Domain report
brainer.app
brainer.app ranks in the top 0.17% of domains by connectivity (Common Crawl, cc-main-2026-jul-aug-sep), with 1 distinct host observed under it.
Connectivity
- Top percentile
- 0.17%
- 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://brainer.app/ answered with HTTP 200.
DNS records
- A
- 23.102.12.43
- AAAA
- No records found.
- MX
- 10 zimbra.brainer.app.
- NS
- ns17.domaincontrol.com.
- ns18.domaincontrol.com.
- AS
- Server in network MICROSOFT-CORP-MSN-AS-BLOCK, AS8075 · United States23.102.12.0/24, which holds 23.102.12.43
Live preview
This is a live, sandboxed embed of brainer.app — 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
- private
- 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://brainer.app/HTTP 301→ https://brainer.app/
- 2.
https://brainer.app/HTTP 200
Meta tags
- Title
- Brainer • research easier • free Chrome extension
- Description
- Save, organize and comment links, photos, citations, prices, addresses. Collaborate in real-time.
- Canonical
- Not set
- Robots
- Not set
- Generator
- Not set
- Open Graph title
- Brainer - research easier
- Open Graph description
- Save, organize and comment links, photos, citations, prices, addresses. Collaborate in real-time.
- Open Graph image
- https://brainer.app/Images/promo-1200x630.png
- Open Graph type
- website
- Twitter card
- summary_large_image
- Twitter title
- Brainer - research easier
- Twitter image
- https://brainer.app/Images/promo-1200x630.png
robots.txt
brainer.app has no robots.txt.
Technology detected
Best-effort, based on a small set of well-known signals — this may be incomplete.
- Cloudflarecdn
Server: cloudflare
- ASP.NETframework
X-Powered-By: ASP.NET
- Google Analyticsanalytics
Found "googletagmanager.com/gtag/js" in the page's HTML
Related domains
Similar connectivity
Domains ranked just above and below it in the same snapshot.