handbookoffourieranalysis.com

.com crawl

First seen 2026-05-31 · Last seen 2026-06-02 · ok HTTP/1.1 200 388 ms crawled 2026-06-01

US · 143.244.201.229 · AS14061 DigitalOcean, LLC

Reputation 95/100 weak security headers

Classifying

HTML metadata

Title: Handbook of Fourier Analysis

Technology

Server: nginx
CMS: Joomla

Ads

Amazon Ads

Third-party hosts loaded (2)

web.ecs.baylor.edu×2
ws-na.amazon-adsystem.com×1

Registration

Registrar

NameCheap, Inc.

Created

2007-07-24

Expires

2026-07-24 51 days left

Updated

2024-10-10

Name servers

ns1.digitalocean.com
ns2.digitalocean.com

DNS records live

NS

ns1.digitalocean.com
ns2.digitalocean.com
ns3.digitalocean.com

Email authentication no MX

SPF: not published
DMARC: not published
DKIM: no key found at common selectors

Certificate (current)

R13

from 2026-04-15 to 2026-07-14

Expires in 41 days

Full certificate history on crt.sh ↗

HTTP security headers

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

findings

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

Links to (1)

robertmarks.org×1