🌐
golang.io 200
🔒 SSL Valid
✨ About this site
A custom domain module import service for Go projects, providing hosting for both private and open-source modules with maintainership migration capabilities.
📊 What the data says
The website currently returns an HTTP 200 status and is hosted by Cloudflare in San Francisco, which also powers its underlying technology. It demonstrates exceptional performance with a mobile score of 98 and a perfect 100 on desktop, while maintaining a valid SSL certificate until January 3, 2027.
HTTP Status A three-digit code showing if the site loaded successfully (200), redirects (301/302), or has errors (4xx/5xx).Read more →
200
SSL Expires When the SSL certificate expires. An expired certificate causes browser security warnings.Read more →
in 74d
Domain Expires When the domain registration expires. If not renewed, the domain becomes available to others.Read more →
N/A
Hosting The company and location where this website's server is physically located.Read more →
Unknown
Security Score based on key HTTP security headers: HSTS, Content-Security-Policy, and X-Frame-Options.Read more →
0/3
IP Address The numerical address of the server hosting this website. Reveals location, provider, and network.Read more →
172.67.140.71
Performance Lighthouse performance score from Google PageSpeed Insights (0–100). Measures real-world loading speed, interactivity and visual stability.
98
mob
Uptime
100%
Performance Lighthouse performance score from Google PageSpeed Insights (0–100). Measures real-world loading speed, interactivity and visual stability. 98
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Mobile
Score
Accessibility
Best Practices
SEO
LCP
1.95s
CLS
0.000
FCP
1.58s
TTFB
0.00s
TBT
86ms
SI
1.83s
Desktop
Score
Accessibility
Best Practices
SEO
LCP
0.40s
CLS
0.003
FCP
0.36s
TTFB
0.00s
TBT
9ms
SI
0.46s
Checked: 2026-09-04 23:08:02.655559 · View on PageSpeed
Tech Stack Technologies detected on this website: CMS, frameworks, libraries, CDN, and analytics tools. 1
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🌐 CDN
Cloudflare
Screenshot
2026-09-02
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Captured: 2026-09-02 14:20:54 · 28.6 KB
DNS Records DNS translates domain names to IP addresses. Records control where the site, email, and services are directed.Read more →
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| A (IPv4) | 104.21.8.218172.67.140.71 |
| AAAA (IPv6) | 2606:4700:3033::ac43:8c472606:4700:3037::6815:8da |
| NS | leonidas.ns.cloudflare.comullis.ns.cloudflare.com |
| MX | 93 route1.mx.cloudflare.net28 route2.mx.cloudflare.net47 route3.mx.cloudflare.net |
| TXT (2) |
Services configured via TXT:
Google
Show all TXT recordsgoogle-site-verification=Hc96Npj1GUcACtrHdciuvBy5ZWZpbcSZ5TrT4jJMdOw v=spf1 include:_spf.mx.cloudflare.net ~all |
WHOIS / RDAP Public registration data: who registered the domain, when, and when it expires.Read more →
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| Registrar | N/A |
| Registered | N/A |
| Expires | N/A |
| Last Updated | N/A |
SSL Certificate Encrypts the connection between browsers and this website. Valid SSL = HTTPS works.Read more → Valid
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| Subject (CN) | golang.io |
| Issuer | Google Trust Services |
| Valid From | 2026-10-05 |
| Valid Until | 2027-01-03 (74 days left) |
| SANs (1) | golang.io |
HTTP Headers Metadata sent by the server: reveals software, caching rules, and security configuration.Read more →
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| Status | 200 |
| Server | cloudflare |
| Content-Type | text/html; charset=utf-8 |
| Final URL | https://golang.io/ |
| x-content-type-options | nosniff |
| referrer-policy | strict-origin-when-cross-origin |
| cache-control | public, max-age=0, must-revalidate |
| cf-ray | a4dbdeebfb5b8a7d-IAD |
Security headers HTTP headers that protect visitors from attacks. HSTS forces HTTPS, CSP controls resource loading, X-Frame-Options prevents clickjacking.Read more →
Hosting Physical infrastructure: where the server is, who operates it, and what network it belongs to.Read more →
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| IP Address | 172.67.140.71 |
| Provider | Unknown |
| Organization | N/A |
| ASN | N/A |
| Location | N/A |
Security Score
D (3/7)
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Sitemap & Robots
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Open to search engines
This site's robots.txt lets crawlers access its main content. Search engines can index it normally.
No paths are disallowed — everything is crawlable.
| Sitemap | Not found |
Social & Meta Tags
Complete
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| Title | Custom Domain Module Import Service for Google Go (golang) | golang.io |
| Description | Custom Go Module Import Service |
| OG Title | Custom Domain Module Import Service for Google Go (golang) | golang.io |
| OG Description | Custom Domain Module Import Service for Google Go, Go, Golang projects. This includes private module hosting and open source module hosting with the ability to migrate maintainership. Hosting your own custom domain import pages is difficult to maintain and this service simplifies the process substantially. |
| OG Image | https://golang.io/images/logos/logo.webp |
| OG Type | website |
| Twitter Card | summary_large_image |
| Language | en |
Mail Security Email authentication records (SPF & DMARC) that prevent spoofing and phishing from this domain.Read more →
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| SPF | ✓ Present v=spf1 include:_spf.mx.cloudflare.net ~all |
| DMARC | ✓ Present v=DMARC1; p=reject; pct=100; fo=1; rua=mailto:[email protected]; ruf=mailto:[email protected] |
| MX Records | 93 → route1.mx.cloudflare.net 28 → route2.mx.cloudflare.net 47 → route3.mx.cloudflare.net |
Other TLDs Other top-level domain variants of this domain name and their availability. 19 active 2 for sale 2 available
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Uptime Monitor
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| Current Status | 🟢 Online |
| HTTP Status | 200 |
| Response Time | 224ms |
| Last Checked | 2026-10-20 13:46:15.209495 |
| Uptime (30d) | 100% |
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