🌐
coursera.ca 200
🔒 SSL Valid
✨ About this site
A lesser-known site displaying a browser security check.
📊 What the data says
This domain is currently active with an HTTP 200 status and is served via openresty/1.29.2.5. It maintains strong security with HSTS enabled and a valid SSL certificate until October 3, 2026. The site achieves perfect performance scores of 100 on both mobile and desktop devices.
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 43d
Domain Expires When the domain registration expires. If not renewed, the domain becomes available to others.Read more →
in 180d
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 →
45.79.167.180
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
0.77s
CLS
0.000
FCP
0.77s
TTFB
0.00s
TBT
0ms
SI
0.77s
Desktop
Score
Accessibility
Best Practices
SEO
LCP
0.21s
CLS
0.000
FCP
0.21s
TTFB
0.00s
TBT
0ms
SI
0.27s
Checked: 2026-09-04 23:26:43.015741 · View on PageSpeed
Tech Stack Technologies detected on this website: CMS, frameworks, libraries, CDN, and analytics tools.
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No technologies detected
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) | 66.175.209.17945.79.167.18096.126.111.16545.33.83.100 |
| AAAA (IPv6) | 2600:3c03::f03c:95ff:fe91:5d522600:3c03::f03c:95ff:fe00:29ca2600:3c03::f03c:95ff:feed:cf2a2600:3c03::f03c:95ff:feed:4d4f |
| NS | shishi.ns.giantpanda.combasi.ns.giantpanda.com |
| MX | 1 mail.mailerhost.net |
| TXT (1) |
v=spf1 ip6:fd43:c0d1:c090::/48 -all |
WHOIS / RDAP Public registration data: who registered the domain, when, and when it expires.Read more →
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| Registrar | Namespro Solutions Inc. |
| Registered | 2012-04-18 |
| Expires | 2027-04-18 (in 180 days) |
| Last Updated | 2026-04-15 |
| 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) | coursera.ca |
| Issuer | Let's Encrypt |
| Valid From | 2026-09-03 |
| Valid Until | 2026-12-02 (43 days left) |
| SANs (2) | *.coursera.cacoursera.ca |
HTTP Headers Metadata sent by the server: reveals software, caching rules, and security configuration.Read more →
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| Status | 200 |
| Server | openresty/1.29.2.5 |
| Content-Type | text/html; charset=utf-8 |
| Final URL | https://coursera.ca/ |
| strict-transport-security | max-age=0; includeSubDomains; preload |
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 | 45.79.167.180 |
| 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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Blocked from crawlers
robots.txt disallows the entire site (/). Search engines are asked not to index any pages.
Areas hidden from crawlers:
Entire site
1
⏱️ Crawl delay: 10s
Show raw disallow rules (1)
/
| Sitemap | Not found |
Social & Meta Tags
Missing
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| Title | coursera.ca - Coming Soon |
| 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 ip6:fd43:c0d1:c090::/48 -all |
| DMARC | Not set |
| MX Records | 1 → mail.mailerhost.net |
Other TLDs Other top-level domain variants of this domain name and their availability. 20 active 1 for sale 2 available
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Uptime Monitor
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| Current Status | 🟢 Online |
| HTTP Status | 204 |
| Response Time | 30ms |
| Last Checked | 2026-10-16 17:31:03.294148 |
| Uptime (30d) | 100% |
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