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Domain report

certfa.com

certfa.com ranks in the top 0.11% of domains by connectivity (Common Crawl, cc-main-2026-jul-aug-sep), with 3 distinct hosts observed under it.

Explore certfa.com in the Web Graph

Connectivity

#140,479harmonic-centrality rank
Top percentile
0.11%
Hosts observed
3

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://certfa.com/ answered with HTTP 200.

DNS records

A
  • 172.66.40.117
  • 172.66.43.139
AAAA
  • 2606:4700:3108::ac42:2875
  • 2606:4700:3108::ac42:2b8b
MX
  • 1 aspmx.l.google.com.
  • 5 alt1.aspmx.l.google.com.
  • 5 alt2.aspmx.l.google.com.
  • 10 alt3.aspmx.l.google.com.
  • 10 alt4.aspmx.l.google.com.
NS
  • dora.ns.cloudflare.com.
  • chris.ns.cloudflare.com.

Live preview

Screenshot of certfa.com

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

Since certfa.com 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: The operation was aborted due to timeout

How to check when a certificate expires

HTTP & security headers

Response

Server
cloudflare
Content-Type
text/html; charset=utf-8
Cache-Control
max-age=300
Content-Encoding
Not sent

Security

Content-Security-Policy
base-uri 'self'; default-src 'none'; script-src 'self' 'strict-dynamic' 'sha256-Le6t5+cAC9hLDHI8ZAxO40ktRGXa7+TbZEKDdWgD66w=' 'sha256-hhHCYT1GLYDGWmlRcZRTmvuUVIQfrsbJQrYakd+DK/g='; script-src-elem 'self' 'sha256-Le6t5+cAC9hLDHI8ZAxO40ktRGXa7+TbZEKDdWgD66w=' 'sha256-hhHCYT1GLYDGWmlRcZRTmvuUVIQfrsbJQrYakd+DK/g='; style-src 'self' 'sha256-hqigSVylsNLpTDG9TUM96L6OCMYeD7uVgR76wbrIhMk=' 'sha256-6BAeCbgAMmkowvGjPh/T8sFy0KB0I0Ui7nu83O5Mi3Q=' 'sha256-BzrhAcB+6MydZJJRjc04k0UlhT0v9xY2S381wr8qHM8=' 'sha256-TyNUDnhSZIj6eZZqS6qqchxBN4+zTRUU+TkPeIxxT1I=' 'sha256-F0PK6PAy9scD/WKLSrTVdHR4RvCgWSfMMsUPphX1qw4='; media-src 'self' https://d33wubrfki0l68.cloudfront.net; font-src 'self'; worker-src 'self'; img-src 'self' data:; connect-src 'self'; manifest-src 'self'; object-src 'none'; frame-ancestors 'self'; form-action 'self'; frame-src 'self'; upgrade-insecure-requests; report-to default;
Strict-Transport-Security
max-age=31536000; includeSubDomains; preload
X-Frame-Options
SAMEORIGIN
X-Content-Type-Options
nosniff
Referrer-Policy
no-referrer
Permissions-Policy
interest-cohort=(), accelerometer=(), camera=(), geolocation=(), gyroscope=(), magnetometer=(), microphone=(), payment=(), usb=()

What each security header does

Redirect chain

  1. 1.http://certfa.com/HTTP 301

    → https://certfa.com/

  2. 2.https://certfa.com/HTTP 200

Meta tags

Title
امنیت و حریم خصوصی در دنیای دیجیتال - سرتفا
Description
مطالب آموزشی و اطلاعات مربوط به امنیت سایبری و حریم خصوصی در دنیای دیجیتال به‌همراه اخبار مرتبط با انتشار بدافزارها و باج‌افزارها، نشت اطلاعات، آسیب‌پذیری‌ها و حملات سایبری در وب‌سایت سرتفا...
Canonical
https://certfa.com/
Robots
index,follow,max-image-preview:large
Generator
Not set
Open Graph title
Not set
Open Graph description
Not set
Open Graph image
https://certfa.com/res/lib/meta/cover.jpg
Open Graph type
Not set
Twitter card
summary_large_image
Twitter title
Not set
Twitter image
https://certfa.com/res/lib/meta/cover.jpg

robots.txt

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

Sitemap declared:

  • https://certfa.com/sitemaps/*

Technology detected

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

  • Cloudflarecdn

    Server: cloudflare

Related domains

Similar connectivity

Domains ranked just above and below it in the same snapshot.