indexo.dev

checktls.com

.com crawl

First seen 2026-05-04 · Last seen 2026-05-11 · ok HTTP/1.1 200 8376 ms crawled 2026-05-11

US · 142.93.73.156 · AS14061 DigitalOcean, LLC

Reputation 95/100 weak security headers

Classifying

HTML metadata

Title
CheckTLS: The Email Encryption and Authentication Testing Authority
Description
Secure Email Test TLS Compliance
Language
en-US

Technology

Server
Apache
Analytics
  • Google Tag Manager
Fonts
  • Google Fonts

Third-party hosts loaded (5)

  • cse.google.com×1
  • fonts.googleapis.com×1
  • seal.godaddy.com×1
  • translate.google.com×1
  • www.googletagmanager.com×1

Registration

Registrar
GoDaddy.com, LLC
Created
2010-01-08
Expires
2031-01-08 1695 days left
Updated
2026-01-08
Name servers
  • ns1-do.checktls.com
  • ns2-do.checktls.com

DNS records live

NS
  • ns1-do.checktls.com
  • ns2-do.checktls.com
MX
  • 10 mail14.checktls.com
  • 20 mail11.checktls.com
  • 20 mail12.checktls.com
TXT
  • google-site-verification=AsgP5ibWfjEqqi7dy_fN_DWPtzfYcwn0ETAW96ICc04

Email authentication strong

SPF
v=spf1 a mx a:whitelist.checktls.com a:spf.checktls.com -all
strict (-all)
DMARC
v=DMARC1; p=quarantine
policy: quarantine
DKIM
  • default: v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCkZxaMIXWH8NqafDS6Kzr6eNwlofpu+50Y+t9GpgXnCgt3mZTeoFr4kXcxNNfibzDHafcm8aT+Es3t1TOxlh…
selectors probed

Certificate (current)

Go Daddy Secure Certificate Authority - G2
from 2025-10-07 to 2026-11-08
Expires in 174 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 45/100 Checked live page: https://www.checktls.com/

present
  • strict-transport-security
findings
  • short HSTS max-age
  • missing Content Security Policy
  • missing frame protection
  • missing content type protection
  • missing Referrer Policy
  • missing Permissions Policy
Header values
strict-transport-security
max-age=300; includeSubDomains

Links to (4)

Linked from (1)