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smartersudoku.com

Smarter Sudoku brings daily online Sudoku puzzles for free. You can solve the games on your mobile phone, tablet or computer. The site provides hints, offers handy tools to make solving easy, and explains the strategy.

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What is Smarter Sudoku?

Smarter Sudoku is a free online Sudoku site built around daily puzzles you solve in the browser. It is aimed at casual solvers who want a quick puzzle on a phone, tablet or computer without installing an app, and it supports that with hints, solving tools and explanations of strategy.

Its main draw is the combination of a daily puzzle habit with help when you get stuck. Rather than only presenting a grid and a timer, it treats Sudoku as something you can learn: hints and strategy explanations sit alongside the puzzle, so a beginner can finish a board and pick up techniques along the way.

Who it suits

  • Casual players who want one or a few puzzles a day without creating an account or downloading anything.
  • Beginners who need hints and plain-language strategy rather than a bare grid.
  • People who solve on whatever device is at hand, since it works on mobile, tablet and desktop.

Trade-offs to expect

  • If you want long, tournament-style sessions, deep statistics or advanced variant puzzles, a daily-puzzle site may feel limited.
  • Built-in hints and tools can become a crutch; if your goal is to improve, try solving without them first and use them only to unblock a specific step.

A practical next step: open today's puzzle and attempt it without hints, noting where you stall. Then read the strategy explanation for that situation and re-solve a similar board, which turns the hint from an answer into a lesson. For a second daily puzzle habit, you can compare with Sudoku.com.

How do I solve the daily Sudoku puzzle on Smarter Sudoku?

Open Smarter Sudoku and start the daily puzzle directly in your browser—it runs on phone, tablet or computer, so no app or account is needed. Fill the grid so every row, column and 3×3 box contains each digit once. If you get stuck, the site provides hints, built-in solving tools and strategy explanations, so you can either nudge yourself forward or learn the technique behind the next move.

A practical first run

  • Start with the givens: scan each row, column and box for digits that appear once, and place the missing digit where it fits.
  • Use pencil marks for candidates when a cell has two or three options, then look for a digit that can only go in one spot within a row, column or box.
  • Take a hint only after you've identified why you're stuck, so the explanation teaches a pattern rather than just filling a square.
  • If you're new, work through the strategy pages before enabling the easier tools; if you're experienced, treat hints as a check on your own logic.

Choosing how much help to use

Situation Sensible approach
Learning the rules Use hints and read the strategy notes alongside the puzzle
Practising a technique Solve unaided, then compare with the site's explanation
Short on time Use the tools to finish, and revisit the logic later

The trade-off is simple: more assistance means a faster finish but less practice at spotting patterns. A good middle ground is to solve each puzzle unaided until you've made a mistake or stalled, then use one hint and note the technique it demonstrates.

Next step: open today's puzzle, solve the first few cells without help, and keep a short note of the technique that unblocks you—over a week, that list becomes your own solving checklist.

What hints and tools does Smarter Sudoku offer to help solve puzzles?

Smarter Sudoku provides built-in hints and solving tools alongside its daily puzzles, so you are not left stuck with a grid you cannot finish. The site's own description states that it offers hints, handy tools to make solving easier, and explanations of strategy. That combination means help is available both at the moment you get stuck and when you want to understand why a move works.

H3 Practical help versus learning help

  • In-puzzle assistance: hints for when you need a nudge on the current grid.
  • Solving tools: utilities that reduce manual busywork so you can focus on logic.
  • Strategy explanations: written guidance on techniques, useful if you want to improve rather than just complete today's puzzle.

H3 Who gets the most from this

A casual solver who plays on a phone during a commute benefits most from quick hints and tools. A learner who wants to progress from easy to harder puzzles benefits more from the strategy explanations, because they turn a stuck moment into a lesson. If you only ever want a bare grid with no assistance, these features are optional rather than essential.

