indexo.dev

tomasp.net

.net crawl

First seen 2026-04-14 · Last seen 2026-05-10 · ok HTTP/1.1 200 555 ms crawled 2026-05-07

US · 185.199.109.153 · AS54113 Fastly, Inc.

Reputation 89/100 weak security headers dmarc monitor-only

Classifying

HTML metadata

Title
Tomas Petricek - New ways of thinking about programming
Description
I'm an assistant professor at Charles University and a partner at fsharpWorks. I work on making programming simpler and more open. To do so, I combine work on programming systems with history and philosophy of programming and computing.
Feeds

Open Graph

url
http://tomasp.net
title
Tomas Petricek - New ways of thinking about programming
description
I'm an assistant professor at Charles University and a partner at fsharpWorks. I work on making programming simpler and more open. To do so, I combine work on programming systems with history and philosophy of programming and computing.

Technology

CDN
Fastly
Server
GitHub.com
Fonts
  • Google Fonts

Third-party hosts loaded (3)

  • cdnjs.cloudflare.com×2
  • fonts.googleapis.com×1
  • fonts.gstatic.com×1

Social

Contact

Email

Registration

Registrar
Tucows Domains Inc.
Created
2006-04-02
Expires
2028-04-02 684 days left
Updated
2023-01-23
Name servers
  • vida.ns.cloudflare.com
  • zahir.ns.cloudflare.com

DNS records live

NS
  • vida.ns.cloudflare.com
  • zahir.ns.cloudflare.com
MX
  • 10 mail.protonmail.ch
  • 20 mailsec.protonmail.ch
TXT
  • protonmail-verification=4498fdd1fd66399b4a9163da40da5ad29441f1a9

Email authentication strong

SPF
v=spf1 include:_spf.protonmail.ch mx ~all
softfail (~all)
DMARC
v=DMARC1; p=none
policy: none (monitoring only)
DKIM
no key found at common selectors

Certificate (current)

R13
from 2026-04-26 to 2026-07-25
Expires in 67 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://tomasp.net/

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

Links to (12)

Linked from (2)