lernu.net

.net crawl

First seen 2026-04-22 · Last seen 2026-05-16 · ok HTTP/1.1 200 2581 ms crawled 2026-05-16

DE · 92.205.231.206 · AS21499 Host Europe GmbH

Reputation 94/100 dmarc monitor-only

Classifying

HTML metadata

Title

A multilingual site for learning the international language Esperanto - lernu.net

Description

A multilingual website for learning the international language Esperanto

Language

Canonical

https://lernu.net

Translations

ar
bg
ca
cs
da
de
en
eo
es
et
fa
fi
fr
he
hr
hu
id
it
ja
ka
ko
lt
nl
no
pl
pt
rn
ro
ru
sk
sl
sr
sv
sw
th
tr
uk
vi
zh-cn
zh-tw

Open Graph

url: https://lernu.net
title: A multilingual site for learning the international language Esperanto
site name: lernu.net - A multilingual website for learning the international language Esperanto
description: A multilingual website for learning the international language Esperanto

Technology

Server: nginx

Third-party hosts loaded (1)

analytics.sgaus.net×1

Social

Registration

Registrar

CSL Computer Service Langenbach GmbH d/b/a joker.com

Created

2002-05-17

Expires

2027-05-17 363 days left

Updated

2026-03-14

Name servers

x.ns.joker.com
y.ns.joker.com
z.ns.joker.com

DNS records live

NS

x.ns.joker.com
y.ns.joker.com
z.ns.joker.com

MX

1 aspmx.l.google.com
10 aspmx2.googlemail.com
10 aspmx3.googlemail.com
5 alt1.aspmx.l.google.com
5 alt2.aspmx.l.google.com

TXT

google-site-verification=yufB2JtdTbyU7mCNEMcxuUPjpNrApRein_WfL57J5RY

Email authentication partial

SPF

v=spf1 ip4:37.200.98.230 ip4:92.205.231.206 include:_spf.google.com include:amazonses.com ~all

softfail (~all)

DMARC

v=DMARC1; p=none;

policy: none (monitoring only)

DKIM

google: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAu+tV9z464QM1y4i+ESelbCb4Sxe94+o894whQbkohAs5neg+SGRL9y6M7+TYLxyxu90lIz0hzYp4xx…

selectors probed

Certificate (current)

from 2026-04-27 to 2026-07-26

Expires in 68 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 80/100 Checked live page: https://lernu.net/

present

strict-transport-security
x-frame-options
x-content-type-options
referrer-policy
permissions-policy

findings

missing Content Security Policy

Header values

referrer-policy: strict-origin
x-frame-options: SAMEORIGIN
permissions-policy: geolocation=(),midi=(),sync-xhr=(),microphone=(),camera=(),magnetometer=(),gyroscope=(),fullscreen=(self),payment=()
x-content-type-options: nosniff
strict-transport-security: max-age=31536000; includeSubDomains