A useful next step: open today's puzzle, attempt it without help, and note the first technique you cannot apply. Then check the strategy section for that specific technique rather than revealing a hint immediately, and use hints only as a fallback. That sequence builds skill faster than hinting your way through.

For comparison, other established puzzle sites take different approaches to assistance: Sudoku.com and Web Sudoku are long-running alternatives if you want to see how their hint and difficulty options differ.

Can I play Smarter Sudoku on my mobile phone or tablet?

Yes. Smarter Sudoku is built for phones, tablets and computers, so you can solve the daily puzzles in a mobile browser without installing an app.

What that means in practice

  • Phone: good for a quick daily solve on a commute or lunch break; tapping cells is straightforward, though dense grids can feel cramped on a small screen.
  • Tablet: the most comfortable touch option — a larger grid makes it easier to avoid mis-taps and to see pencil marks.
  • Computer: best if you like keyboard entry or want the puzzle open beside notes or a strategy guide.

Trade-offs to expect

Device Strength Watch out for
Phone Always with you; quick sessions Smaller cells, more zooming
Tablet Room for notes and pencil marks Less convenient one-handed
Computer Fastest input for some solvers Not portable

The site also provides hints, solving tools and strategy explanations, which matter more on a phone: if you get stuck, hints let you keep a short session moving instead of abandoning the puzzle.

Next step: open Smarter Sudoku on your phone, start the daily puzzle, and try the hint and note tools once before deciding whether you prefer solving on a tablet. If you regularly solve for more than ten minutes at a time, the tablet or computer layout will likely suit you better.

What Sudoku strategies does Smarter Sudoku explain?

Smarter Sudoku explains Sudoku strategy as part of its puzzle-solving experience, alongside daily online puzzles, hints and handy solving tools. In other words, the site does not just hand you a grid and a timer; it treats technique as something you pick up while you play.

What that means in practice

  • Hints and tools: The site provides hints and tools intended to make solving easier. These are most useful when you are stuck mid-puzzle rather than when you want a full walkthrough from the start.
  • Strategy explanation: Strategy is explained on the site, so you can learn the reasoning behind moves instead of only copying an answer. That suits players who want to improve, not just finish today's grid.
  • Where to start: If you are new, begin with an easier daily puzzle and use a hint only after you have scanned every row, column and box yourself. If you already solve comfortably, use the strategy material to replace guessing with deliberate techniques.

How to judge whether it fits you

Your situation What to use first Trade-off
New to Sudoku Easy puzzle plus hints and strategy notes You may lean on hints too early and slow your own progress
Occasional solver Daily puzzle with tools when stuck Less structured than a dedicated course
Experienced solver Strategy explanations to refine technique You may want harder variants the site does not emphasise

A concrete next step: open today's puzzle, work for a few minutes without assistance, then read one strategy explanation and apply it to the exact spot where you stalled. That turns the site's hints and tools into a learning loop rather than a crutch.

For broader technique references, you can also compare with Sudoku.com or Web Sudoku, which are well-known Sudoku destinations.

Is Smarter Sudoku free to use?

Yes. Smarter Sudoku is free to use: its own description says it offers daily online Sudoku puzzles for free, playable on phone, tablet or computer, with hints, solving tools and strategy explanations included.

What that means in practice

  • You can solve the daily puzzle without paying, and the site describes hints and helper tools as part of the package rather than extras.
  • Because it runs in the browser, there is nothing to install — useful if you play a few minutes at a time on a commute or during a break.
  • Free access usually comes with the trade-offs typical of ad-supported puzzle sites: on-screen advertising, and puzzles that are consumed one day at a time rather than a large archive you can browse at will.

A useful next step

Open the day's puzzle and try it once with the built-in hints and once without. If the hint system explains the logic rather than simply filling a cell, it doubles as a learning tool; if you want a large back catalogue or offline play, a dedicated app may suit you better.

