🌐
ycombinator.dev 404
🔒 SSL Valid
HTTP Status A three-digit code showing if the site loaded successfully (200), redirects (301/302), or has errors (4xx/5xx).Read more →
404
SSL Expires When the SSL certificate expires. An expired certificate causes browser security warnings.Read more →
in 81d
Domain Expires When the domain registration expires. If not renewed, the domain becomes available to others.Read more →
in 42d
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 →
1/3
IP Address The numerical address of the server hosting this website. Reveals location, provider, and network.Read more →
216.150.1.193
Performance Lighthouse performance score from Google PageSpeed Insights (0–100). Measures real-world loading speed, interactivity and visual stability.
100
mob
Uptime
100%
Performance Lighthouse performance score from Google PageSpeed Insights (0–100). Measures real-world loading speed, interactivity and visual stability. 100
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Mobile
Score
Accessibility
Best Practices
SEO
LCP
0.79s
CLS
0.000
FCP
0.79s
TTFB
0.00s
TBT
0ms
SI
0.79s
Checked: 2026-09-05 21:58:10.119716 · View on PageSpeed
Tech Stack Technologies detected on this website: CMS, frameworks, libraries, CDN, and analytics tools. 1
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☁️ Hosting
Vercel
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) | 216.150.1.1216.150.1.193 |
| NS | ns2.vercel-dns.comns1.vercel-dns.com |
WHOIS / RDAP Public registration data: who registered the domain, when, and when it expires.Read more →
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| Registrar | Name.com, Inc. |
| Registered | 2025-11-28 |
| Expires | 2026-11-28 (in 42 days) |
| Last Updated | 2026-04-24 |
| Status | client transfer prohibited |
SSL Certificate Encrypts the connection between browsers and this website. Valid SSL = HTTPS works.Read more → Valid
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| Subject (CN) | *.ycombinator.dev |
| Issuer | Let's Encrypt |
| Valid From | 2026-10-08 |
| Valid Until | 2027-01-06 (81 days left) |
| SANs (2) | *.ycombinator.devycombinator.dev |
HTTP Headers Metadata sent by the server: reveals software, caching rules, and security configuration.Read more →
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| Status | 404 |
| Server | Vercel |
| Content-Type | text/plain; charset=utf-8 |
| Final URL | https://ycombinator.dev/ |
| strict-transport-security | max-age=63072000 |
| cache-control | public, max-age=0, must-revalidate |
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 | 216.150.1.193 |
| Provider | Unknown |
| Organization | N/A |
| ASN | N/A |
| Location | N/A |
Security Score
F (2/7)
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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 |
Other TLDs Other top-level domain variants of this domain name and their availability. 17 active 6 available
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Uptime Monitor
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| Current Status | 🟢 Client Error |
| HTTP Status | 404 |
| Response Time | 30ms |
| Last Checked | 2026-10-16 10:00:58.601573 |
| Uptime (30d) | 100% |
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