Domain report
kerneltools.dev
kerneltools.dev ranks in the top 0.27% of domains by connectivity (Common Crawl, cc-main-2026-jul-aug-sep), with 1 distinct host observed under it.
Connectivity
- Top percentile
- 0.27%
- Hosts observed
- 1
From the Common Crawl cc-main-2026-jul-aug-sep hyperlink graph, 133,241,980 domains total. What this rank means
HTTPS reachability
https://kerneltools.dev/ answered with HTTP 200.
DNS records
- A
- 172.67.192.36
- 104.21.73.204
- AAAA
- 2606:4700:3037::6815:49cc
- 2606:4700:3033::ac43:c024
- MX
- 4 route3.mx.cloudflare.net.
- 65 route1.mx.cloudflare.net.
- 81 route2.mx.cloudflare.net.
- NS
- drake.ns.cloudflare.com.
- ligia.ns.cloudflare.com.
Live preview
This site sends "X-Frame-Options: DENY", which blocks embedding it here.
Since kerneltools.dev 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
- public, max-age=0, must-revalidate
- Content-Encoding
- Not sent
Security
- Content-Security-Policy
- default-src 'self'; script-src 'self' 'unsafe-inline' 'wasm-unsafe-eval' https://pagead2.googlesyndication.com https://partner.googleadservices.com https://tpc.googlesyndication.com https://adservice.google.com https://*.adtrafficquality.google https://fundingchoicesmessages.google.com https://challenges.cloudflare.com; style-src 'self' 'unsafe-inline'; img-src 'self' data: blob: https:; connect-src 'self' https://pagead2.googlesyndication.com https://adservice.google.com https://*.adtrafficquality.google https://fundingchoicesmessages.google.com https://challenges.cloudflare.com https://api.binance.com https://api.alternative.me https://ludo.kerneltools.dev wss://ludo.kerneltools.dev https://huggingface.co https://*.huggingface.co https://*.hf.co; frame-src 'self' https://googleads.g.doubleclick.net https://tpc.googlesyndication.com https://www.google.com https://*.adtrafficquality.google https://fundingchoicesmessages.google.com https://challenges.cloudflare.com; media-src 'self' blob:; object-src 'none'; base-uri 'self'; form-action 'self';
- Strict-Transport-Security
- max-age=0; includeSubDomains; preload
- X-Frame-Options
- DENY
- X-Content-Type-Options
- nosniff
- Referrer-Policy
- strict-origin-when-cross-origin
- Permissions-Policy
- camera=(self), microphone=(self), geolocation=(), payment=(), usb=()
Redirect chain
- 1.
http://kerneltools.dev/HTTP 301→ https://kerneltools.dev/
- 2.
https://kerneltools.dev/HTTP 200
Meta tags
- Title
- PDF Tools, Developer Utilities & Calculators | Kernel Tools
- Description
- Edit and merge PDFs, encode Base64, format JSON, test APIs, calculate finances and split expenses. Explore practical online tools and developer extensions by Kernel.
- Canonical
- https://kerneltools.dev/
- Robots
- index, follow
- Generator
- Not set
- Open Graph title
- PDF Tools, Developer Utilities & Calculators | Kernel Tools
- Open Graph description
- Edit and merge PDFs, encode Base64, format JSON, test APIs, calculate finances and split expenses. Explore practical online tools and developer extensions by Kernel.
- Open Graph image
- https://kerneltools.dev/og/home.jpg
- Open Graph type
- website
- Twitter card
- summary_large_image
- Twitter title
- PDF Tools, Developer Utilities & Calculators | Kernel Tools
- Twitter image
- https://kerneltools.dev/og/home.jpg
robots.txt
- Disallow rules (User-agent: *)
- 2
- Disallow rules (other agents)
- 0
Sitemap declared:
https://kerneltools.dev/sitemap.xml
Technology detected
Best-effort, based on a small set of well-known signals — this may be incomplete.
- Cloudflarecdn
Server: cloudflare
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Similar connectivity
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