjalili to build practical machine learning skills.

What Packt offers

The platform organizes its content into a few main formats:

  • Books — technical titles across programming, data, cloud, security, and related fields.
  • Videos — watchable instruction for learners who prefer demonstration over reading.
  • Courses — structured learning paths that combine topics into a progression.
  • Free articles and newsletters — shorter material you can read without committing to a full title.
  • Conferences — events connected to the wider Packt learning ecosystem.

The stated purpose is to help you advance your skills and career, so the catalog leans toward applied, job-relevant technology topics rather than general-interest reading.

Topics you'll find

Packt's catalog spans a broad range of technical subjects. One concrete example from the site is Python Machine Learning, which signals strength in Python and machine learning. More generally, expect coverage of programming languages, data science and AI, web and software development, cloud and infrastructure, and security — the areas technical professionals typically need to keep current in.

Who it's for

Packt fits you if:

  • You're a developer, engineer, data scientist, or IT professional.
  • You want to learn a specific technology or deepen existing skills.
  • You prefer books and video courses over ad-hoc tutorials.
  • You're building toward a career goal rather than browsing casually.

It's less suited to someone looking for academic credentials or a single free tutorial — the value is in the breadth of the library and the structured formats.

Access and pricing

Packt offers subscription options, including a Subscription and Packt Premium, along with a free-access entry point. Because plans and what each tier includes can change, check the current subscription pages on packtpub.com for exact terms, pricing, and what's included before committing.

How Do Online Master's Courses in Europe Work?

Online master's courses in Europe are generally structured the same way as on-campus degrees: you complete a set number of credits (usually 60–120 ECTS), pass assessments, and receive the same degree title as campus students at that institution. What changes is the delivery mode. Programs range from fully online and asynchronous to hybrid formats that require short residencies, and recognition depends far more on the institution's accreditation than on whether you studied from home or on campus.

The main formats you'll encounter

Fully online, asynchronous

All coursework, lectures, and materials are delivered through a learning platform. You study on your own schedule within weekly or module deadlines. This is the most flexible option and the most common for working professionals.

Fully online, synchronous

You attend live seminars and lectures at fixed times, often via video conferencing. This mimics a campus timetable and works well for discussion-heavy subjects, but it requires you to be available in the institution's time zone.

Hybrid or blended

Most study is online, but you attend one or more short on-campus periods — typically a kick-off week, a lab-intensive block, or a final thesis defense. Some programs in fields like engineering, health, or business use this to cover practical components.

Online with optional campus tracks

A smaller number of programs let you switch between online and on-campus modules, or complete the degree online but attend electives in person.

Credits, ECTS, and what the degree is worth

European master's programs use the ECTS system:

Program type Typical credits Typical duration (full-time)
Taught master's (MA, MSc, LLM) 60–120 ECTS 1–2 years
MBA 60–90 ECTS 1–2 years
Research master's (MPhil, MRes) 120 ECTS 2 years

One ECTS credit represents roughly 25–30 hours of total student workload, including self-study. A 90-ECTS online master's therefore carries the same academic weight as a 90-ECTS on-campus master's at the same institution.

The key question is not "online or not" but who accredits the program. In most European countries, the national quality assurance agency or the state recognizes degrees from accredited institutions regardless of delivery mode. If you need the degree for a regulated profession, a visa, or a public-sector job, verify recognition with the relevant authority in your own country before enrolling — this is a general rule, not legal advice for your situation.

Admission requirements for international applicants

Requirements vary by country and institution, but online master's programs commonly ask for:

  • A completed bachelor's degree (or equivalent) in a relevant field.
  • A minimum grade or GPA, sometimes expressed as a class of degree.
  • English proficiency — IELTS, TOEFL, or an equivalent, unless your previous degree was taught in English. Some programs accept a waiver or an internal test.
  • A motivation letter or statement of purpose.
  • A CV, especially for MBA and executive programs.
  • Letters of recommendation (often 1–2).
  • Work experience for MBA and some professional master's degrees.
  • Specific prerequisites such as statistics, programming, or a portfolio for design and technical fields.

Typical application steps

  1. Shortlist 3–5 programs and check each one's accreditation and recognition in your country.
  2. Confirm the language of instruction and whether your proficiency test meets the threshold.
  3. Prepare documents early — transcripts, translations, and credential evaluations can take weeks.
  4. Check application deadlines; many European programs have rolling admissions, but some have fixed intakes.
  5. Submit the application and any application fee.
  6. If admitted, complete enrollment, pay any deposit, and set up your student account and platform access.

