Domain report
attackanddefense.dev
attackanddefense.dev ranks in the top 0.14% of domains by connectivity (Common Crawl, cc-main-2026-jul-aug-sep), with 1 distinct host observed under it.
Connectivity
- Top percentile
- 0.14%
- 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://attackanddefense.dev/ answered with HTTP 200.
DNS records
- A
- 185.199.108.153
- 185.199.109.153
- 185.199.110.153
- 185.199.111.153
- AAAA
- 2606:50c0:8000::153
- 2606:50c0:8001::153
- 2606:50c0:8002::153
- 2606:50c0:8003::153
- MX
- No records found.
- NS
- ns1.markmonitor.com.
- ns2.markmonitor.com.
- ns3.markmonitor.com.
- ns4.markmonitor.com.
- ns5.markmonitor.com.
- ns6.markmonitor.com.
- ns7.markmonitor.com.
Live preview
This is a live, sandboxed embed of attackanddefense.dev — not a copy. What it shows can change any time the site itself does.
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=600
- Content-Encoding
- Not sent
Security
- Content-Security-Policy
- Not sent
- Strict-Transport-Security
- Not sent
- X-Frame-Options
- Not sent
- X-Content-Type-Options
- Not sent
- Referrer-Policy
- Not sent
- Permissions-Policy
- Not sent
Redirect chain
- 1.
http://attackanddefense.dev/HTTP 301→ https://attackanddefense.dev/
- 2.
https://attackanddefense.dev/HTTP 200
Meta tags
- Title
- Attack & Defense | A blog from the Firefox Application Security Team
- Description
- A blog from the Firefox Application Security Team
- Canonical
- https://attackanddefense.dev/
- Robots
- Not set
- Generator
- Jekyll v3.10.0
- Open Graph title
- Attack & Defense
- Open Graph description
- A blog from the Firefox Application Security Team
- Open Graph image
- Not set
- Open Graph type
- website
- Twitter card
- summary
- Twitter title
- Not set
- Twitter image
- Not set
robots.txt
attackanddefense.dev has no robots.txt.
Technology detected
Best-effort, based on a small set of well-known signals — this may be incomplete.
- Cloudflarecdn
Server: cloudflare
Related domains
Similar connectivity
Domains ranked just above and below it in the same snapshot.