indexo.dev

calculate-linux.org

.org crawl

First seen 2026-04-11 · Last seen 2026-05-18 · ok HTTP/1.1 200 788 ms crawled 2026-05-18

RU · 217.79.0.34 · AS8492 OBIT Ltd.

Reputation 89/100 weak security headers dmarc monitor-only

Classifying

HTML metadata

Title
Calculate Linux
Language
en
Translations
  • en
  • fr
  • ru

Open Graph

url
https://wiki.calculate-linux.org/www
title
Calculate Linux
site name
Calculate Linux Wiki

Technology

Server
nginx

Third-party hosts loaded (1)

  • mc.yandex.ru×1

Social

Registration

Registrar
Registrar of Domain Names REG.RU LLC
Created
2008-08-11
Expires
2027-08-11 449 days left
Updated
2026-05-17
Name servers
  • ns1.reg.ru
  • ns2.reg.ru

DNS records live

NS
  • ns1.reg.ru
  • ns2.reg.ru
MX
  • 0 calculate-linux.org

Email authentication partial

SPF
v=spf1 ip4:217.79.0.35 include:_spf.yandex.net ~all
softfail (~all)
DMARC
v=DMARC1; p=none
policy: none (monitoring only)
DKIM
  • default: v=DKIM1; g=*; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDFu2N5qY3FQjwvwBo6VHfFnqtkGoPSArJZ0cI9C9JTjwPqt0Ugt3CRSTJ94yiC7slBzoiKHsu0l7wfy…
  • mail: p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQC64Q2WjoUPSa9lnopH4yV+tndI3fyuUIdgv/PYIf8iCT9LMfbpSyVg6lAk8mot67vb14yhJC7FHA9X4y/px1ZhqO33vuexM3079q…
selectors probed

Certificate (current)

E7
from 2026-05-03 to 2026-08-01
Expires in 74 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 40/100 Checked live page: https://www.calculate-linux.org/

present
  • x-frame-options
findings
  • missing HSTS
  • missing Content Security Policy
  • missing content type protection
  • missing Referrer Policy
  • missing Permissions Policy
Header values
x-frame-options
SAMEORIGIN

Links to (6)

Linked from (1)