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nextjs.io 308
🔒 SSL Valid
✨ About this site
This is the official website for Next.js, a popular React framework developed by Vercel for building fast, server-rendered web applications. It provides comprehensive documentation, guides, and resources for frontend developers and enterprises.
📊 What the data says
The website currently returns an HTTP 308 status code and is hosted via Cloudflare. Its SSL certificate remains valid until November 18, 2026.
HTTP Status A three-digit code showing if the site loaded successfully (200), redirects (301/302), or has errors (4xx/5xx).Read more →
308
SSL Expires When the SSL certificate expires. An expired certificate causes browser security warnings.Read more →
in 86d
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 →
104.21.91.193
Performance Lighthouse performance score from Google PageSpeed Insights (0–100). Measures real-world loading speed, interactivity and visual stability.
N/A
Uptime
100%
Performance Lighthouse performance score from Google PageSpeed Insights (0–100). Measures real-world loading speed, interactivity and visual stability.
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Performance data not available yet.
Tech Stack Technologies detected on this website: CMS, frameworks, libraries, CDN, and analytics tools. 1
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🌐 CDN
Cloudflare
Screenshot
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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) | 104.21.91.193172.67.178.95 |
| AAAA (IPv6) | 2606:4700:3036::ac43:b25f2606:4700:3035::6815:5bc1 |
| NS | maya.ns.cloudflare.comkyrie.ns.cloudflare.com |
| MX | 10 www52.your-server.de |
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) | nextjs.io |
| Issuer | Google Trust Services |
| Valid From | 2026-10-18 |
| Valid Until | 2027-01-16 (86 days left) |
| SANs (2) | nextjs.io*.nextjs.io |
HTTP Headers Metadata sent by the server: reveals software, caching rules, and security configuration.Read more →
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| Status | 308 |
| Server | cloudflare |
| Content-Type | text/plain |
| Final URL | https://nextjs.io/ |
| cf-ray | a4e3ca50694723cc-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 | 104.21.91.193 |
| Provider | Unknown |
| Organization | N/A |
| ASN | N/A |
| Location | N/A |
Security Score
F (1/7)
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Sitemap & Robots
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No robots.txt
This site has no robots.txt file, so crawlers may access everything by default.
| Sitemap | Not found |
Social & Meta Tags
Missing
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Mail Security Email authentication records (SPF & DMARC) that prevent spoofing and phishing from this domain.Read more →
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| SPF | Not set |
| DMARC | Not set |
| MX Records | 10 → www52.your-server.de |
Other TLDs Other top-level domain variants of this domain name and their availability. 17 active 1 for sale 5 available
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Uptime Monitor
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| Current Status | 🟢 Redirect |
| HTTP Status | 308 |
| Response Time | 168ms |
| Last Checked | 2026-10-18 00:46:25.895869 |
| Uptime (30d) | 100% |
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