a0.dev

.dev crawl

First seen 2026-04-14 · Last seen 2026-05-06 · ok HTTP/1.1 200 1834 ms crawled 2026-05-08

US · 76.76.21.21 · AS16509 Amazon.com, Inc.

Reputation 94/100 dmarc monitor-only

Classifying

HTML metadata

Title
a0.dev - Ship Mobile Apps to App Store & Google Play with AI
Description
World's fastest iOS & Android app builder. Production-ready mobile apps that deploy directly to App Store & Google Play in minutes.

Open Graph

title
a0.dev - Ship Mobile Apps to App Store & Google Play with AI
description
World's fastest iOS & Android app builder. Production-ready mobile apps that deploy directly to App Store & Google Play in minutes.

Technology

CDN
Vercel
CMS
Next.js
Analytics
  • Google Tag Manager

Third-party hosts loaded (5)

  • nabdgzjpwhkjfimljnql.supabase.co×39
  • pbs.twimg.com×6
  • accounts.google.com×1
  • www.facebook.com×1
  • www.googletagmanager.com×1

Social

DNS records live

NS
  • lamar.ns.cloudflare.com
  • zelda.ns.cloudflare.com
MX
  • 1 smtp.google.com
TXT
  • brevo-code:656e8ec7eada5c3d03bd313c938a68cf
  • google-site-verification=u_yEUIA9eGBD-Hk0eedUdF7TX3ZZ1T1LvjIRDqU1QGw
  • google-site-verification=vXA7TNk8fP5GTbVPd2-m_Mtgr3KoejS4S2HWL5nzl5A

Email authentication partial

SPF
v=spf1 include:spf.efwd.registrar-servers.com ~all
softfail (~all)
DMARC
v=DMARC1; p=none; rua=mailto:rua@dmarc.brevo.com
policy: none (monitoring only)
DKIM
no key found at common selectors

Certificate (current)

R12
from 2026-03-27 to 2026-06-25
Expires in 37 days

HTTP security headers

Header hygiene 70/100 Checked live page: https://a0.dev/

present
  • strict-transport-security
  • content-security-policy
findings
  • missing frame protection
  • missing content type protection
  • missing Referrer Policy
  • missing Permissions Policy
Header values
content-security-policy
frame-ancestors 'self'; upgrade-insecure-requests;
strict-transport-security
max-age=63072000

Links to (3)

Linked from (2)