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Fastly
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Des Moines, Iowa, United States
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typescriptlang.org
No paid content found
Categories: Development
TypeScript extends JavaScript by adding types to the language. TypeScript speeds up your development experience by catching errors and providing fixes before you even run your code.
Updated: 2026-09-03 15:19
Language: English (default)
Access: Normal
Profile views 4
Outbound visits 4
Website Overview
Identifiable technologies and additional version or configuration signals make the service easier to fingerprint, which may help targeted scanners narrow their checks. An established domain and managed infrastructure suggest continuity of operations and may support dependable delivery, although neither guarantees service quality.
Domain and Registration
Registered in 2012, this domain has about 14 years of history. That suggests continuity, although ownership and purpose may have changed. The registrar, MarkMonitor Inc., specializes in corporate domain and brand management, suggesting attention to domain asset protection. Transfer-protection status is present, helping reduce the risk of unauthorized domain transfers. The domain uses the common .org extension, which is not an independent safety signal.
DNS and Email
Nameservers are provided by Azure DNS, indicating managed DNS hosting. CAA records restrict which certificate authorities are authorized to issue certificates. No CNAME was found; the observed records resolve directly to addresses. No MX record was found. A conventional explicit inbound-mail route is not configured. DNSSEC signatures were not detected, so this additional DNS authenticity protection is not confirmed.
TLS and Certificates
The certificate includes the organization field Microsoft Corporation. The certificate uses an RSA 2048-bit public key, offering broad client compatibility. The server supplied a complete certificate chain. The certificate is valid for about 99 days in total, with 92 days remaining. The certificate SAN covers 187 names.
HTTP and Browser Security
The response lacks these common security headers: CSP, X-Content-Type-Options, Referrer-Policy, Permissions-Policy, clickjacking protection. CORS permits any origin to read this response. This is common for public resources; sensitive responses need narrower handling. No X-Powered-By header was found, reducing one common source of backend fingerprinting information. The x-cache, x-served-by, via response header indicates a CDN or caching proxy in the delivery path. No obvious internal addresses or debug information were found in the headers.
Technology Stack Analysis
The public page identifies Gatsby 5.16.1, Fastly, with exact versions exposed for 1 technologies. These details can narrow vulnerability checks, although exposure alone is not a vulnerability.
Search and Social Sharing
The meta description has 181 characters and may be shortened in search results. The Generator tag identifies Gatsby 5.16.1, making the publishing system easier to fingerprint. No homepage canonical URL was detected. If duplicate URLs exist, consolidation may be less explicit. Open Graph is partially configured; og:image, og:type is missing. The title has 45 characters, within a common display range.
Hosting and Email
Pages, Search and Sharing
| Meta description | TypeScript extends JavaScript by adding types to the language. TypeScript speeds up your development experience by catching errors and providing fixes before you even run your code. |
|---|---|
| Canonical URL | Not detected |
| Language | English (default) |
| Twitter Card | Not detected |
Social Sharing Preview
2 fieldsrobots.txt (opens in a new tab)
HTTP 404No robots.txt found
Sitemaps
0No sitemaps found
Registration details RDAP / WHOIS
| Registrar | MarkMonitor Inc. |
|---|---|
| Registered | 2012-08-13 |
| Expires | 2027-08-13 |
| Domain status | client delete prohibited、client transfer prohibited、client update prohibited |
| Nameservers | ns1-04.azure-dns.com、ns2-04.azure-dns.net、ns3-04.azure-dns.org、ns4-04.azure-dns.info |
| DNSSEC | unsigned |
DNS records
| Type | Name | Value | TTL | Priority |
|---|---|---|---|---|
| A | typescriptlang.org | 20.112.250.133 | 3600 | — |
| A | typescriptlang.org | 20.231.239.246 | 3600 | — |
| A | typescriptlang.org | 20.236.44.162 | 3600 | — |
| A | typescriptlang.org | 20.70.246.20 | 3600 | — |
| A | typescriptlang.org | 20.76.201.171 | 3600 | — |
| NS | typescriptlang.org | ns1-04.azure-dns.com | 172800 | — |
| NS | typescriptlang.org | ns2-04.azure-dns.net | 172800 | — |
| NS | typescriptlang.org | ns3-04.azure-dns.org | 172800 | — |
| NS | typescriptlang.org | ns4-04.azure-dns.info | 172800 | — |
| TXT | typescriptlang.org | 71z7qrm0ktfz0fjzj9mxyf5ntv9fydsm | 3600 | — |
| TXT | typescriptlang.org | chq4pfvlfb4v94bl6lfmlg4rt8mzcy6s | 3600 | — |
| CAA | typescriptlang.org | 0 contactemail "[email protected]" | 3600 | — |
| DMARC | _dmarc.typescriptlang.org | v=DMARC1; p=reject; rua=mailto:[email protected];ruf=mailto:[email protected];fo=1:s:d | 3600 | — |
TLS and certificates
| Assessment | Normal configuration |
|---|---|
| Supported protocols | TLSv1.2、TLSv1.3 |
| Negotiated protocol | TLSv1.3 |
| Certificate subject | surface.com |
| Issuer | Microsoft Corporation |
| Valid until | 2026-12-04T19:18 · Remaining when checked: 92 days |
| Verification details | Certificate trust: Passed · Hostname match: Passed |
HTTP response headers
| Header | Value |
|---|---|
| content-type | text/html; charset=utf-8 |
| cache-control | max-age=600 |
| server | GitHub.com |
| strict-transport-security | max-age=31556952; includeSubDomains; preload |
| access-control-allow-origin | * |
Identified technologies
Gatsby 5.16.1Fastly
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