Related questions

More questions →
Can You Play Smarter Sudoku on Mobile, Tablet, and Computer?

Yes. Smarter Sudoku states that its daily puzzles can be solved on a mobile phone, tablet, or computer, so you can use whichever device you already have. The site describes itself as browser-based online Sudoku — no separate app is mentioned — and the same daily puzzle, hints, and solving tools are presented across devices. The main practical difference is screen size and input method, not puzzle availability.

What the site says about device support

Smarter Sudoku's own description is explicit: it "brings daily online Sudoku puzzles for free" and "you can solve the games on your mobile phone, tablet or computer." That single sentence covers the three device categories, and it also tells you the delivery method — you play online rather than installing something.

Two things follow from that:

  • No app store step. Because the site describes online play and names no app, the expected route is opening the site in a browser. You don't need to check whether an iOS or Android build exists before starting.
  • One puzzle set, not three. The daily puzzle is the daily puzzle. Switching from phone to laptop mid-solve doesn't give you a different grid; it gives you the same one on a different screen.

How the experience differs by device

The puzzle logic doesn't change, but how you enter digits and read the grid does.

Device Input method Screen fit Best suited to
Mobile phone Tap (on-screen) Smallest; grid plus tools compete for space Short sessions, solving on the move
Tablet Tap (on-screen) Comfortable grid with room for tools Longer sessions, casual solving on a couch
Computer Mouse and keyboard Largest; grid and tools can sit side by side Focused solving, note-taking, longer puzzles

The trade-off is straightforward. A phone is the most available device but the least roomy — a 9×9 grid plus hint controls and any notes area is a lot to fit on a small screen, and mis-taps are easier. A computer gives you the most space and the most precise input, which matters most on harder puzzles where you're tracking candidates. A tablet sits between the two and is often the most pleasant for casual daily solving.

What stays the same across devices

According to the site, the following are part of the offering regardless of what you're solving on:

  • Daily puzzles — the core content, published for online solving.
  • Hints — available when you get stuck.
  • Handy tools — described as features that make solving easier.
  • Strategy explanations — the site explains Sudoku strategy rather than only supplying grids.

So if you're choosing a device, you're choosing comfort, not features. Nothing in the site's description suggests that hints or tools are limited to one platform.

Practical considerations before you pick a device

A few things are worth deciding in advance, because they affect how smoothly a session goes:

  1. Where you'll keep notes. On a computer you can keep a separate notes window open beside the puzzle. On a phone you can't, so you rely on the site's own tools or on memory.
  2. How long your sessions run. A quick daily solve works fine on a phone. A long, difficult grid is easier on a larger screen where you can see more of the board at once.
  3. Whether you switch mid-solve. Since it's the same daily puzzle, moving from phone to computer is a change of screen, not a restart of the puzzle itself — but check whether your progress carries over before you close a tab mid-solve.
  4. Input precision. Tap targets on a small screen are the most common source of accidental entries. If you notice wrong digits appearing, that's usually the cause rather than a puzzle error.

Bottom line

You can play Smarter Sudoku on mobile, tablet, or computer — the site says so directly, and it presents the puzzles as online rather than app-based. Pick the phone for convenience, the tablet for a comfortable middle ground, and the computer when you want maximum space and precise input. The daily puzzle, hints, tools, and strategy explanations are described as part of the same offering, so your device choice affects comfort, not access.

What Sudoku Strategy Does Smarter Sudoku Explain?

Smarter Sudoku pairs its daily online puzzles with strategy explanations, hints, and solving tools, so the site is meant to work as both a place to play and a place to learn. According to the site's own description, it "explains the strategy" while offering hints and "handy tools to make solving easy." That combination is the main reason to use it over a bare puzzle grid: you can attempt the daily Sudoku, then lean on the explanations when you get stuck. The strategy material is aimed at helping players improve rather than just finish today's board.

