indexo.dev

dspguide.com

.com crawl

First seen 2026-04-12 · Last seen 2026-05-14 · ok HTTP/1.1 200 1260 ms crawled 2026-05-04

US · 65.254.227.224 · AS29873 Newfold Digital, Inc.

Reputation 95/100 weak security headers

Classifying

HTML metadata

Title
The Scientist and Engineer's Guide to Digital Signal Processing

Registration

Registrar
Network Solutions, LLC
Created
1997-11-10
Expires
2035-11-09 3460 days left
Updated
2025-11-10
Name servers
  • ns1.windowsww.com
  • ns2.windowsww.com

DNS records live

NS
  • ns1.purehost.com
  • ns2.purehost.com
MX
  • 30 mail.dspguide.com
TXT
  • v=spf1 ip4:38.113.1.0/24 ip4:38.113.20.0/24 ip4:65.254.224.0/19 include:websitewelcome.com ?all

Certificate (current)

E7
from 2026-03-26 to 2026-06-24
Expires in 36 days

Full certificate history on crt.sh ↗

HTTP security headers

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

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

Links to (3)

Linked from (4)