How exams, thesis work, and support are handled remotely

  • Assessment: written assignments, online proctored or open-book exams, group projects, presentations, and participation. Some programs use timed take-home exams instead of invigilated ones.
  • Thesis or capstone: usually supervised remotely via video calls and email, with milestones and a final written submission. Some institutions require an oral defense by video; a few require it on campus.
  • Support: academic advisors, library access (often digital), technical helpdesk, and career services. Quality varies widely, so ask current students or check program pages for what is actually provided.
  • Interaction: discussion forums, cohort groups, and live sessions. Asynchronous programs can feel isolating if you don't build in regular contact.

Practical considerations before you commit

  • Time zones: synchronous programs may schedule classes in the institution's local time. Check whether live sessions fall at workable hours for you.
  • Language of instruction: many European master's programs are taught in English, but not all. Confirm the language for lectures, exams, and thesis supervision.
  • Tuition structure: online programs are often priced per credit or per year, and may differ from on-campus rates. Public universities in some countries charge modest fees; private and executive programs cost more. Ask for a full breakdown of tuition, platform fees, and any residency costs.
  • Recognition and mobility: if you plan to work in a regulated profession or apply for a visa, confirm in advance that the specific degree is accepted where you intend to use it.
  • Time commitment: expect 15–20 hours per week for a full-time online master's, or roughly half that for part-time study.

Online vs. on-campus: a quick comparison

Factor Online On-campus
Flexibility High; study around work Fixed timetable
Networking Digital, sometimes weaker In-person, stronger
Cost Often lower tuition, no relocation Tuition plus living costs
Practical/lab work Limited or via short residencies Full access
Recognition Depends on accreditation, not mode Depends on accreditation
Campus experience Minimal Full

A simple decision checklist

  1. Is the program accredited and recognized in the country where you plan to use the degree?
  2. Does the format (async, sync, hybrid) fit your schedule and time zone?
  3. Are the language requirements realistic for you?
  4. Can you meet the prerequisites and admission documents?
  5. Does the total cost — tuition plus any residency travel — fit your budget?
  6. Does the program offer the support you'll need to finish a thesis remotely?

If you can answer yes to all six, an online master's from a European institution is a credible route to the same degree title as campus study. If any answer is uncertain, resolve that point before you apply rather than after you enroll.

Does Packt Offer a Subscription, and What Is Packt Premium?

Yes. Packt's site includes a dedicated Subscription entry and a separate "Packt Premium" access page, so subscription-based access is part of how the platform is structured. The site also shows a distinct "Unlock Free Access" option, which means free and paid access are presented as separate paths rather than one and the same. What each tier actually includes — and what it costs — is not specified in the available site information, so the subscription and Premium pages are the places to confirm current terms before committing.

What the site signals

The homepage navigation and banners point to several access-related destinations:

Entry point What it suggests
Subscription A recurring paid access plan exists
Packt Premium A named higher-tier or premium access level
Unlock Free Access A free access route exists alongside paid options
Checkout Purchases or plan sign-ups are completed through a checkout flow

The presence of both a "Subscription" link and a "Packt Premium" link indicates these are treated as related but distinct concepts on the site. The exact relationship between them — whether Premium is the name of the subscription, a higher tier, or a separate product — is not stated in the available information.

Subscription vs. free access

The key distinction the site makes is between paid subscription access and a free access option:

  • Subscription / Packt Premium: presented as the paid route, associated with "premium" content signals.
  • Unlock Free Access: a separate entry point, implying some content or access is available without a paid plan.

Because pricing keywords on the site include "subscription" and "premium," it is reasonable to treat the paid plans as the primary commercial offering, with free access as a limited or alternative entry. The scope of the free access — how much content it covers, whether it expires, or what it requires — is not described in the available material.

What is not confirmed

The available information does not specify:

  • The price of any subscription or Premium plan
  • The full list of benefits included in each tier
  • Whether free access requires registration or is time-limited
  • Whether Premium and Subscription are the same plan or different ones

These details matter for a purchase decision, so they should be checked directly on the subscription and Premium pages rather than assumed.

How to decide

  1. If you want ongoing access to a broad library, start with the Subscription and Packt Premium pages to compare what each includes.
  2. If you want to test the platform first, look at the Unlock Free Access option to see what is available without paying.
  3. Before subscribing, confirm the current benefits, any renewal terms, and the price on the checkout page, since these are the details most likely to change.

