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Amazon Route 53
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Fastly
Microsoft 365
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Website profiles · Technology insights · Alternatives
docs.github.com
Paid content
Multilingual
Categories: Development
Get started, troubleshoot, and make the most of GitHub. Documentation for new users, developers, administrators, and all of GitHub's products.
Updated: 2026-09-01 12:10
Language: English (default)
Access: Normal
Profile views 5
Outbound visits 6
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 2007, this domain has about 18 years of history. That suggests continuity, although ownership and purpose may have changed. The registrar, MarkMonitor Inc., specializes in corporate domain and brand management, suggesting attention to domain asset protection. 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 lowest TTL is 4 seconds, supporting rapid record changes at the cost of more frequent lookups. Nameservers are provided by Amazon Route 53, indicating managed DNS hosting. MX records point to the Microsoft 365 email service. 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 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 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
X-Powered-By exposes backend information: Next.js. The response lacks these common security headers: Permissions-Policy. CORS permits any origin to read this response. This is common for public resources; sensitive responses need narrower handling. The x-cache, x-served-by, 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.
Technology Stack Analysis
The public page identifies Next.js, Fastly without precise versions, leaving fewer clues for version-specific scanning.
Search and Social Sharing
No homepage canonical URL was detected. If duplicate URLs exist, consolidation may be less explicit. Open Graph is partially configured; og:description is missing. Twitter Card metadata is configured. The page declares 8 language or regional alternatives using hreflang. The title has 11 characters, within a common display range.
Hosting and Email
Pages, Search and Sharing
| Meta description | Get started, troubleshoot, and make the most of GitHub. Documentation for new users, developers, administrators, and all of GitHub's products. |
|---|---|
| Canonical URL | Not detected |
| Language | English (default) · Multilingual |
| Twitter Card | summary |
Social Sharing Preview
7 fieldsSharing metadata
| og:url | https://docs-internal.github.com/en |
|---|---|
| og:type | article |
| og:image | https://docs.github.com/assets/cb-345/images/social-cards/default.png |
| og:title | GitHub.com Help Documentation |
| twitter:card | summary |
| twitter:image | https://docs.github.com/assets/cb-345/images/social-cards/default.png |
| twitter:title | GitHub.com Help Documentation |
robots.txt (opens in a new tab)
0 rulesAll bots 0 allowed · 0 disallowed
No matching rules.
Sitemaps
0No sitemaps found
Registration details RDAP / WHOIS
| Registrar | MarkMonitor Inc. |
|---|---|
| Registered | 2007-10-09 |
| Expires | 2026-10-09 |
| Domain status | client delete prohibited、client transfer prohibited、client update prohibited |
| Nameservers | dns1.p08.nsone.net、dns2.p08.nsone.net、dns3.p08.nsone.net、dns4.p08.nsone.net、ns-1283.awsdns-32.org、ns-1707.awsdns-21.co.uk、ns-421.awsdns-52.com、ns-520.awsdns-01.net |
| DNSSEC | unsigned |
DNS records
| Type | Name | Value | TTL | Priority |
|---|---|---|---|---|
| A | docs.github.com | 185.199.108.154 | 24 | — |
| A | docs.github.com | 185.199.109.154 | 24 | — |
| A | docs.github.com | 185.199.110.154 | 24 | — |
| A | docs.github.com | 185.199.111.154 | 24 | — |
| AAAA | docs.github.com | 2606:50c0:8000::154 | 28 | — |
| AAAA | docs.github.com | 2606:50c0:8001::154 | 28 | — |
| AAAA | docs.github.com | 2606:50c0:8002::154 | 28 | — |
| AAAA | docs.github.com | 2606:50c0:8003::154 | 28 | — |
| MX | github.com | github-com.mail.protection.outlook.com | 119 | 0 |
| NS | github.com | dns1.p08.nsone.net | 2286 | — |
| NS | github.com | dns2.p08.nsone.net | 2286 | — |
| NS | github.com | dns3.p08.nsone.net | 2286 | — |
| NS | github.com | dns4.p08.nsone.net | 2286 | — |
| NS | github.com | ns-1283.awsdns-32.org | 2286 | — |
| NS | github.com | ns-1707.awsdns-21.co.uk | 2286 | — |
| NS | github.com | ns-421.awsdns-52.com | 2286 | — |
| NS | github.com | ns-520.awsdns-01.net | 2286 | — |
| TXT | github.com | 00Dd0000000hHE0=1TBKg000000TN2r | 212 | — |
