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checkmk.com

Unified Hybrid & Cloud IT Observability | Checkmk

Last scanned Jul 26, 2026, 3:19 PM

98

Overall score

Excellent

Summary

Bridge the gap between legacy and modern IT. This website uses Google Analytics hosted on IP-PROJECTS - Michael Sebastian Schinzel trading as IP-Projects GmbH & Co. KG, DE. SEO is excellent (100/100) and accessibility is excellent (100/100). Security scores excellent (100/100) and performance excellent (90/100).

Bridge the gap between legacy and modern IT. Checkmk offers unified observability for cloud, on-prem, and containers. Scalable, secure, and high-performance.

Germany
Hosted on IP-PROJECTS - Michael Sebastian Schinzel trading as IP-Projects GmbH & Co. KG, DE

Top issues to fix

2 issues found

  • 1 cookie without Secure/HttpOnly flags

    Security

    Set Secure and HttpOnly on session cookies so they can't leak over HTTP or be read by injected scripts.

  • 17 broken links on the page

    SEO

    Fix or remove broken links — they waste crawl budget and erode user trust.

100

SEO

0 issue(s) found

90

Performance

355 ms

100

Security

HTTPS & header checks

100

Accessibility

0 issue(s) found

Not enough scan history yet to show a trend — check back after this site has been re-scanned a few more times.

Organization

Company details published in this site's own structured data.

Bridge the gap between legacy and modern IT. Checkmk offers unified observability for cloud, on-prem, and containers. Scalable, secure, and high-performance.

Contact

Email, phone, and address published on this site's own pages.

Meta tags

Title
Unified Hybrid & Cloud IT Observability | Checkmk
Description
Bridge the gap between legacy and modern IT. Checkmk offers unified observability for cloud, on-prem, and containers. Scalable, secure, and high-performance.
Canonical
https://checkmk.com/
Language
en
Charset
UTF-8
Viewport
width=device-width, initial-scale=1.0, shrink-to-fit=no
Robots meta
Manifest
https://checkmk.com/manifest.json

OpenGraph & Twitter Card

OpenGraph

og:title
Unified Hybrid & Cloud IT Observability | Checkmk
og:description
Bridge the gap between legacy and modern IT. Checkmk offers unified observability for cloud, on-prem, and containers. Scalable, secure, and high-performance.
og:type
website
og:url
https://checkmk.com/

Twitter Card

twitter:card
summary_large_image
twitter:title
twitter:description

Technologies

Detected frameworks, languages, and tools.

Hosting & CDN

CDN provider
IP address
45.133.11.28
ASN
AS48314 (IP-PROJECTS - Michael Sebastian Schinzel trading as IP-Projects GmbH & Co. KG, DE)

DNS records

TypeValue
A
  • 45.133.11.28
AAAA
  • 2a0a:51c1:0:5::4
MX
  • alt3.aspmx.l.google.com
  • aspmx.l.google.com
  • alt2.aspmx.l.google.com
  • alt4.aspmx.l.google.com
  • alt1.aspmx.l.google.com
TXT
NS
  • ns.inwx.de
  • ns2.inwx.de
  • ns4.he.net
  • ns3.he.net
  • ns5.he.net
  • ns2.he.net
  • ns1.he.net
CAA
  • 0 issue "amazon.com"
  • 0 issue "pki.goog"
  • 0 issuewild ";"
  • 0 issue "letsencrypt.org"
CNAME
IPv6 supportYes

TLS / SSL certificate

Version
TLS 1.3
Issuer
Let's Encrypt
Subject
checkmk.com
Valid from
Jun 1, 2026
Valid to
Aug 30, 2026
Days until expiry
34
SAN domains
blog.checkmk.com, check-mk.com, check-mk.de, checkmk.com, checkmk.de, checkmk.it, conference.checkmk.com, features.checkmk.com, kb.checkmk.com, tribe29.com, www.check-mk.com, www.check-mk.de, www.checkmk.com, www.checkmk.de, www.checkmk.it, www.tribe29.com

Security headers

  • Strict-Transport-SecurityEnabled
  • Content-Security-PolicyEnabled
  • X-Frame-OptionsEnabled
  • X-Content-Type-OptionsEnabled
  • Referrer-PolicyEnabled
  • Permissions-PolicyMissing

Compression: gzip · 1 cookie(s) observed

Content & assets

Headings

H1 1 · H2 8 · H3 4

Links

68 internal · 21 external · 17 broken

Images

26 total · 0 missing alt

Scripts / Styles

9 scripts · 6 stylesheets

JS / CSS size

647 KB · 567 KB

Page size

243 KB

Robots.txt & Sitemap

robots.txt
Found
Disallow rules
39
sitemap.xml
Found
URLs in sitemap
-1

SEO issues

No SEO issues detected.

Accessibility issues

No accessibility issues detected.

Scan details

Requested URL
https://checkmk.com
Final URL
https://checkmk.com
HTTP status
200
HTTP version
HTTP/2
Response time
351 ms
HTML size
243 KB
Redirect chain
https://checkmk.com

See something wrong on this report? Request a correction

Frequently asked questions

What technology does checkmk.com use?
checkmk.com is built with jQuery, Google Analytics.
Is checkmk.com secure (HTTPS)?
Yes. checkmk.com uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Aug 30, 2026.
Who hosts checkmk.com?
checkmk.com is hosted on IP-PROJECTS - Michael Sebastian Schinzel trading as IP-Projects GmbH & Co. KG, DE.
What is checkmk.com's SEO score?
checkmk.com scored 100/100 for SEO in the latest analysis (excellent).
What is checkmk.com's overall website score?
checkmk.com has an overall SiteGraph score of 98/100, combining SEO, performance, security, and accessibility.