Packt describes its library as 7,000 books, videos, and courses, plus free articles, newsletters, and conferences. If your goal is sustained access to that library, the subscription route is the relevant one to evaluate; if you only need occasional or introductory material, the free access entry is the logical starting point.

Can I Find Python Machine Learning Books on Packt?

Yes. Packt (packtpub.com) publishes technical books and learning resources, and Python machine learning is one of the subject areas it covers. A well-known example is Python Machine Learning by Sebastian Raschka and Vahid Mirjalili, which is listed on the site. You can find this kind of content by searching the site or browsing its catalog, and titles may be available as books, videos, or courses depending on the item.

What you can find on Packt

Packt describes its library as containing 7,000 books, videos, and courses, plus free articles, newsletters, and conferences. For a Python machine learning search, that means you may encounter:

  • Books — including titles such as Python Machine Learning by Sebastian Raschka and Vahid Mirjalili.
  • Videos — recorded learning content on related topics.
  • Courses — structured learning material.
  • Free articles and newsletters — supplementary reading that doesn't require buying a title.

The exact format available depends on the individual title, so check the item page rather than assuming every topic comes in every format.

How to find Python machine learning content

  1. Go to packtpub.com.
  2. Use the site search for terms like "Python machine learning" or a specific title or author.
  3. Alternatively, browse the catalog by category to see related titles.
  4. Open a specific title's page to check the author, table of contents, edition, and available format before deciding.

The expected result is a list of matching items; from there, the title page gives you the detail needed to judge whether it fits your level and goals.

Access and pricing

Packt's site includes subscription and premium options — links labeled "Subscription," "Packt Premium," and "Unlock Free Access" appear on the site, along with a checkout page. Because access terms and pricing can change, check the current subscription and title pages directly for what's included and what a specific book or course costs. The presence of a free-access option does not mean all content is free; confirm per item.

Choosing between formats

If you want… Consider…
Depth and reference material A book, checking edition and contents
Follow-along learning A video or course
To sample before committing Free articles, newsletters, or a free-access option

Match the format to how you learn and how much time you have, then verify the specific title's page for author, contents, and version.

Does Packt Provide Free Articles, Newsletters, or Conferences?

Yes. Packt's own site description states that its library includes "free Articles, Newsletters and Conferences" alongside its 7,000+ books, videos, and courses. So if you want to sample Packt's technical content before paying for anything, those three free channels are the intended entry points. The paid side is separate: Packt also runs a Subscription and a "Packt Premium" tier, and there is a distinct "Unlock Free Access" link on the homepage, which suggests free access is a defined offering rather than just marketing copy.

What Packt says it offers for free

The site's self-description lists three free resource types:

  • Articles — written technical content, useful for reading up on a topic without buying a book.
  • Newsletters — recurring updates, typically used to follow new releases and technical news.
  • Conferences — events Packt runs or participates in, which you can attend or follow for industry context.

These sit alongside the paid library of books, videos, and courses. The framing in Packt's description is that the free material exists to "advance your skills and career" — i.e., it's positioned as a legitimate learning resource, not a teaser-only sample.

Free vs. paid: what each is for

Channel Cost signal Best used for
Articles Listed as free Quick topic research, checking an author's style before buying
Newsletters Listed as free Staying current on new titles and technical news
Conferences Listed as free Broader industry context, talks, networking
Books / Videos / Courses Part of the 7,000-item library; subscription and premium tiers exist Structured, deep learning paths
"Unlock Free Access" Separate homepage link A defined free-access route into some content

The table reflects what the site states. It does not specify how much of the paid library free access unlocks, so treat "Unlock Free Access" as a distinct thing to check on its own page rather than assuming it covers everything.

How to actually get to these resources

  1. Go to packtpub.com.
  2. Look for the free-content areas — articles, newsletters, and conference information are described as part of the site's offering, so they're reachable from the main navigation or homepage.
  3. If you want to test paid content without committing, use the "Unlock Free Access" link on the homepage (packtpub.com/subscribe-free-access) rather than the Subscription or Premium links.
  4. For paid tiers, the relevant pages are packtpub.com/en-us/subscribe (Subscription) and packtpub.com/en-us/subscribe-premium-access (Packt Premium). Checkout is at packtpub.com/checkout.

