Infrastructure
· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.BRedirect Chain1 redirect(s), 1143 ms totalREVIEW
https://sedo.com
571 ms · HTTP/1.1
https://sedo.com/us/
572 ms · HTTP/1.1 FINAL
| # | URL | Status | Time | Protocol | Server |
|---|---|---|---|---|---|
| 1 | https://sedo.com | 301 | 571 ms | HTTP/1.1 | cloudflare |
| 2 | https://sedo.com/us/ | 200 | 572 ms | HTTP/1.1 | cloudflare |
See the visual redirect chain in the HTTP Probe tab →
BTLS Certificate Expiry & Recommendations189 days until leaf cert expires — 4 issues to addressREVIEW
Certificate validity
Recommended actions
- Extend HSTS max-age to at least 31536000 (1 year) to meet the preload list criteria
- Add the preload directive and submit to hstspreload.org once max-age + includeSubDomains are in place
- 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
A+DNS Records2 A records, 8 ms lookupPASS
| A | 104.16.141.114, 104.16.140.114 |
| AAAA | 2606:4700::6810:8c72, 2606:4700::6810:8d72 |
| CNAME | — |
| NS | emily.ns.cloudflare.com, ridge.ns.cloudflare.com |
| MX | 10 smtp.google.com |
| TXT | MS=ms55056334 T3rgs27Olf3Lbgee5k7IXX5DKmM2n04EcYo4SNg0TjrreGvX+rnrTlH2CvmJ/I3D7RLcdzKsdtXE9Rvl... _globalsign-domain-verification=xJ2v0pyn3zUHVes0S7J4bIx3lwuX2PjSmXAe2n7BMK amazonses:VDUkXNdWJ2Q5GVWqVsYSnfhGIFzuuhqP4da64VaML64= anthropic-domain-verification-gy6wnc=xY46ihVCqLVyVaSdgbpKRKWXY apple-domain-verification=Pk1cOgY1ZNjFIRhx atlassian-domain-verification=FCDST1GQ0VvGyxjvxQroqvrJS29ScsaJeyIV6CIFJ3R8OXvCIO... atlassian-domain-verification=QcxPc4vuaZsCUz3cLrIH16dECUuWXE4HAj7ga7AKswkBnGdN1N... browserstack-domain-verification=b778765f-50d3-47d2-9afd-01a1078be5ed canva-site-verification=FdZnXKRpmM7cMpkWAkFtpg cloudflare-verify.sedo.com 392261755-193351576 figma-domain-verification=a3ddfd69785ee6f27ccae0e977ec3919827a57ed709c676396f67b... google-site-verification=8uJcQXW3LsFEqHiLpA18McpRT4bJS6eBQPFAQ4Kj7Ic google-site-verification=oh4IjwrGPpXM7tGUNiJ03BJjnjGsfvxoW8gVeCbZZ34 knowbe4-site-verification=ea92e091b44a2e728b98725e65e73528 miro-verification=af36c9d77426387eb63d0676fc57d2ed17cab1ca r3ccbsx7j9v9n8bvbm4dqgw73jm4x3xp rE85eeop7dd00eAFfc/HgrbUCrBX6FwJmxMlDxlnmgQ= slack-domain-verification=BPZEvKtLSInJuE7N59lov6L8PF7IpXq5d3JyTsaE SPF v=spf1 include:sedo_com._es.easydmarc.com ~all |
| CAA | Lookup not available with standard resolver |
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.
A+IPv6 ReadinessIPv6 reachable (1 ms)PASS
A+Crawlabilityrobots.txt present, sitemap with 12 URLsPASS
Sitemap: https://sedo.com/fileadmin/sitemaps/sitemap.xml
User-agent: *
Disallow: /datenbank
Disallow: /logs
Disallow: /img
Disallow: /cgi-bin
Disallow: /auction
Disallow: /search
Disallow: /auth
Disallow: /store
Allow: /search/details/
User-agent: Riddler
Disallow: /
- https://sedo.com/fileadmin/sitemaps/site...
- https://sedo.com/fileadmin/sitemaps/site...
- https://sedo.com/fileadmin/sitemaps/site...
- https://sedo.com/fileadmin/sitemaps/site...
- https://sedo.com/fileadmin/sitemaps/site...
- https://sedo.com/fileadmin/sitemaps/site...
- https://sedo.com/fileadmin/sitemaps/site...
- https://sedo.com/fileadmin/sitemaps/site...
- https://sedo.com/fileadmin/sitemaps/site...
- https://sedo.com/fileadmin/sitemaps/site...
- https://sedo.com/fileadmin/sitemaps/site...
- https://sedo.com/fileadmin/sitemaps/site...
A+URL Variantswww/non-www, trailing slash, HTTP→HTTPSPASS
www / non-www
Preferred variant: non-www
HTTP → HTTPS
Consistent
A+Domain Intelligencesedo.com — via World4You Internet Services GmbH, 27 years, 11 months oldPASS
58 days
September 10, 2026
189 days
Issued by Sectigo Limited
27 years, 11 months
Registered September 11, 1998
Not enabled
Protects against DNS spoofing
Unknown
2606:4700::6810:8c72
World4You Internet Services GmbH
Expiry timeline
Recommended actions
- Renew the domain or enable auto-renewal to prevent accidental expiry
- Enable DNSSEC to protect visitors from DNS spoofing
- Enable registrar lock (clientTransferProhibited) to block unauthorized domain transfers
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
The domain can be transferred without an unlock step. Enable registrar lock (clientTransferProhibited) in your registrar's control panel to protect against unauthorized or accidental transfers.
Without registrar lock, an attacker who phishes your registrar credentials can transfer the domain in minutes — total brand hijack.
Learn more ▾ ▴
Registrar lock (clientTransferProhibited, clientUpdateProhibited, clientDeleteProhibited) requires extra verification before any transfer/update/delete. Every major registrar offers it free. Combined with 2FA on your registrar account, it's the strongest defense against domain hijacking.
Source: ICANN / domain-security best practice