indexo.dev

oersi.org

.org crawl

First seen 2026-05-01 · Last seen 2026-05-01 · ok HTTP/1.1 200 1422 ms crawled 2026-05-08

DE · 194.95.114.28 · AS680 Verein zur Foerderung eines Deutschen Forschungsnetzes e.V.

Reputation 95/100 weak security headers

Classifying

HTML metadata

Title
Open Educational Resources Search Index
Description
The Open Educational Resources Search Index (OERSI) provides a central point for searching for open educational resources in higher education by bringing together the content of distributed OER repositories and other sources of open educational resources.
Language
en
Canonical
https://oersi.org

Open Graph

url
https://oersi.org
title
Open Educational Resources Search Index
site name
OERSI
description
The Open Educational Resources Search Index (OERSI) provides a central point for searching for open educational resources in higher education by bringing together the content of distributed OER repositories and other sources of open educational resources.

Technology

Server
nginx
CMS
Gatsby

Registration

Registrar
Key-Systems GmbH
Created
2020-10-29
Expires
2026-10-29 162 days left
Updated
2025-12-13
Name servers
  • ns01.tib.eu
  • ns02.tib.eu
  • ns03.tib.eu

DNS records live

NS
  • ns01.tib.eu
  • ns02.tib.eu
  • ns03.tib.eu

Email authentication no MX

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

Certificate (current)

E7
from 2026-05-06 to 2026-08-04
Expires in 76 days

Full certificate history on crt.sh ↗

HTTP security headers

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

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

Linked from (1)