indexo.dev

serversforhackers.com

.com crawl

First seen 2026-04-12 · Last seen 2026-05-06 · ok HTTP/1.1 200 495 ms crawled 2026-05-06

US · 13.33.235.3 · AS16509 Amazon.com, Inc.

Reputation 97/100 dmarc monitor-only

sector tech type homepage

HTML metadata

Title
Servers for Hackers
Language
en

Open Graph

title
Servers for Hackers
description
What programmers need to know about servers.

Technology

CDN
Amazon CloudFront
Server
nginx
Social widgets
  • Vimeo Embed

Third-party hosts loaded (5)

  • cdn.jsdelivr.net×2
  • cloudcasts.io×2
  • chipperci.com×1
  • player.vimeo.com×1
  • www.facebook.com×1

Registration

Registrar
NameCheap, Inc.
Created
2014-01-20
Expires
2027-01-20 246 days left
Updated
2025-12-21
Name servers
  • ns-1251.awsdns-28.org
  • ns-1931.awsdns-49.co.uk
  • ns-39.awsdns-04.com
  • ns-793.awsdns-35.net

DNS records live

NS
  • ns-1251.awsdns-28.org
  • ns-1931.awsdns-49.co.uk
  • ns-39.awsdns-04.com
  • ns-793.awsdns-35.net
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=EM1AAAIzVpYCZHi3rI9WWtD6W9ZeW-BIoxgXfwIPOvc

Email authentication strong

SPF
v=spf1 mx ptr include:servers.mcsv.net include:mailgun.org include:sendgrid.net ~all
softfail (~all)
DMARC
v=DMARC1; p=none; pct=100; rua=mailto:re+acpnmwzlyms@dmarc.postmarkapp.com; sp=none; aspf=r;
policy: none (monitoring only) · sp=none
DKIM
no key found at common selectors

Certificate (current)

Amazon RSA 2048 M01
from 2026-01-13 to 2027-02-11
Expires in 268 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 50/100 Checked live page: https://serversforhackers.com/

present
  • x-frame-options
  • x-content-type-options
findings
  • missing HSTS
  • missing Content Security Policy
  • missing Referrer Policy
  • missing Permissions Policy
Header values
x-frame-options
SAMEORIGIN
x-content-type-options
nosniff

Links to (3)

Linked from (2)