| TXT | github.com | MS=6BF03E6AF5CB689E315FB6199603BABF2C88D805 | 212 | — |
| TXT | github.com | MS=ms44452932 | 212 | — |
| TXT | github.com | MS=ms58704441 | 212 | — |
| TXT | github.com | TAILSCALE-xOzoDvFUzZr5YYVCQFuD | 212 | — |
| TXT | github.com | adobe-idp-site-verification=b92c9e999aef825edc36e0a3d847d2dbad5b2fc0e05c79ddd7a16139b48ecf4b | 212 | — |
| TXT | github.com | anthropic-domain-verification-4az7qn=if8YWuRRqwLycGJDooumzHtxm | 212 | — |
| TXT | github.com | apple-domain-verification=RyQhdzTl6Z6x8ZP4 | 212 | — |
| TXT | github.com | atlassian-domain-verification=jjgw98AKv2aeoYFxiL/VFaoyPkn3undEssTRuMg6C/3Fp/iqhkV4HVV7WjYlVeF8 | 212 | — |
| TXT | github.com | calendly-site-verification=at0DQARi7IZvJtXQAWhMqpmIzpvoBNF7aam5VKKxP | 212 | — |
| TXT | github.com | cursor-domain-verification-gtfwmt=1rfLOtiTngX5QSxD5HvNKTvm3 | 212 | — |
| TXT | github.com | docusign=087098e3-3d46-47b7-9b4e-8a23028154cd | 212 | — |
| TXT | github.com | facebook-domain-verification=39xu4jzl7roi7x0n93ldkxjiaarx50 | 212 | — |
| TXT | github.com | google-site-verification=82Le34Flgtd15ojYhHlGF_6g72muSjamlMVThBOJpks | 212 | — |
| TXT | github.com | google-site-verification=UTM-3akMgubp6tQtgEuAkYNYLyYAvpTnnSrDMWoDR3o | 212 | — |
| TXT | github.com | jamf-site-verification=XtaPNIYghF_e_xRDI8CjgQ | 212 | — |
| TXT | github.com | krisp-domain-verification=ZlyiK7XLhnaoUQb2hpak1PLY7dFkl1WE | 212 | — |
| TXT | github.com | loom-site-verification=f3787154f1154b7880e720a511ea664d | 212 | — |
| TXT | github.com | miro-verification=d2e174fdb00c71e0bcf58f8e58c3da2dd80dcfa9 | 212 | — |
| TXT | github.com | openai-domain-verification=dv-3nh33eQwdkotMIAzLrIDVZo1 | 212 | — |
| TXT | github.com | serval-domain-verification-ydryhj=qbkiEakpwEpTvHh5fIiCqtaue | 212 | — |
| TXT | github.com | shopify-verification-code=t1YPwcmvnxZyBycaCpk1MPyWoFs72o | 212 | — |
| TXT | github.com | stripe-verification=f88ef17321660a01bab1660454192e014defa29ba7b8de9633c69d6b4912217f | 212 | — |
| TXT | github.com | v=spf1 ip4:192.30.252.0/22 include:spf.protection.outlook.com include:_netblocks.google.com include:_netblocks2.google.com include:mail.zendesk.com include:_spf.salesforce.com include:servers.mcsv.net include:mktomail.com include:sendgrid.net ip4:62.253.227.114 ip4:166.78.69.169 ip4:166.78.69.170 ip4:166.78.71.131 ~all | 212 | — |
| CAA | github.com | 0 issue "digicert.com" | 3600 | — |
| CAA | github.com | 0 issue "globalsign.com" | 3600 | — |
| CAA | github.com | 0 issue "letsencrypt.org" | 3600 | — |
| CAA | github.com | 0 issue "sectigo.com" | 3600 | — |
| CAA | github.com | 0 issuewild "digicert.com" | 3600 | — |
| CAA | github.com | 0 issuewild "letsencrypt.org" | 3600 | — |
| CAA | github.com | 0 issuewild "sectigo.com" | 3600 | — |
| DMARC | _dmarc.github.com | v=DMARC1; p=quarantine; sp=reject; pct=100; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1 | 4 | — |
TLS and certificates
| Assessment | Normal configuration |
|---|---|
| Supported protocols | TLSv1.2、TLSv1.3 |
| Negotiated protocol | TLSv1.3 |
| Certificate subject | *.github.io |
| Issuer | Let's Encrypt |
| Valid until | 2026-10-31T23:38 · Remaining when checked: 60 days |
| Verification details | Certificate trust: Passed · Hostname match: Passed |
HTTP response headers
| Header | Value |
|---|---|
| content-type | text/html; charset=utf-8 |
| cache-control | public, max-age=60 |
| strict-transport-security | max-age=31557600 |
| content-security-policy | default-src 'none';prefetch-src 'self';connect-src 'self' https://collector.githubapp.com;font-src 'self' data:;img-src 'self' github.com *.github.com *.githubusercontent.com *.githubassets.com data: placehold.it;object-src 'self';script-src 'self' github.com *.github.com *.githubusercontent.com *.githubassets.com 'self' data: 'sha256-dspnkRAwFNI4G3CK/poQ1CoGlM1rtnGvq1TX7FlQtM4=';script-src-attr 'self';frame-src 'self' github.com *.github.com *.githubusercontent.com *.githubassets.com https://support.github.com;frame-ancestors 'self' github.com *.github.com *.githubusercontent.com *.githubassets.com;style-src 'self' github.com *.github.com *.githubusercontent.com *.githubassets.com 'self' 'unsafe-inline' data:;child-src 'self';manifest-src 'self';upgrade-insecure-requests;base-uri 'self';form-action 'self' |
| x-frame-options | SAMEORIGIN |
| x-content-type-options | nosniff |
| referrer-policy | no-referrer-when-downgrade |
| access-control-allow-origin | * |
Identified technologies
Next.jsFastly
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