Infrastructure
· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.DCDN & DeliveryActionNo CDN detectedFIX
Consider using a CDN to improve global delivery speed and reduce origin load.
CIPv6 ReadinessActionNo IPv6 supportREVIEW
IPv6 support is increasingly important for global accessibility. About 40% of internet users have IPv6 connectivity.
No AAAA records — same impact as 'no IPv6 (AAAA) records'; IPv6-preferring clients pay extra latency falling back to IPv4.
Source: Google IPv6 stats
BURL Variantswww/non-www, trailing slash, HTTP→HTTPSREVIEW
www / non-www
Inconsistent — duplicate content risk
HTTP → HTTPS
Consistent
BTLS Certificate Expiry & Recommendations227 days until leaf cert expires — 3 issues to addressREVIEW
Certificate validity
Recommended actions
- Enable HSTS: Strict-Transport-Security: max-age=31536000; includeSubDomains
- Enable DNSSEC on your domain for DNS spoofing protection
- Enable OCSP stapling on your TLS server to remove a CA roundtrip and protect user privacy
ADNS Records2 A records, 36 ms lookupPASS
| A | 3.223.15.136, 54.163.150.3 |
| AAAA | — |
| CNAME | crowdin.com |
| NS | ns-630.awsdns-14.net, ns-365.awsdns-45.com, ns-1716.awsdns-22.co.uk, ns-1437.awsdns-51.org |
| MX | 10 aspmx.l.google.com 20 alt2.aspmx.l.google.com 20 alt1.aspmx.l.google.com 30 aspmx3.googlemail.com 30 aspmx2.googlemail.com |
| TXT | SPF v=spf1 include:_spf.google.com include:mail.crowdin.com include:servers.mcsv.net... cursor-domain-verification-ja5jab=l6xFJlm7f6LRKedaq6QtUs0ll anthropic-domain-verification-bd6s69=60d95mcfNKRyKFREwnINXcf anthropic-domain-verification-wkv17e=1xGWZrk3WVzi8zZ8Murd1poU8 ahrefs-site-verification_e4fe0989e69379efbb46cf7779c2b9b6e14e29f36778153cf4bd5db... atlassian-domain-verification=RgaTXSIDEtOqgnC9DJ/zs39nh4OmpBfJi6tODHG43nl9Xb6qax... h1-domain-verification=YQxrcqy5r7QdR3yxBhDfg3kLEqZnC3yME1TNfiq1DwUDfpX4 google-site-verification=BNFZRZ7iSH0j_yvQ3EeGDi0VmBZNLehlLTCl19HL4Jc |
| CAA | Lookup not available with standard resolver |
A CNAME at the zone apex can break MX and NS records. Use ALIAS/ANAME or A records instead.
CNAME at the apex (example.com) breaks every other apex record (MX, TXT, NS) — DNS-protocol violation per RFC 1034.
Learn more ▾ ▴
RFC 1034 forbids CNAME alongside other records at the same name. Some DNS providers offer ALIAS / ANAME / flattened-CNAME records that work around this — use those instead. Otherwise apex-level CNAME breaks email (no MX), domain ownership verification (no TXT), and more.
Source: RFC 1034
CAA record lookup requires a specialized DNS resolver. This check will be available in a future update.
Informational: CAA (Certification Authority Authorization) records weren't checked in this scan.
ARedirect Chain1 redirect(s), 718 ms totalPASS
https://www.crowdin.com
296 ms · HTTP/1.1
https://crowdin.com/
422 ms · HTTP/1.1 FINAL
| # | URL | Status | Time | Protocol | Server |
|---|---|---|---|---|---|
| 1 | https://www.crowdin.com | 301 | 296 ms | HTTP/1.1 | nginx |
| 2 | https://crowdin.com/ | 200 | 422 ms | HTTP/1.1 | nginx |
See the visual redirect chain in the HTTP Probe tab →
A+Crawlabilityrobots.txt present, sitemap with 3 URLsPASS
User-agent: http://Mail.RU
Disallow: /
User-agent: Yandex
Disallow: /
User-agent: *
Disallow: /app
Disallow: /join
Disallow: /login
Disallow: /settings
Disallow: /backend
Disallow: /download
Disallow: /case-studies/*
Disallow: /*/js/lib/magic/*
Disallow: /blog/post/*
Disallow: /translate
Sitemap: https://crowdin.com/sitemap.xml
A+Domain Intelligencecrowdin.com — via GoDaddy.com, LLC, 17 years, 4 months old, hosted on AWSPASS
2402 days
February 7, 2033
227 days
Issued by Amazon
17 years, 4 months
Registered February 7, 2009
Not enabled
Protects against DNS spoofing
AWS
ASN AS14618
54.163.150.3
GoDaddy.com, LLC
Expiry timeline
Recommended actions
- Enable DNSSEC to protect visitors from DNS spoofing
DNSSEC protects against DNS spoofing attacks. While not required, enabling DNSSEC adds an additional layer of security. Contact your DNS provider to enable it.
Without DNSSEC, an attacker who can poison your DNS can hijack your domain — and SSL certs alone don't stop them.
Learn more ▾ ▴
DNSSEC adds cryptographic signatures to DNS records, preventing forged responses from poisoning resolver caches. Without it, an attacker who controls the network path can redirect your domain to a malicious server before any HTTPS handshake happens. Most modern registrars (Cloudflare, Google Domains, Route 53) enable it with one toggle.
Source: ICANN / RFC 4033