indexo.dev

pragprog.com

.com crawl

First seen 2026-04-11 · Last seen 2026-05-18 · ok HTTP/1.1 200 922 ms crawled 2026-05-18

US · 64.23.242.214 · AS14061 DigitalOcean, LLC

Reputation 95/100 weak security headers

Classifying

HTML metadata

Title
Pragmatic Bookshelf: By Developers, For Developers
Description
We improve the lives of professional developers. We create timely, practical books on classic and cutting-edge topics to help you learn and practice your craft, and accelerate your career. Come learn with us.
Language
en
Generator
Hugo 0.144.0
Feeds

Technology

Server
we-prefer-the-term-willing-assistant
CMS
Hugo
Fonts
  • Google Fonts

Third-party hosts loaded (4)

  • cdn.jsdelivr.net×2
  • cdnjs.cloudflare.com×1
  • fonts.googleapis.com×1
  • transactions.sendowl.com×1

Social

Registration

Registrar
1API GmbH
Created
1999-01-19
Expires
2027-01-19 245 days left
Updated
2026-01-14
Name servers
  • ns-1266.awsdns-30.org
  • ns-1538.awsdns-00.co.uk
  • ns-275.awsdns-34.com
  • ns-960.awsdns-56.net

DNS records live

NS
  • ns-1266.awsdns-30.org
  • ns-1538.awsdns-00.co.uk
  • ns-275.awsdns-34.com
  • ns-960.awsdns-56.net
MX
  • 10 mx1.emailsrvr.com
  • 20 mx2.emailsrvr.com
TXT
  • google-site-verification=aaQupeaj2Y1RYRFl6M599QBYIuP6pCOihDLS9t0cLYY
  • v=DMARC1; p=quarantine; rua=mailto:ead94e32@in.mailhardener.com

Email authentication strong

SPF
v=spf1 include:spf0.pragprog.com ~all
softfail (~all)
DMARC
v=DMARC1; p=quarantine; rua=mailto:ead94e32@in.mailhardener.com
policy: quarantine
DKIM
  • google: v=DKIM1;k=rsa;p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA0EAZTRpRfR6EUt4SQebSrMnEcsR0L5/Dxq1Z5fpwUYEE1Xff51z7r/D+ALttBi04k5NbMqgsEKIoA4nN…
  • mail: k=rsa;p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDeMVIzrCa3T14JsNY0IRv5/2V1/v2itlviLQBwXsa7shBD6TrBkswsFUToPyMRWC9tbR/5ey0nRBH0ZVxp+lsmTxid2Y2z…
  • smtpapi: k=rsa; t=s; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDPtW5iwpXVPiH5FzJ7Nrl8USzuY9zqqzjE0D1r04xDN6qwziDnmgcFNNfMewVKN2D1O+2J9N14hRprzByFwfQW76…
selectors probed

Certificate (current)

E8
from 2026-05-14 to 2026-08-12
Expires in 85 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://pragprog.com/

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

Links to (10)

Linked from (32)