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Domain report

cem.com

cem.com ranks in the top 0.45% of domains by connectivity (Common Crawl, cc-main-2026-jul-aug-sep), with 7 distinct hosts observed under it.

Explore cem.com in the Web Graph

Connectivity

#602,660harmonic-centrality rank
Top percentile
0.45%
Hosts observed
7

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

DNS records

A
  • 34.197.95.2
  • 52.20.54.86
AAAA
No records found.
MX
  • 10 cem-com.mail.protection.outlook.com.
NS
  • ns0.dnsmadeeasy.com.
  • ns1.dnsmadeeasy.com.
  • ns2.dnsmadeeasy.com.
  • ns3.dnsmadeeasy.com.
  • ns4.dnsmadeeasy.com.

Live preview

Screenshot of cem.com

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

Since cem.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)

Registrar
Network Solutions, LLC
Registered
1997-05-22
Expires
2028-05-23
Last changed
2025-12-24

Nameservers: NS0.DNSMADEEASY.COM, NS1.DNSMADEEASY.COM, NS2.DNSMADEEASY.COM, NS3.DNSMADEEASY.COM, NS4.DNSMADEEASY.COM

Status: client transfer prohibited

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=0, must-revalidate, no-cache, no-store
Content-Encoding
Not sent

Security

Content-Security-Policy
upgrade-insecure-requests;
Strict-Transport-Security
max-age=31536000
X-Frame-Options
SAMEORIGIN, SAMEORIGIN
X-Content-Type-Options
nosniff
Referrer-Policy
Not sent
Permissions-Policy
Not sent

What each security header does

Redirect chain

  1. 1.http://cem.com/HTTP 302

    → https://cem.com/

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

Meta tags

Title
CEM Corporation
Description
CEM is the leading provider of microwave instrumentation for analytical and synthetic chemistry applications. Major application areas include acid digestion for elemental analysis, compositional testing of food products, peptide synthesis, and chemical synthesis.
Canonical
https://cem.com/
Robots
INDEX,FOLLOW
Generator
Not set
Open Graph title
Not set
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: *)
37
Disallow rules (other agents)
0

Sitemaps declared:

  • https://cem.com/sitemap.xml
  • https://cem.com/sitemap_de.xml
  • https://cem.com/sitemap_it.xml
  • https://cem.com/sitemap_cn.xml
  • https://cem.com/sitemap_fr.xml
  • https://cem.com/sitemap_ja.xml
  • https://cem.com/sitemap_es.xml
  • https://cem.com/sitemap_pt.xml
  • https://cem.com/sitemap.xml
  • https://cem.com/sitemap_de.xml
  • https://cem.com/sitemap_it.xml
  • https://cem.com/sitemap_cn.xml
  • https://cem.com/sitemap_fr.xml
  • https://cem.com/sitemap_ja.xml
  • https://cem.com/sitemap_es.xml
  • https://cem.com/sitemap_pt.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

  • PHPother

    Cookie set: PHPSESSID

Related domains

Similar connectivity

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