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typescriptlang.org
Security, TLS & performance report · checked 2026-11-01T04:24:57Z · category: languages
Security headers: F 17/100
(rank #340 of 461) · TLS: TLSv1.3 ·
Cert expires in 90 days (rank #305 of 459 soonest)
· Response: 212.6 ms (rank #237 of 446)
Certificate valid for 90 more days (until Jan 30 15:36:39 2027 GMT).
TLS certificate
| Field | Value |
| Issuer | Microsoft Corporation |
| Subject CN | surface.com |
| Valid until | Jan 30 15:36:39 2027 GMT |
| Days left | 90 |
| TLS version | TLSv1.3 |
| SAN entries | 30 |
Security headers (17/100, grade F)
| Header | Status |
|---|
strict-transport-security | max-age=31556952; includeSubDomains; preload |
content-security-policy | missing |
x-frame-options | missing |
x-content-type-options | missing |
referrer-policy | missing |
permissions-policy | missing |
Availability & performance
| Field | Value |
| Availability | 100% (3/3 probes) |
| Avg response | 212.6 ms |
| Fastest / slowest | 140.6 / 312.9 ms |
| HTTP status | 200 (https) |
| Server | GitHub.com |
DNS & robots.txt
| Field | Value |
| A records | 20.236.44.162, 20.112.250.133, 20.70.246.20, 20.231.239.246 |
| Nameservers | ns1-04.azure-dns.com, ns2-04.azure-dns.net, ns3-04.azure-dns.org, ns4-04.azure-dns.info |
| MX records | 0 |
| robots.txt | absent (n/a sitemap refs, n/a disallow rules) |
How typescriptlang.org compares
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free tools or the API. Last built 2026-11-01.