Domain diagnostics schulwiki.de

Diagnose potential issues with a given domain.

You can bookmark this tool as diag.domains .

Transfer schulwiki.de to Simply.com

Global name servers

Google Public DNS

shades13.rzone.de (2020050852, TTL: 150)

Cloudflare DNS

shades13.rzone.de (2020050852, TTL: 150)

Quad9

shades13.rzone.de (2020050852, TTL: 54)

ns1.simply.com

DNS request failed: The name server refuses to perform the specified operation for policy reasons.

ns2.simply.com

DNS request failed: The name server refuses to perform the specified operation for policy reasons.

ns3.simply.com

DNS request failed: The name server refuses to perform the specified operation for policy reasons.

External tests

DNS zone As seen by Google Public DNS

Web servers

schulwiki.de
Host Goal Reverse
schulwiki.de 81.169.145.68 w04.rzone.de
schulwiki.de AAAA IPv6 2a01:238:20a:202:1068:0:0:0 w04.rzone.de
www.schulwiki.de
Host Goal Reverse
www.schulwiki.de CNAME schulwiki.de -
schulwiki.de 81.169.145.68 w04.rzone.de
www.schulwiki.de CNAME schulwiki.de -
schulwiki.de AAAA IPv6 2a01:238:20a:202:1068:0:0:0 w04.rzone.de

Incoming mail

Host # Goal IP Reverse
schulwiki.de 5 smtpin.rzone.de 81.169.145.97 smtpin.rzone.de

Outgoing mail

SPF record

SPF issue: No SPF record found

DKIM records

Simply.com DKIM records not found

DMARC record

Name Value
_dmarc.schulwiki.de v=DMARC1;p=reject;

TXT records

Name Value
schulwiki.de google-site-verification=Ml7S29L9zz4dBAtsfikGPF-nURxm1tejRx_17oZ-Df0

Nameservers

Host Nameserver
schulwiki.de shades13.rzone.de
schulwiki.de docks19.rzone.de

WHOIS

% Restricted rights.
% 
% Terms and Conditions of Use
% 
% The above data may only be used within the scope of technical or
% administrative necessities of Internet operation or to remedy legal
% problems.
% The use for other purposes, in particular for advertising, is not permitted.
% 
% The DENIC whois service on port 43 doesn't disclose any information concerning
% the domain holder, general request and abuse contact.
% This information can be obtained through use of our web-based whois service
% available at the DENIC website:
% https://webwhois.denic.de/?lang=en
% 
% 

Domain: schulwiki.de
Nserver: docks19.rzone.de
Nserver: shades13.rzone.de
Status: connect
Changed: 2023-11-27T20:01:36+01:00

WHOIS result is cached for 15 minutes

RDAP

Could not retrieve RDAP data.

RDAP result is cached for 15 minutes

HTTP trace

1
http://schulwiki.de
HTTP 301
81.169.145.68
Namelookup
2 ms
Connect
20 ms
Pre-transfer
20 ms
Start-transfer (TTFB)
38 ms
HTTP/2 301 Moved Permanently
date: Tue, 21 Apr 2026 12:02:24 GMT
server: Apache/2.4.66 (Unix)
location: https://schulwiki.de/
content-length: 269
content-type: text/html; charset=iso-8859-1
2
https://schulwiki.de/
HTTP 301
81.169.145.68
Namelookup
1 ms
Connect
21 ms
Pre-transfer
47 ms
Start-transfer (TTFB)
220 ms
HTTP/3 301 Moved Permanently
date: Tue, 21 Apr 2026 12:02:24 GMT
server: Apache/2.4.66 (Unix)
x-powered-by: PHP/8.4.20
x-content-type-options: nosniff
vary: Accept-Encoding,Cookie,User-Agent
expires: Thu, 01 Jan 1970 00:00:00 GMT
cache-control: private, must-revalidate, max-age=0
last-modified: Tue, 21 Apr 2026 12:02:24 GMT
x-request-id: aednUH_PueYyaz13hgel1AAABrA
location: http://schulwiki.de/wiki/Hauptseite
content-type: text/html; charset=UTF-8
content-length: 0
3
http://schulwiki.de/wiki/Hauptseite
HTTP 301
81.169.145.68
Namelookup
0 ms
Connect
0 ms
Pre-transfer
0 ms
Start-transfer (TTFB)
19 ms
HTTP/2 301 Moved Permanently
date: Tue, 21 Apr 2026 12:02:24 GMT
server: Apache/2.4.66 (Unix)
location: https://schulwiki.de/wiki/Hauptseite
content-length: 284
content-type: text/html; charset=iso-8859-1
4
https://schulwiki.de/wiki/Hauptseite
HTTP 200
81.169.145.68
Namelookup
0 ms
Connect
0 ms
Pre-transfer
0 ms
Start-transfer (TTFB)
513 ms
HTTP/3 200 OK
date: Tue, 21 Apr 2026 12:02:24 GMT
server: Apache/2.4.66 (Unix)
x-powered-by: PHP/8.4.20
x-content-type-options: nosniff
content-language: de
vary: Accept-Encoding,Cookie,User-Agent
expires: Thu, 01 Jan 1970 00:00:00 GMT
cache-control: no-cache, no-store, max-age=0, must-revalidate
pragma: no-cache
content-encoding: gzip
x-request-id: aednUE1SCD0El9-6Iz2htAAAAjY
content-length: 6557
content-type: text/html; charset=UTF-8
4
Requests
3
Redirects
791 ms
Total time
200
Final status