How the strategy content fits with the daily puzzles

The site's stated purpose is to bring daily online Sudoku puzzles that you can solve on a phone, tablet, or computer. Strategy is presented alongside that puzzle flow, not as a separate course you have to seek out first. In practice this means the explanations are there to support the puzzle you are currently working on, so the learning happens in context.

A useful way to think about it:

  • Play first. Open the daily puzzle and solve as far as you can on your own.
  • Use hints when stuck. The site provides hints, which act as a bridge between "I don't see it" and "now I understand why."
  • Read the strategy. The explanations tell you the reasoning behind a move, so the same situation is easier to recognize next time.

This order matters. If you read strategy without a puzzle in front of you, the techniques stay abstract. If you only use hints without reading the reasoning, you finish the board but don't improve.

What "strategy" covers in a Sudoku context

Sudoku strategy generally runs from simple scanning to more advanced pattern recognition. The site describes its content as explaining strategy and offering tools to make solving easy, which points to a range that supports both beginners and players who want to go faster.

Typical techniques you would expect this kind of material to cover include:

Level Technique What it does
Basic Scanning rows, columns, and boxes Finds cells where only one number fits
Basic Naked and hidden singles Spots a digit that can only go in one place
Intermediate Pairs and pointing Eliminates candidates using two-cell relationships
Advanced More complex eliminations Narrows candidates when singles run out

The exact set of techniques the site explains is best confirmed by reading its strategy pages directly, since the description confirms strategy is explained but does not list every technique.

Where to find the strategy material

The strategy explanations live on the same site as the puzzles, so you reach them from the main Smarter Sudoku pages rather than a separate domain. The most reliable path is to start from the daily puzzle and follow the site's own links to its hints, tools, and strategy sections. Because the site is built for mobile, tablet, and computer, the same material is available whichever device you solve on.

Who this is for

Smarter Sudoku's strategy content suits you if:

  • You want daily puzzles and learning in one place, without switching sites.
  • You are a beginner who needs the reasoning behind moves, not just the answer.
  • You are an intermediate player who wants hints and tools to speed up solving.

It is less suited to you if you only want a bare grid with no explanations, or if you are looking for a structured, graded course that tracks your progress over time — the site's description points to puzzle-adjacent strategy help, not a formal curriculum.

The practical takeaway: treat the daily puzzle as the exercise and the strategy explanations as the lesson. Solve, get stuck, take a hint, then read why the move works. That loop is what turns a daily habit into actual improvement.

What Hints and Solving Tools Does Smarter Sudoku Offer?

Smarter Sudoku is a free online Sudoku site that publishes daily puzzles you can solve in a browser on a phone, tablet, or computer. Its stated purpose is to help you finish those puzzles: the site provides hints, offers handy tools to make solving easier, and explains the strategy behind the game. If you want assistance without simply being handed the answer, the hints and tools are the features to look for once you have a puzzle open.

What the hints feature is for

The hints feature exists for the moment you are stuck. Rather than leaving you to guess or abandon a puzzle, it gives you a way to get unstuck while staying in the same solving session.

The site describes hints as part of its core offering alongside the tools and strategy explanations, so treat hints as the in-puzzle assist and the strategy material as the slower, learning-oriented path. If you want to improve rather than just finish, the two are meant to work together.

What the "handy tools" are meant to make easier

The site's own description groups the tools under one goal: making solving easy. In practice, that means reducing the manual bookkeeping that makes Sudoku tedious — tracking candidates, scanning rows and columns, and re-checking what you have already ruled out.

Because the site does not itemize each tool in the available description, the honest answer is that the tools are presented as a set of conveniences rather than a named list. What you can rely on is the intent: they support the act of solving instead of replacing it.

