Domain report
jmap.io
jmap.io ranks in the top 0.32% of domains by connectivity (Common Crawl, cc-main-2026-jul-aug-sep), with 3 distinct hosts observed under it.
Connectivity
#432,628harmonic-centrality rank
- Top percentile
- 0.32%
- Hosts observed
- 3
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://jmap.io/ answered with HTTP 200.
DNS records
- A
- 185.199.108.153
- 185.199.109.153
- 185.199.110.153
- 185.199.111.153
- AAAA
- No records found.
- MX
- 10 us1-smtp.messagingengine.com.
- 20 us2-smtp.messagingengine.com.
- NS
- ns1.messagingengine.com.
- ns2.messagingengine.com.
Live preview
This is a live, sandboxed embed of jmap.io — 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://jmap.io/HTTP 301→ https://jmap.io/
- 2.
https://jmap.io/HTTP 200
Meta tags
- Title
- JSON Meta Application Protocol Specification (JMAP)
- Description
- JMAP is the open protocol that replaces IMAP (and CardDAV and CalDAV). It’s faster, simpler, more powerful, and built for how email works today.
- Canonical
- Not set
- Robots
- Not set
- Generator
- Not set
- Open Graph title
- JSON Meta Application Protocol Specification (JMAP)
- Open Graph description
- JMAP is the open protocol that replaces IMAP (and CardDAV and CalDAV). It’s faster, simpler, more powerful, and built for how email works today.
- Open Graph image
- https://jmap.io/images/og/home.png
- Open Graph type
- website
- Twitter card
- summary_large_image
- Twitter title
- Not set
- Twitter image
- Not set
robots.txt
- Disallow rules (User-agent: *)
- 0
- Disallow rules (other agents)
- 0
Sitemap declared:
https://jmap.io/sitemap.xml
Technology detected
Best-effort, based on a small set of well-known signals — this may be incomplete.
- Cloudflarecdn
Server: cloudflare
- Cloudflare Web Analyticsanalytics
Found "static.cloudflareinsights.com" in the page's HTML
Related domains
Similar connectivity
Domains ranked just above and below it in the same snapshot.