indexo.dev

tryalgo.org

.org crawl

First seen 2026-04-21 · Last seen 2026-05-11 · ok HTTP/1.1 200 906 ms crawled 2026-05-15

US · 185.199.108.153 · AS54113 Fastly, Inc.

Reputation 87/100 weak security headers no dmarc policy

Classifying

HTML metadata

Title
Algorithmic Problem Solving - TryAlgo
Description
Résolution de problèmes algorithmiques
Language
en-US
Generator
Jekyll v4.4.1
Canonical
https://tryalgo.org/

Open Graph

url
https://tryalgo.org/
title
Algorithmic Problem Solving
locale
en_US
site name
TryAlgo
description
Résolution de problèmes algorithmiques

Technology

CDN
Fastly
Server
GitHub.com
CMS
Gatsby

Third-party hosts loaded (2)

  • cdn.jsdelivr.net×1
  • ghbtns.com×1

Social

Registration

Registrar
OVH sas
Created
2014-02-26
Expires
2027-02-26 282 days left
Updated
2026-04-12
Name servers
  • dns107.ovh.net
  • ns107.ovh.net

DNS records live

NS
  • dns107.ovh.net
  • ns107.ovh.net
MX
  • 1 mx4.mail.ovh.net
  • 10 mx3.mail.ovh.net
TXT
  • 1|www.tryalgo.org

Email authentication weak

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

Certificate (current)

R13
from 2026-04-28 to 2026-07-27
Expires in 69 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://tryalgo.org/

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

Links to (4)

Linked from (1)