indexo.dev

mathiasbynens.be

.be crawl

First seen 2026-05-10 · Last seen 2026-05-13 · ok HTTP/1.1 200 5185 ms crawled 2026-05-16

NL · 83.137.145.144 · AS31477 Duocast B.V.

Reputation 92/100 no dmarc policy

sector tech type homepage

HTML metadata

Title
Mathias Bynens
Description
Mathias Bynens is a web standards enthusiast currently working on Chrome at Google.
Language
en
Feeds

Technology

Server
Apache

Third-party hosts loaded (2)

  • ajax.googleapis.com×1
  • gravatar.com×1

Social

DNS records live

NS
  • ns1.exsilia.net
  • ns2.exsilia.net
MX
Show 6 MX records
  • 10 aspmx.l.google.com
  • 20 alt2.aspmx.l.google.com
  • 30 aspmx2.googlemail.com
  • 30 aspmx3.googlemail.com
  • 30 aspmx4.googlemail.com
  • 30 aspmx5.googlemail.com

Email authentication weak

SPF
v=spf1 include:_spf.google.com ip4:83.137.145.0/24 ip6:2a01:1b0:7999:402::0/24 ~all
softfail (~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 70/100 Checked live page: https://mathiasbynens.be/

present
  • strict-transport-security
  • x-frame-options
  • x-content-type-options
findings
  • missing Content Security Policy
  • missing Referrer Policy
  • missing Permissions Policy
Header values
x-frame-options
DENY
x-content-type-options
nosniff
strict-transport-security
max-age=15768000; includeSubDomains

Links to (4)

Linked from (3)