indexo.dev

databasedesignbook.com

.com crawl

First seen 2026-04-14 · Last seen 2026-05-08 · ok HTTP/1.1 200 3421 ms crawled 2026-05-08

US · 3.13.222.255 · AS16509 Amazon.com, Inc.

Reputation 89/100 weak security headers dmarc monitor-only

sector education type landing page

HTML metadata

Title
Database Design Book
Language
en

Open Graph

title
Database Design Book

Technology

Server
openresty
CMS
Joomla
Fonts
  • Google Fonts

Third-party hosts loaded (5)

  • pages.convertkit.com×6
  • cdnjs.cloudflare.com×2
  • embed.filekitcdn.com×1
  • fonts.googleapis.com×1
  • fonts.gstatic.com×1

Registration

Registrar
NameCheap, Inc.
Created
2023-11-04
Expires
2026-11-04 168 days left
Updated
2025-10-05
Name servers
  • ns-1490.awsdns-58.org
  • ns-1555.awsdns-02.co.uk
  • ns-236.awsdns-29.com
  • ns-892.awsdns-47.net

DNS records live

NS
  • ns-1490.awsdns-58.org
  • ns-1555.awsdns-02.co.uk
  • ns-236.awsdns-29.com
  • ns-892.awsdns-47.net
MX
  • 10 mx1.privateemail.com
  • 10 mx2.privateemail.com

Email authentication partial

SPF
v=spf1 include:spf.privateemail.com ~all
softfail (~all)
DMARC
v=DMARC1; p=none;
policy: none (monitoring only)
DKIM
  • default: v=DKIM1;k=rsa;p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA1HSy3ru1ATrU+pS3UyjWH+6guESokF/7CtBOvBXbBtEnsPkg10ttfJHz225tqiM3Y0GXKszvDBQH2iEe…
selectors probed

Certificate (current)

R13
from 2026-04-26 to 2026-07-25
Expires in 66 days

Full certificate history on crt.sh ↗

HTTP security headers

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

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

Links to (2)

Linked from (1)