How hints and tools support solving rather than giving away answers

This is the key distinction if you are choosing where to play. A site that just reveals cells turns Sudoku into copying. Smarter Sudoku frames its assistance differently:

  • Hints are positioned as help when you are stuck, not as an auto-solve.
  • Tools are positioned as making the solving process easier, which implies they assist your own deductions.
  • Strategy explanations are offered separately, which only makes sense if the goal is for you to understand the reasoning yourself.

For a solver who wants to learn, that combination is more useful than a pure answer key. For a solver who wants zero assistance, the same features are simply optional.

How to access these features during a puzzle

The site describes the experience as solving directly online, on mobile, tablet, or computer, with hints and tools available as part of that experience. The practical sequence is:

  1. Open a daily puzzle on smartersudoku.com in your browser.
  2. Start solving normally.
  3. When you stall, use the hint option instead of guessing.
  4. Use the solving tools to cut down on manual candidate tracking.
  5. If you want to understand why a move works, read the strategy explanations rather than only taking the hint.

Expected result: you keep making progress on the same puzzle without leaving the page or restarting.

Common sticking points

  • Assuming hints equal answers. The site's framing is assistance and strategy, so expect guidance rather than a filled grid.
  • Skipping the strategy section. If you only ever take hints, you will finish puzzles but not get faster. The explanations are there for the second goal.
  • Device expectations. The site states phone, tablet, and computer support, so there is no need to hunt for a separate app to get the tools.

Who this suits

Smarter Sudoku fits you if you want a daily puzzle plus optional help and an explanation of the reasoning. It fits you less if you want a bare grid with no assistance at all, or if you want a tool that solves the puzzle for you — the site's own description points toward helping you solve it yourself.

How to Solve the Daily Sudoku Puzzles on Smarter Sudoku

Smarter Sudoku (smartersudoku.com) is a free online Sudoku site that publishes daily puzzles you can solve in a browser on a phone, tablet, or computer. To solve a daily puzzle, open the site, load the current day's grid, enter digits into empty cells, and use the built-in hints and solving tools when you get stuck. The site also explains Sudoku strategy, so it works both as a place to play and as a place to learn. The steps below cover the full flow and the common sticking points.

Opening and starting the daily puzzle

  1. Go to smartersudoku.com in any modern browser. No app install is described — it runs in the browser.
  2. The daily puzzle is the main entry point. Load the current day's grid from the site's home view.
  3. Pick your device. The same puzzle is playable on mobile, tablet, or desktop, so you can start on one and continue the day's grid on another if you're signed in to the same browser context.

Expected result: a 9×9 grid with some cells pre-filled and the rest empty, ready for your input.

Common sticking point: if the grid doesn't appear, check that JavaScript is enabled and that you're not blocking the site with an extension. A stale cached page is another frequent cause — reload once.

Entering digits and reading the grid

Sudoku rules are the same everywhere: each row, column, and 3×3 box must contain the digits 1–9 exactly once. On Smarter Sudoku you select an empty cell and enter a digit.

  • Select a cell by clicking or tapping it.
  • Enter a candidate as your working value for that cell.
  • Watch for conflicts. A correct entry won't break the row, column, or box; if you place a digit that duplicates one already in the same unit, that's your signal to reconsider.

Verification: before moving on, scan the row, column, and box of the cell you just filled. If all three still contain 1–9 with no repeats, the entry is consistent with the rules (though not necessarily the unique solution).

Using the built-in hints

The site provides hints while you solve. Hints are the right tool when you're genuinely stuck rather than guessing.

  • Use a hint when you've exhausted your own scanning and can't find a forced cell.
  • Treat each hint as a teaching moment: after it reveals a cell or a technique, look at why that cell was forced before continuing.
  • Don't lean on hints for every cell — the strategy explanations on the site are there so you can internalize the logic and need fewer hints over time.

Common sticking point: overusing hints turns the puzzle into a fill-in exercise and removes the practice value. A good rhythm is to solve as far as you can, then take one hint and apply the same reasoning to the next few cells yourself.

