indexo.dev

nerdy.dev

.dev crawl

First seen 2026-04-11 · Last seen 2026-05-19 · ok HTTP/1.1 200 1679 ms crawled 2026-05-18

US · 69.67.170.170 · AS15329 Deno

Reputation 87/100 weak security headers no dmarc policy

Classifying

HTML metadata

Title
Adam Argyle
Description
Website for Adam Argyle: Teacher, Speaker, CSSWG member, and creator of Open Props and VisBug.
Language
en
Feeds

Open Graph

url
https://nerdy.dev
title
Adam Argyle
site name
nerdy.dev
description
Website for Adam Argyle: Teacher, Speaker, CSSWG member, and creator of Open Props and VisBug.

Technology

Server
deployd

Third-party hosts loaded (3)

  • webmention.io×2
  • api.iconify.design×1
  • web.dev×1

Social

DNS records live

NS
  • ns-cloud-b1.googledomains.com
  • ns-cloud-b2.googledomains.com
  • ns-cloud-b3.googledomains.com
  • ns-cloud-b4.googledomains.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
  • google-site-verification=w89_7DlbQ0jn3uOxySrdLPpOra3EwkUZAUBUQ2-u7z8

Email authentication weak

SPF
v=spf1 include:_spf.google.com ~all
softfail (~all)
DMARC
not published
DKIM
  • google: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAiO+eu4ze88OCFLToSgf9GgTuAe11YGtYgxDc2uaPn7o/GsPB3CeAIAjXpM6jewYmpCm1idb8E0T3BL…
selectors probed

Certificate (current)

E8
from 2026-04-03 to 2026-07-02
Expires in 43 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://nerdy.dev/

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

Links to (50)

Linked from (8)