indexo.dev

concatenate.dev

.dev crawl

First seen 2026-04-11 · Last seen 2026-05-19 · ok HTTP/1.1 200 1158 ms crawled 2026-05-19

US · 103.224.182.253 · AS133618 Trellian Pty. Limited

Reputation 62/100 wrong cert weak security headers no dmarc policy

Classifying

HTML metadata

Title
concatenate.dev

Technology

Server
Apache

DNS records live

NS
  • ns1.abovedomains.com
  • ns2.abovedomains.com
MX
  • 10 alltheemails.com

Email authentication weak

SPF
v=spf1 ip6:fdcf:abda:4154::/48 -all
strict (-all)
DMARC
not published
DKIM
no key found at common selectors

Certificate (current) wrong cert

R12
from 2026-03-03 to 2026-06-01
Expires in 12 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 35/100 Checked over plain HTTP: http://concatenate.dev/

findings
  • checked over plain HTTP
  • missing Content Security Policy
  • missing frame protection
  • missing content type protection
  • missing Referrer Policy
  • missing Permissions Policy

Linked from (1)