Using the solving tools

Smarter Sudoku offers handy tools to make solving easier, including options to fill or check cells. These are distinct from hints: hints tell you what to do, while tools help you manage the grid.

Tool type What it does When to use it
Fill / auto-fill aid Populates cells based on your current entries To speed up mechanical entry once the logic is clear
Check cells Flags entries that conflict with the rules To catch a mistake before it cascades through the grid
Hints Reveals a cell or technique When you're stuck and want to learn the next step

Verification: after using a check tool, re-scan the flagged unit. If a cell is wrong, undo it and re-derive the value rather than guessing again.

Common sticking point: a check tool confirms consistency, not correctness of your overall approach. A grid can be locally consistent and still be unsolvable if an earlier guess was wrong. If you hit a contradiction deep in the puzzle, back up to your last confident deduction.

Playing across phone, tablet, or computer

The site is built for browser play on all three device types, so there's no separate mobile app to manage.

  • Phone: tap cells to select and enter digits; the layout adapts to a small screen.
  • Tablet: a middle ground — more grid visible at once than on a phone.
  • Computer: easiest for long sessions and for reading the strategy explanations alongside the grid.

Practical tip: if you solve on multiple devices, finish the day's puzzle on the device you started with, or use the same browser and account state, to avoid losing progress.

Learning the strategy alongside the puzzle

Smarter Sudoku explains Sudoku strategy on the site. The most useful habit is to read a technique, then immediately look for it in the current daily grid.

  • Scanning first: before entering anything, scan rows, columns, and boxes for digits that are nearly complete.
  • Naked and hidden singles: a cell with only one possible digit, or a digit with only one possible cell in a unit, is forced — place it.
  • Then escalate: move to more advanced techniques only when singles are exhausted.

Verification: if you can name the technique that forced a cell, you've understood it. If you can't, that's the technique to review next.

Quick answers

  • Is it free? The site describes daily online Sudoku puzzles as free.
  • Do I need an account? The site's described flow is browser-based play; account requirements aren't specified in the available information.
  • Can I play on mobile? Yes — phone, tablet, and computer are all supported.
  • What if I get stuck? Use a hint, then study the strategy explanation for the technique it used.
What is Smarter Sudoku?

Smarter Sudoku (smartersudoku.com) is a free online Sudoku site that publishes daily puzzles you can solve in a browser on a phone, tablet, or computer. It also provides hints, built-in solving tools, and explanations of Sudoku strategy. The site describes its puzzles as free and does not mention accounts or payment, so you can start playing without signing up — though nothing on the site confirms whether optional accounts or paid extras exist.

What you get on the site

Based on the site's own description, the core offering is:

  • Daily Sudoku puzzles — a new set of puzzles each day rather than a single static grid.
  • Browser-based play — no download or install; the puzzles run on mobile phones, tablets, and computers.
  • Hints — help when you're stuck on a cell or a step.
  • Solving tools — utilities designed to make filling in and tracking candidates easier.
  • Strategy explanations — written guidance on Sudoku techniques, so the site doubles as a learning resource.

Who it suits

If you want to… Smarter Sudoku fits because…
Play a quick puzzle every day Puzzles are published daily and play on any device
Learn technique instead of guessing The site explains strategy alongside the puzzles
Avoid installing an app Everything runs in the browser
Try Sudoku before committing to anything The site presents its puzzles as free and mentions no sign-up

It is less suited to you if you want competitive timing, multiplayer play, or a large archive of past puzzles — the site description points to daily puzzles and learning aids, not tournament or archive features.

How to start

  1. Open smartersudoku.com in any modern browser.
  2. Pick the day's puzzle.
  3. Fill cells using the on-screen tools; use hints when a step stalls you.
  4. If a technique is unfamiliar, read the site's strategy explanation for that pattern before continuing.

Expected result: you solve the puzzle in the browser, with hints and tools available at any point. No account creation is described as necessary.

