简体中文
css-speedrun.netlify.app
A small fun app to test your CSS knowledge. Find the correct CSS selectors for the 10 puzzles as fast as possible.
At a glance
- Category
- Development
- Language
- English
- Paid-content signal
- No paid content foundObserved
- Registered
- 2018
- Hosting
- NetlifyInferred
- HTTPS certificate trusted
- PassedObserved
- Last updated
Related questions
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Website Overview
An established domain and managed infrastructure suggest continuity of operations and may support dependable delivery, although neither guarantees service quality. Page metadata, canonical configuration and social previews work together to provide more consistent search and sharing presentation.
Domain and Registration
Registered in 2018, this domain has about 8 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 .app extension, which is not an independent safety signal.
DNS and Email
Nameservers are provided by NS1, indicating managed DNS hosting. CAA records restrict which certificate authorities are authorized to issue certificates. No CNAME was found; the observed records resolve directly to addresses. No MX record was found. A conventional explicit inbound-mail route is not configured. TXT records include verification markers for Google. Such markers may also remain after a service stops being used.
TLS and Certificates
The certificate includes the organization field Netlify, Inc. The certificate issuer is DigiCert Inc, a commercial certificate authority. The public key uses EC with 256 bits. The server supplied a complete certificate chain. The certificate is valid for about 396 days in total, with 137 days remaining.
HTTP and Browser Security
The response lacks these common security headers: CSP, X-Content-Type-Options, Referrer-Policy, Permissions-Policy, clickjacking protection. No X-Powered-By header was found, reducing one common source of backend fingerprinting information. No obvious internal addresses or debug information were found in the headers. The Server header contains the custom value Netlify. No explicit CDN or WAF marker was found in the response headers.
Technology Stack Analysis
The public page identifies Netlify without precise versions, leaving fewer clues for version-specific scanning.
Search and Social Sharing
Open Graph is partially configured; og:type is missing. Twitter Card metadata is configured. The title has 35 characters, within a common display range. A meta description is present, with 114 characters. The observed directives allow indexing and link following.
Hosting and Email
NS1
Netlify
Ashburn, Virginia, United States
Inferred
18.208.88.157
Registration details
| Registrar | Name.com, Inc. |
|---|---|
| Registered | 2018-05-08 |
| Expires | 2031-05-08 |
| Domain status | client transfer prohibited |
| Nameservers | dns1.p01.nsone.net、dns2.p01.nsone.net、dns3.p01.nsone.net、dns4.p01.nsone.net |
| DNSSEC | unsigned |
DNS records
| Type | Name | Value | TTL | Priority |
|---|---|---|---|---|
| A | css-speedrun.netlify.app | 18.208.88.157 | 120 | — |
| A | css-speedrun.netlify.app | 98.84.224.111 | 120 | — |
| AAAA | css-speedrun.netlify.app | 2600:1f18:16e:df01::258 | 311 | — |
| AAAA | css-speedrun.netlify.app | 2600:1f18:16e:df01::259 | 311 | — |
| NS | netlify.app | dns1.p01.nsone.net | 3600 | — |
| NS | netlify.app | dns2.p01.nsone.net | 3600 | — |
| NS | netlify.app | dns3.p01.nsone.net | 3600 | — |
| NS | netlify.app | dns4.p01.nsone.net | 3600 | — |
| TXT | netlify.app | _kvz3va36b5cudpl46gbej22cfyyw908 | 1800 | — |
| TXT | netlify.app | google-site-verification=0KCpoJchrixypEMvtkzLtj6VMqMXKcuWS7j2jjjDcys | 1800 | — |
| TXT | netlify.app | v=spf1 -all | 1800 | — |
| CAA | netlify.app | 128 iodef "mailto:[email protected]" | 1800 | — |
| CAA | netlify.app | 128 issue "amazon.com" | 1800 | — |
| CAA | netlify.app | 128 issue "digicert.com;account=2d83e9ac9b6776c3f215150f6ebceea8cefe3bc2e1fb5efffb1d71e200575226" | 1800 | — |
| DMARC | _dmarc.netlify.app | v=DMARC1; p=reject; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1 | 300 | — |
TLS and certificates
HTTP response headers
| Header | Value |
|---|---|
| content-type | text/html; charset=UTF-8 |
| cache-control | public,max-age=0,must-revalidate |
| server | Netlify |
| strict-transport-security | max-age=31536000; includeSubDomains; preload |
Identified technologies
Pages, Search and Sharing
| Meta description | A small fun app to test your CSS knowledge. Find the correct CSS selectors for the 10 puzzles as fast as possible. |
|---|---|
| Canonical URL | https://css-speedrun.netlify.app/ |
| Language | English (default) |
| Twitter Card | summary_large_image |
Social Sharing Preview
10 fields
robots.txt (opens in a new tab)
HTTP 404No robots.txt found
Sitemaps
0No sitemaps found
User reviews (0)