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slack.ca 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 49d
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 →
209.97.222.140
Performance Lighthouse performance score from Google PageSpeed Insights (0–100). Measures real-world loading speed, interactivity and visual stability.
N/A
Uptime
N/A
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. 3
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📊 Analytics
Google Analytics
Google Tag Manager
🖥️ Web Server
Apache
Screenshot
Processing...
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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) | 209.97.222.140 |
| NS | turing.theorem.cad.ns.buddyns.com |
| MX | 0 a.mx.slack.ca |
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) | theorem.ca |
| Issuer | Let's Encrypt |
| Valid From | 2026-09-06 |
| Valid Until | 2026-12-05 (49 days left) |
| SANs (2) | theorem.cawww.theorem.ca |
HTTP Headers Metadata sent by the server: reveals software, caching rules, and security configuration.Read more →
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| Status | 200 |
| Server | Apache |
| Content-Type | text/html; charset=UTF-8 |
| Final URL | https://slack.ca/ |
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 | 209.97.222.140 |
| 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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Blocked from crawlers
robots.txt disallows the entire site (/). Search engines are asked not to index any pages.
Areas hidden from crawlers:
Entire site
2
Show raw disallow rules (2)
/
/*
| Sitemap | Not found |
Social & Meta Tags
Complete
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| Title | theorem.ca |
| OG Title | theorem.ca |
| OG Description | theorem.ca - digital strategy, tools, analysis, hosting |
| OG Image | https://theorem.ca/images/theorem.png |
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 | 0 → a.mx.slack.ca |
Other TLDs Other top-level domain variants of this domain name and their availability. 16 active 6 for sale 1 available
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Uptime Monitor
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Not checked yet — data will appear after the first monitoring run.