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Domain report

polytechforum.com

polytechforum.com ranks in the top 0.60% of domains by connectivity (Common Crawl, cc-main-2026-jul-aug-sep), with 3 distinct hosts observed under it.

Explore polytechforum.com in the Web Graph

Connectivity

#797,292harmonic-centrality rank
Top percentile
0.60%
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://polytechforum.com/ answered with HTTP 200.

DNS records

A
  • 165.227.95.226
AAAA
No records found.
MX
No records found.
NS
  • ns3.digitalocean.com.
  • ns2.digitalocean.com.
  • ns1.digitalocean.com.

Live preview

Screenshot of polytechforum.com

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

Since polytechforum.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 (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, public
Content-Encoding
Not sent

Security

Content-Security-Policy
default-src 'self'; script-src 'self' 'unsafe-inline' https://ajax.googleapis.com https://cdn.jsdelivr.net https://www.googletagmanager.com https://www.google-analytics.com https://pagead2.googlesyndication.com https://adservice.google.com https://www.clarity.ms https://tpc.googlesyndication.com https://www.gstatic.com https://www.google.com https://imasdk.googleapis.com https://ep1.adtrafficquality.google https://ep2.adtrafficquality.google https://fundingchoicesmessages.google.com https://syndicatedsearch.goog https://partner.googleadservices.com https://cdn.polytechforum.com; style-src 'self' 'unsafe-inline' https://cdn.jsdelivr.net https://fonts.googleapis.com https://www.gstatic.com https://cdn.polytechforum.com; img-src 'self' data: blob: https: http:; font-src 'self' fonts.gstatic.com https://cdn.jsdelivr.net data: https://cdn.polytechforum.com; connect-src 'self' https://www.google-analytics.com https://www.googletagmanager.com https://pagead2.googlesyndication.com https://www.clarity.ms https://region1.analytics.google.com https://ep1.adtrafficquality.google https://ep2.adtrafficquality.google https://analytics.google.com https://region1.google-analytics.com https://stats.g.doubleclick.net https://csi.gstatic.com https://fundingchoicesmessages.google.com https://www.google.com https://adclick.g.doubleclick.net https://cdn.polytechforum.com; frame-src 'self' https://www.google.com https://tpc.googlesyndication.com https://googleads.g.doubleclick.net https://www.youtube.com https://pagead2.googlesyndication.com https://www.gstatic.com https://www.googletagmanager.com https://ep1.adtrafficquality.google https://ep2.adtrafficquality.google https://fundingchoicesmessages.google.com https://syndicatedsearch.goog; object-src 'none'; base-uri 'self'; form-action 'self'; frame-ancestors 'self'; report-uri /csp-report
Strict-Transport-Security
max-age=31536000; includeSubDomains
X-Frame-Options
SAMEORIGIN
X-Content-Type-Options
nosniff
Referrer-Policy
strict-origin-when-cross-origin
Permissions-Policy
Not sent

What each security header does

Redirect chain

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

    → https://polytechforum.com/

  2. 2.https://polytechforum.com/HTTP 301

    → https://www.polytechforum.com/

  3. 3.https://www.polytechforum.com/HTTP 200

Meta tags

Title
Welcome to Online Community for Engineers and Metalworking Enthusiasts - PolyTech Forum
Description
PolyTechForum.com website provides free, on-the-go reading and posting access to many engineering Usenet discussion groups, completely anonymously and without requiring registration
Canonical
https://www.polytechforum.com
Robots
Not set
Generator
Not set
Open Graph title
PolyTech Forum
Open Graph description
Not set
Open Graph image
Not set
Open Graph type
Not set
Twitter card
Not set
Twitter title
Not set
Twitter image
Not set

robots.txt

Disallow rules (User-agent: *)
9
Disallow rules (other agents)
94

Sitemap declared:

  • https://www.polytechforum.com/sitemap.xml

Technology detected

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

  • Cloudflarecdn

    Server: cloudflare

  • Google Analyticsanalytics

    Found "googletagmanager.com/gtag/js" in the page's HTML

Related domains

Similar connectivity

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