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Domain report

devfest.cz

devfest.cz ranks in the top 0.077% of domains by connectivity (Common Crawl, cc-main-2026-jul-aug-sep), with 12 distinct hosts observed under it.

Explore devfest.cz in the Web Graph

Connectivity

#103,071harmonic-centrality rank
Top percentile
0.077%
Hosts observed
12

From the Common Crawl cc-main-2026-jul-aug-sep hyperlink graph, 133,241,980 domains total. What this rank means

HTTPS reachability

200HTTP status

https://devfest.cz/ answered with HTTP 200.

DNS records

A
  • 199.36.158.100
AAAA
No records found.
MX
  • 20 alt1.aspmx.l.google.com.
  • 20 alt2.aspmx.l.google.com.
  • 30 aspmx2.googlemail.com.
  • 30 aspmx3.googlemail.com.
  • 30 aspmx4.googlemail.com.
  • 30 aspmx5.googlemail.com.
  • 10 aspmx.l.google.com.
NS
  • ns.wedos.net.
  • ns.wedos.cz.
  • ns.wedos.eu.
  • ns.wedos.com.

Live preview

Screenshot of devfest.cz

This site sends "X-Frame-Options: DENY", which blocks embedding it here.

Since devfest.cz can't be embedded live, this is a captured screenshot instead — a snapshot from whenever it was last rendered, not necessarily this exact moment.

Domain registration (WHOIS / RDAP)

RDAP lookup failed (HTTP 429).

How to read WHOIS and RDAP data

SSL certificate

Certificate Transparency lookup failed (HTTP 429).

How to check when a certificate expires

HTTP & security headers

Response

Server
cloudflare
Content-Type
text/html; charset=utf-8
Cache-Control
max-age=3600
Content-Encoding
Not sent

Security

Content-Security-Policy
frame-ancestors 'none'
Strict-Transport-Security
max-age=31536000; includeSubDomains
X-Frame-Options
DENY
X-Content-Type-Options
nosniff
Referrer-Policy
strict-origin-when-cross-origin
Permissions-Policy
camera=(), microphone=(), geolocation=(), payment=(), usb=()

What each security header does

Redirect chain

  1. 1.http://devfest.cz/HTTP 301

    → https://devfest.cz/

  2. 2.https://devfest.cz/HTTP 200

Meta tags

Title
DevFest.cz 2026 — Prague Developer Conference
Description
DevFest.cz 2026 — Prague's developer conference & festival: AI agents, generative UI, cloud & backends, mobile & web accessibility, and the humans behind it. 30 October 2026. Tickets on sale now.
Canonical
https://devfest.cz
Robots
index, follow
Generator
Astro v7.3.8
Open Graph title
DevFest.cz 2026 — Prague Developer Conference
Open Graph description
DevFest.cz 2026 — Prague's developer conference & festival: AI agents, generative UI, cloud & backends, mobile & web accessibility, and the humans behind it. 30 October 2026. Tickets on sale now.
Open Graph image
https://devfest.cz/og-image.jpg?v=2eccabcbef
Open Graph type
website
Twitter card
summary_large_image
Twitter title
DevFest.cz 2026 — Prague Developer Conference
Twitter image
https://devfest.cz/og-image.jpg?v=2eccabcbef

robots.txt

Disallow rules (User-agent: *)
0
Disallow rules (other agents)
0

Sitemap declared:

  • https://devfest.cz/sitemap-index.xml

Technology detected

Best-effort, based on a small set of well-known signals — this may be incomplete.

  • Cloudflarecdn

    Server: cloudflare

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