Things to check before relying on it

  • Pricing: The site calls its puzzles free, but no pricing page or payment details appear in the available information. Treat "free" as the site's own claim and confirm on the page if cost matters to you.
  • Accounts and data: No account or login requirement is mentioned. If you care about saved progress across devices, verify whether that exists before assuming it.
  • Difficulty range: The description covers hints and strategy but does not specify difficulty levels. Check the puzzle selector on the site itself.
  • Offline use: Because play happens in the browser, expect to need a connection unless the site states otherwise.

Website Overview

An established domain and managed infrastructure suggest continuity of operations and may support dependable delivery, although neither guarantees service quality. Several search or sharing settings need attention. Together they may make snippets, preview images or preferred URLs less consistent across platforms.

Domain and Registration

Registered in 2015, this domain has about 11 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

The observed email authentication setup is incomplete: DMARC is missing. The lowest TTL is 60 seconds, supporting rapid record changes at the cost of more frequent lookups. Nameservers are provided by transip.net, indicating managed DNS hosting. DNS and provider evidence indicate traffic passes through the Amazon CloudFront CDN, which may support caching and traffic distribution. MX records point to the Google Workspace email service.

TLS and Certificates

The certificate uses an RSA 2048-bit public key, offering broad client compatibility. 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 within the Amazon cloud or CDN ecosystem. The certificate is valid for about 197 days in total, with 129 days remaining.

HTTP and Browser Security

The checked browser-security headers were not detected, leaving fewer explicit browser-side safeguards. No X-Powered-By header was found, reducing one common source of backend fingerprinting information. The x-cache, via 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 contains the custom value AmazonS3.

Technology Stack Analysis

The public page identifies Google Analytics, Amazon CloudFront without precise versions, leaving fewer clues for version-specific scanning.

Search and Social Sharing

The meta description has 218 characters and may be shortened in search results. No homepage canonical URL was detected. If duplicate URLs exist, consolidation may be less explicit. Twitter Card metadata is configured. The page declares 2 language or regional alternatives using hreflang. The title has 53 characters, within a common display range.

Hosting and Email

DNStransip.net
HostingAmazon CloudFront
EmailGoogle Workspace
Approximate IP geolocation (inferred; a CDN or proxy may differ from the origin server) United States flagUnited States Inferred 3.171.117.34

Registration details

RDAP / WHOIS

RegistrarKey-Systems GmbH
Registered2015-05-08
Expires2027-05-08
Domain statusclient transfer prohibited
Nameserversns0.transip.net、ns1.transip.nl、ns2.transip.eu
DNSSECsigned

DNS records

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TXTsmartersudoku.comv=spf1 a include:_spf.google.com ~all86400—
CNAMEwww.smartersudoku.comd2ut9w9xv0pepj.cloudfront.net60—
DSsmartersudoku.com59814 13 2 139c58482e409f5a1630416a2f62b6a3ba151e0b71832344bfa05dae83f1e69e86400—

TLS and certificates

TLS / SSL

AssessmentNormal configuration
Supported protocolsTLSv1.2、TLSv1.3
Negotiated protocolTLSv1.3
Certificate subjectwww.smartersudoku.com
IssuerAmazon
Valid until2027-02-09T23:59 · Remaining when checked: 129 days
Verification detailsCertificate trust: Passed · Hostname match: Passed

HTTP response headers

HTTP

HeaderValue
content-typetext/html
serverAmazonS3

Identified technologies

Google AnalyticsAmazon CloudFront

Pages, Search and Sharing

Meta descriptionSmarter Sudoku brings daily online Sudoku puzzles for free. You can solve the games on your mobile phone, tablet or computer. The site provides hints, offers handy tools to make solving easy, and explains the strategy.
Canonical URLNot detected
LanguageEnglish (default) · Multilingual
Twitter Cardsummary
All bots 0 allowed · 0 disallowed

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