99%
confidence
Evidence (2 signals)
Header
Server: envoy
envoy
Header
Envoy upstream timing header
18
Tech stack of seznam.cz
1Technologies
1Categories
200HTTP Status
2520msScan Time
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AI builder check
No AI builder evidence found
None of the 33 fingerprints we track for 9 AI app builders (Lovable, Bolt.new, v0, Replit, Base44, Manus, Anything, Emergent and YouWare) appear on this page. That is not proof the site was coded by hand: code written with AI assistants such as Cursor, Claude Code or GitHub Copilot leaves no public trace, and builder markers can be removed after an export.
This check names the builder platform from public evidence. It does not measure how much of the code was written by AI. How the check works and how accurate it is
Detected technologies (1)
Website details
Network & TLS
IP address77.75.79.222
All resolved IPs77.75.79.222, 77.75.77.222, 2a02:598:2::1222, 2a02:598:a::79:222
Reverse DNSwww.seznam.cz
ProtocolHTTP/1.1
TLS issuerLet's Encrypt
Cert. expires
Dec 29, 2026 68 days
DNS records
Nameserversams.seznam.cz
ans.seznam.cz
Mail serversmx1.seznam.cz
mx2.seznam.cz
Security headers 3/6
strict-transport-securityPresent
content-security-policyPresent
x-content-type-optionsMissing
x-frame-optionsPresent
referrer-policyMissing
permissions-policyMissing
Page insights
LanguageCS
HTML size1.3 MB (deflate)
Resources10 scripts · 4 stylesheets · 198 images
Third-party hosts74 d32-a.sdn.cz, www.novinky.cz, www.super.cz, www.sport.cz, www.stream.cz, www.prozeny.cz, …
Open GraphPresent
RSS/Atom feedPresent
Raw HTTP Headers
x-ratelimit-remaining
58
x-ratelimit-reset
1792611838.942226
x-ratelimit-limit
64
vary
Accept-Encoding
cache-control
no-cache, no-store, must-revalidate
content-type
text/html; charset=UTF-8
pragma
no-cache
x-frame-options
SAMEORIGIN
content-security-policy
frame-ancestors 'self' *.doubleverify.com
content-encoding
deflate
date
Wed, 21 Oct 2026 19:43:58 GMT
x-envoy-upstream-service-time
18
server
envoy
strict-transport-security
max-age=63072000; includeSubDomains; preload
set-cookie
requestId=7T0MeOydvbhnxkDNanyt7LKgLcZBKz7klVAzZBOlv4aEqAr2wD4nhbFvhDZ1e/AFaZ48oKqZknNsJmrvTXynrniSS9PSvQyKd6f9rmjBugVw8R0MUw8PgGJq3zO7uPgVfqf53Dyhi9sQgoekQMrGyMrvR/DB/4P4l18RlBfI380=; Domain=.seznam.cz; HttpOnly; Secure; sznlbr=1YCP6r5NYGELOm8NCCr6C8Mw.bBiz80Qfrl6VzuTqLeT2_zU2SeEscrslLAKS9j0MTUQ; Ht
transfer-encoding
chunked