Domain report
checkmk.com
checkmk.com ranks in the top 0.020% of domains by connectivity (Common Crawl, cc-main-2026-jul-aug-sep), with 22 distinct hosts observed under it.
Connectivity
- Top percentile
- 0.020%
- Hosts observed
- 22
From the Common Crawl cc-main-2026-jul-aug-sep hyperlink graph, 133,241,980 domains total. What this rank means
HTTPS reachability
https://checkmk.com/ answered with HTTP 200.
DNS records
- A
- 45.133.11.28
- AAAA
- 2a0a:51c1:0:5::4
- 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
- ns.inwx.de.
- ns1.he.net.
- ns2.he.net.
- ns2.inwx.de.
- ns3.he.net.
- ns4.he.net.
- ns5.he.net.
Live preview
This site sends "X-Frame-Options: SAMEORIGIN", which blocks embedding it here.
Since checkmk.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).
SSL certificate
Certificate Transparency lookup failed (HTTP 429).
HTTP & security headers
Response
- Server
- cloudflare
- Content-Type
- text/html; charset=UTF-8
- Cache-Control
- max-age=86400, s-maxage=86400
- Content-Encoding
- Not sent
Security
- Content-Security-Policy
- default-src 'self' 'unsafe-eval' 'unsafe-inline' blob: data: https://cdn.ablyft.com https://b2bjsstore.s3.us-west-2.amazonaws.com https://s3-us-west-2.amazonaws.com https://*.liadm.com https://ddwl4m2hdecbv.cloudfront.net https://rp.liadm.com https://idx.liadm.com https://b-code.liadm.com/lc2.js https://res.cloudinary.com https://survey.survicate.com https://surveys-static.survicate.com https://surveys-static-prd.survicate-cdn.com https://survey-prd.survicate-cdn.com https://*.varify.io https://*.checkmk.com https://checkmk.com https://buttons.github.io https://*.clickcease.com https://*.omappapi.com https://*.usemessages.com https://*.doubleclick.net https://*.fontawesome.com https://*.youtube.com https://*.hubspot.com https://*.hsappstatic.net https://*.buzzsprout.com https://*.gstatic.com https://*.googleoptimize.com https://*.googleadservices.com https://*.googleapis.com https://*.google.de https://*.iconnode.com https://*.google.com https://*.licdn.com https://*.bing.com https://*.bing.net https://www.gstatic.com https://*.hs-scripts.com https://*.hsforms.com https://*.hsforms.net https://www.googletagmanager.com https://*.hotjar.com https://*.cookiefirst.com https://*.hsadspixel.net https://*.hs-analytics.net https://*.hs-banner.com https://*.google-analytics.com https://*.analytics.google.com https://*.linkedin.com https://px.ads.linkedin.com https://*.adsymptotic.com chart.googleapis.com;font-src 'self' data: https://surveys-static.survicate.com https://surveys-static-prd.survicate-cdn.com https://*.fontawesome.com https://fonts.gstatic.com;frame-src 'self' https://*.g2.com https://*.sli.do https://*.youtube.com https://*.youtube-nocookie.com https://*.hsforms.com https://*.hsforms.net https://*.hubspot.com https://*.hotjar.com https://checkmk.com https://*.buzzsprout.com https://*.vimeo.com https://*.google.com https://www.googletagmanager.com;object-src 'none';connect-src 'self' blob: https://alocdn.com/c/vn3d8u2u/a/xtarget/p.json https://*.liadm.com https://a.usbrowserspeed.com https://pro.ip-api.com https://9xgnrndqve.execute-api.us-west-2.amazonaws.com https://www.googletagmanager.com https://static.hsappstatic.net https://respondent.survicate.com https://hv.survicate.com https://surveys-static-prd.survicate-cdn.com https://survey.survicate.com https://survey-prd.survicate-cdn.com https://production-respondent-uploads.s3.eu-west-1.amazonaws.com https://*.varify.io https://checkmk.com https://*.checkmk.com https://api.github.com https://*.doubleclick.net https://*.google-analytics.com https://*.analytics.google.com https://*.googlesyndication.com https://*.googleadservices.com https://*.hsforms.com https://*.iconnode.com https://*.cookiefirst.com https://*.google.com https://*.googleapis.com https://*.hubapi.com https://*.hubspot.com https://*.omappapi.com https://px.ads.linkedin.com https://*.bing.com https://*.bing.net https://*.hotjar.com https://*.hotjar.io wss://*.hotjar.com https://*.oribi.io;frame-ancestors 'self' https://*.checkmk.com https://*.tribe29.com https://*.docker.localhost:8443; report-uri https://report.centralcsp.com/6a4cba616d4099ebd842f4f6; report-to csp-endpoint;
- Strict-Transport-Security
- max-age=31536000; includeSubdomains; preload
- X-Frame-Options
- SAMEORIGIN
- X-Content-Type-Options
- nosniff
- Referrer-Policy
- strict-origin-when-cross-origin
- Permissions-Policy
- Not sent
Redirect chain
- 1.
http://checkmk.com/HTTP 301→ https://checkmk.com/
- 2.
https://checkmk.com/HTTP 200
Meta tags
- Title
- Full-Stack Monitoring and Observability for Hybrid IT | Checkmk
- Description
- Checkmk is the full-stack monitoring and observability platform for hybrid environments – it discovers and monitors everything you run, in the cloud and on-premises.
- Canonical
- https://checkmk.com/
- Robots
- Not set
- Generator
- Not set
- Open Graph title
- Full-Stack Monitoring and Observability for Hybrid IT | Checkmk
- Open Graph description
- Checkmk is the full-stack monitoring and observability platform for hybrid environments – it discovers and monitors everything you run, in the cloud and on-premises.
- Open Graph image
- https://checkmk.com/packages/tribe29_core/themes/checkmk/images/share_image.png
- Open Graph type
- website
- Twitter card
- summary_large_image
- Twitter title
- Not set
- Twitter image
- Not set
robots.txt
- Disallow rules (User-agent: *)
- 39
- Disallow rules (other agents)
- 0
Sitemap declared:
https://checkmk.com/sitemap.xml
Technology detected
Best-effort, based on a small set of well-known signals — this may be incomplete.
- Cloudflarecdn
Server: cloudflare
- Google Tag Manageranalytics
Found "googletagmanager.com/gtm.js" in the page's HTML
Related domains
Similar connectivity
Domains ranked just above and below it in the same snapshot.