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substack.net 200
🔒 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 →
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 →
in 355d
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 →
2/3
IP Address The numerical address of the server hosting this website. Reveals location, provider, and network.Read more →
198.51.233.1
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.
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No technologies detected
Screenshot
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Screenshot is being captured...
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) | 198.51.233.1 |
| NS | ns3.digitalocean.comns2.digitalocean.comns1.digitalocean.com |
WHOIS / RDAP Public registration data: who registered the domain, when, and when it expires.Read more →
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| Registrar | NameCheap, Inc. |
| Registered | 2009-10-06 |
| Expires | 2027-10-06 (in 355 days) |
| Last Updated | 2026-09-06 |
| 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) | substack.net |
| Issuer | Let's Encrypt |
| Valid From | 2026-09-30 |
| Valid Until | 2026-12-29 (74 days left) |
| SANs (1) | substack.net |
HTTP Headers Metadata sent by the server: reveals software, caching rules, and security configuration.Read more →
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| Status | 200 |
| Server | neocities |
| Content-Type | text/html |
| Final URL | https://substack.net/ |
| strict-transport-security | max-age=2630000 |
| content-security-policy | upgrade-insecure-requests; default-src 'unsafe-inline' 'unsafe-eval' 'self' data: blob: * |
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 | 198.51.233.1 |
| 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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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. 20 active 3 for sale
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Uptime Monitor
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| Current Status | 🟢 Online |
| HTTP Status | 200 |
| Response Time | 58ms |
| Last Checked | 2026-10-16 05:45:05.904054 |
| Uptime (30d) | 100% |
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