indexo.dev

mailtag.io

.io crawl

First seen 2026-04-15 · Last seen 2026-05-10 · ok HTTP/1.1 200 1271 ms crawled 2026-05-10

US · 18.66.122.14 · AS16509 Amazon.com, Inc.

Reputation 95/100 weak security headers

Classifying

HTML metadata

Title
MailTag
Description
Mailtag for Gmail: Free email tracker, schedule (send later), Automated email followups and more

Technology

CDN
Amazon CloudFront
Server
AmazonS3
CMS
Next.js

Social

Contact

Email

DNS records live

NS
  • emely.ns.cloudflare.com
  • james.ns.cloudflare.com
MX
  • 1 aspmx.l.google.com
  • 10 alt3.aspmx.l.google.com
  • 10 alt4.aspmx.l.google.com
  • 5 alt1.aspmx.l.google.com
  • 5 alt2.aspmx.l.google.com
TXT
Show 4 TXT records
  • google-site-verification=zm48_5datBM-2ebmSiDL9rMKOh434yE8YRFUWpMVc9M
  • google-site-verification=_K6LML-6KsSQAHkyphuQFsmV9o7XUJY1E1j3cdhg2nw
  • google-site-verification=qGzDbcETUCUlOx4rSjyBMPfi6rV71K-aLqzqGU6djgo
  • google-site-verification=xGQHQeABd3DebaTl1rkN6FplI8CJoFyIG5tHrz-7KxM

Email authentication strong

SPF
v=spf1 ip4:54.186.178.151 ip4:52.25.167.20 include:dev-env-api.mailtag.io include:_spf.google.com -all
strict (-all)
DMARC
v=DMARC1; p=reject; pct=100
policy: reject (enforced)
DKIM
Show 4 DKIM selectors
  • google: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAjQrLEHEbzeF7znHXqWUdPoCtKw/gfTL6tMoeEgniAdXwz5BvorEte20JixmT9dohUOD7/ZK2BwUmJu…
  • k1: k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDbNrX2cY/GUKIFx2G/1I00ftdAj713WP9AQ1xir85i89sA2guU0ta4UX1Xzm06XIU6iBP41VwmPwBGRNofhBVR+e6WHUo…
  • s1: k=rsa; t=s; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA6IEXy7NWX53xktCEa48Nr8hY6moNf7k7pQTl5DUpKfKFE+AWRwbPOeSgCdl3lttOhvE/vH4R5HIHne0nV2…
  • s2: k=rsa; t=s; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDDw02VhtsTkkHXdY0FUSMxmhLCrF+SG9ibOpvmN9LeRTQenqhd7iU2fP6oX9Nu6pa6ETS6pTrQzOqiA37gzfBUe2…
selectors probed

Certificate (current)

Amazon RSA 2048 M03
from 2025-06-24 to 2026-07-24
Expires in 65 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://mailtag.io/

findings
  • missing HSTS
  • missing Content Security Policy
  • missing frame protection
  • missing content type protection
  • missing Referrer Policy
  • missing Permissions Policy

Links to (7)

Linked from (1)