indexo.dev

jacobtrefethen.com

.com crawl

First seen 2026-04-14 · Last seen 2026-05-07 · ok HTTP/1.1 200 206 ms crawled 2026-05-07

US · 192.0.78.24 · AS2635 Automattic, Inc

Reputation 100/100

Classifying

HTML metadata

Title
Jacob Trefethen
Description
Hi! I’m Jacob. I blog about science at blog.jacobtrefethen.com and talk about medical progress on the podcast Hard Drugs. The rest of this website is a place for me to keep notes on the books I read and listen to. This is as much for my benefit as anyone else's, but I hope you get something…
Language
en
Generator
WordPress.com
Canonical
https://jacobtrefethen.com/
Feeds

Open Graph

url
https://jacobtrefethen.com/
title
Jacob Trefethen
locale
en_US
site name
Jacob Trefethen

Technology

Server
nginx
CMS
WordPress
Third-party hosts loaded (11)
  • s1.wp.com×3
  • s2.wp.com×3
  • fonts-api.wp.com×2
  • public-api.wordpress.com×2
  • 0.gravatar.com×1
  • gmpg.org×1
  • jacobtrefethen.wordpress.com×1
  • pixel.wp.com×1
  • s0.wp.com×1
  • stats.wp.com×1
  • wp.me×1

Registration

Registrar
Wild West Domains, LLC
Created
2016-10-20
Expires
2026-10-20 154 days left
Updated
2025-09-20
Name servers
  • ns1.wordpress.com
  • ns2.wordpress.com

DNS records live

NS
  • ns1.wordpress.com
  • ns2.wordpress.com
  • ns3.wordpress.com

Email authentication no MX

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

Certificate (current)

WR1
from 2026-04-26 to 2026-07-25
Expires in 67 days

Full certificate history on crt.sh ↗

HTTP security headers

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

present
  • strict-transport-security
findings
  • missing Content Security Policy
  • missing frame protection
  • missing content type protection
  • missing Referrer Policy
  • missing Permissions Policy
Header values
strict-transport-security
max-age=31536000

Links to (3)

Linked from (1)