Expected result: steps 2–3 give you free material; steps 3–4 are where you'd evaluate whether to pay. The site does not publish prices in the material available here, so confirm cost and what each tier includes on those pages before signing up.

A practical way to combine free and paid

Use the free layer as a filter. Read an article or two on a topic, follow the newsletter for a few weeks to see what Packt publishes in your area, and check whether a conference talk matches your interests. If the free material consistently fits how you learn, then evaluate the Subscription or Premium tier against the specific books and courses you'd actually use. If it doesn't, you've spent nothing.

One caveat worth stating plainly: the free resources are described at a category level. The site material here doesn't list individual article titles, newsletter names, or conference schedules, so the exact inventory is something you'll need to browse directly on packtpub.com.

Website Overview

An established domain and managed infrastructure suggest continuity of operations and may support dependable delivery, although neither guarantees service quality.

Domain and Registration

Registered in 2003, this domain has about 23 years of history. That suggests continuity, although ownership and purpose may have changed. Transfer-protection status is present, helping reduce the risk of unauthorized domain transfers. The domain uses the common .com extension, which is not an independent safety signal.

DNS and Email

Nameservers are provided by Cloudflare, indicating managed DNS hosting. MX records point to the Microsoft 365 email service. DNSSEC is enabled, allowing validating resolvers to authenticate signed DNS data. CAA records restrict which certificate authorities are authorized to issue certificates. No CNAME was found; the observed records resolve directly to addresses.

TLS and Certificates

The public key uses EC with 256 bits. The server supplied a complete certificate chain. No organization name is present in the certificate; the available fields are consistent with domain validation. The certificate was issued by Let's Encrypt, commonly associated with automated certificate services. The certificate's total validity is about 89 days, consistent with a short renewal cycle.

HTTP and Browser Security

The response lacks these common security headers: CSP, Referrer-Policy, Permissions-Policy. No X-Powered-By header was found, reducing one common source of backend fingerprinting information. The cf-ray response header indicates a CDN or caching proxy in the delivery path. No obvious internal addresses or debug information were found in the headers. The Server header identifies cloudflare without an exact version.

Technology Stack Analysis

The public page identifies Cloudflare without precise versions, leaving fewer clues for version-specific scanning.

Search and Social Sharing

Unknown

Hosting and Email

DNSCloudflare
HostingCloudflare
EmailMicrosoft 365
Approximate IP geolocation (inferred; a CDN or proxy may differ from the origin server) United States flagUnited States Inferred 2606:4700::6812:1239

Registration details

RDAP / WHOIS

RegistrarAmazon Registrar, Inc.
Registered2003-05-09
Expires2027-05-09
Domain statusclient transfer prohibited
Nameserverseva.ns.cloudflare.com、max.ns.cloudflare.com
DNSSECsigned

DNS records

DNS

TypeNameValueTTLPriority
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CAApacktpub.com0 issuewild "amazonaws.com"300—
CAApacktpub.com0 issuewild "amazontrust.com"300—
CAApacktpub.com0 issuewild "awstrust.com"300—
CAApacktpub.com0 issuewild "letsencrypt.org"300—
DSpacktpub.com2371 13 2 164829d1f36a57b64307e6d78110a347e2993f1717db63e31d682bac8723a85786400—
DMARC_dmarc.packtpub.comv=DMARC1; p=quarantine; rua=mailto:[email protected],mailto:[email protected]; ruf=mailto:[email protected]; sp=quarantine300—

TLS and certificates

TLS / SSL

AssessmentNormal configuration
Supported protocolsTLSv1.2、TLSv1.3
Negotiated protocolTLSv1.3
Certificate subjectpacktpub.com
IssuerLet's Encrypt
Valid until2026-11-07T02:30 · Remaining when checked: 40 days
Verification detailsCertificate trust: Passed · Hostname match: Passed

HTTP response headers

HTTP

HeaderValue
content-typetext/html; charset=UTF-8
cache-controlno-cache, private
servercloudflare
strict-transport-securitymax-age=31536000; includeSubDomains; preload
x-frame-optionsSAMEORIGIN
x-content-type-optionsnosniff
set-cookieRedacted

Identified technologies

Cloudflare

Pages, Search and Sharing

Meta descriptionNot detected
Canonical URLNot detected
LanguageEnglish (default)
Twitter CardNot detected

Unknown

Unknown

No sitemaps found

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