indexo.dev

html5test.co

.co crawl

First seen 2026-04-14 · Last seen 2026-05-06 · ok HTTP/1.1 200 376 ms crawled 2026-05-08

US · 185.199.108.153 · AS54113 Fastly, Inc.

Reputation 87/100 weak security headers no dmarc policy

Classifying

HTML metadata

Title
HTML5test - How well does your browser support HTML5?
Language
en

Open Graph

url
https://html5test.co/
title
The HTML5 test - How well does your browser support HTML5?
site name
HTML5test.co
description
The HTML5 test score is an indication of how well your browser supports the upcoming HTML5 standard and related specifications. How well does your browser support HTML5?

Technology

CDN
Fastly
Server
GitHub.com

Social

DNS records live

NS
  • dns102.ovh.net
  • ns102.ovh.net
MX
  • 1 mx1.mail.ovh.net
  • 100 mx3.mail.ovh.net
  • 5 mx2.mail.ovh.net
TXT
  • 1|www.html5test.co

Email authentication weak

SPF
v=spf1 include:mx.ovh.com -all
strict (-all)
DMARC
not published
DKIM
no key found at common selectors

Certificate (current)

R13
from 2026-04-29 to 2026-07-28
Expires in 70 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://html5test.co/

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

Links to (4)

Linked from (1)