Dereferer.org dereferer.org - free derefering service
dereferer.org provides free derefering services as well as background knowledge and resources around building and using dereferers.
Server IP address resolved: No
Http response code: None
Last Checked: 04/21/2025
Dereferer.org traffic volume is 6,090 unique daily visitors and their 29,539 pageviews. The web value rate of dereferer.org is 515,526 USD. Each visitor makes around 5.19 page views on average.
By Alexa's traffic estimates dereferer.org placed at 92,242 position over the world, while the largest amount of its visitors comes from United States, where it takes 15,375 place.
Dereferer.org is hosted by o2switch SARL in Germany; however, we recommend migrating the server to United States, as it will speed up dereferer.org page load time for the majority of users. See the list of other web pages hosted by o2switch SARL.
Dereferer.org registered under .ORG top-level domain. Check other websites in .ORG zone.
The last verification results, performed on (October 13, 2024) dereferer.org show that dereferer.org has an expired SSL certificate issued by Let's Encrypt (expired on December 10, 2024). Click “Refresh” button for SSL Information at the Safety Information section. Check the list of websites using SSL certificates issued by Let's Encrypt.
In accordance with Google Safe Browsing, Google Safe Search, Symantec and Web of Trust dereferer.org is pretty a safe domain.
Relying Google MobileFriendly test dereferer.org is well optimized for mobile and tablet devices.

We gather website safety and reputation data and compare it with available third-party sources so we calculate own safety and trustworthiness rate based on information that we get.

Norton ConnectSafe evaluates dereferer.org for any unsafe and insecure content. The results are critical for families with young children.

SafeSearch is used as a parental control tool to filter out any inappropriate for your children search results on your devices: phones, tablets or personal computers.

Malware: not found.
Phishing: not detected.
Unwanted software: not found.
Harmfull applications: not found.
Google Safe Browsing notifies when websites are compromised by malicious actors. These protections work across Google products and provide a safer online experience.

McAfee assesses dereferer.org for a meaningful set of security threats. Featured dangers from annoying pop-ups to hidden Trojans, that can steal your identity, will be revealed. McAfee does not analyze dereferer.org for mature or inappropriate content, only security checks are evaluated.

The WOT calculates reputation of the dereferer.org. This reputation system receives ratings from users and information from third-party sources, assesses the dereferer.org for safety features and confirms, whether dereferer.org is suitable for children.
Domain | dereferer.org |
Issuer Organization | Let's Encrypt |
Issuer | R10 |
Algorithm | RSA-SHA256 |
Valid form | 09/11/2024 |
Expiration | 12/10/2024 |
Signed | Certificate is not self signed |
Additional Domains |
dereferer.org mail.dereferer.org www.dereferer.org |
ASN ID: 50474
ASN Title: o2switch SARL
Last Update: 04/10/2025
% This is the RIPE Database query service.
% The objects are in RPSL format.
%
% The RIPE Database is subject to Terms and Conditions.
% See http://www.ripe.net/db/support/db-terms-conditions.pdf
% Note: this output has been filtered.
% To receive output for a database update, use the "-B" flag.
% Information related to 'AS47104 - AS52223'
as-block: AS47104 - AS52223
descr: RIPE NCC ASN block
remarks: These AS Numbers are assigned to network operators in the RIPE NCC service region.
mnt-by: RIPE-NCC-HM-MNT
created: 2015-09-30T14:19:22Z
last-modified: 2015-09-30T14:19:22Z
source: RIPE
% Information related to 'AS50474'
% Abuse contact for 'AS50474' is 'abuse@o2switch.fr'
aut-num: AS50474
as-name: O2SWITCH
org: ORG-oS50-RIPE
import: from AS44902 accept any
import: from AS50618 accept any
import: from AS8218 accept any
export: to AS44902 announce AS50474
export: to AS50618 announce AS50474
export: to AS8218 announce AS50474
admin-c: YA460-RIPE
tech-c: YA460-RIPE
status: ASSIGNED
mnt-by: RIPE-NCC-END-MNT
mnt-by: MNT-O2SWITCH
mnt-routes: MNT-O2SWITCH
created: 2010-01-22T11:22:57Z
last-modified: 2017-11-15T12:16:25Z
source: RIPE
organisation: ORG-oS50-RIPE
org-name: o2switch SARL
org-type: LIR
address: 222-224 Boulevard Gustave Flaubert
address: 63000
address: Clermont-Ferrand
address: FRANCE
phone: +33444446040
fax-no: +33444446041
admin-c: YA460-RIPE
abuse-c: OAT9-RIPE
mnt-ref: RIPE-NCC-HM-MNT
mnt-ref: MNT-O2SWITCH
mnt-by: RIPE-NCC-HM-MNT
mnt-by: MNT-O2SWITCH
created: 2009-12-31T12:32:05Z
last-modified: 2016-05-30T10:14:29Z
source: RIPE # Filtered
person: YEPES Alexandre
address: O2SWITCH
address: 222-224 Boulevard Gustave Flaubert
address: 63000 Clermont-Ferrand
address: FRANCE
phone: +33.444446040
nic-hdl: YA460-RIPE
created: 2009-12-31T16:42:31Z
last-modified: 2017-01-18T14:31:27Z
source: RIPE # Filtered
mnt-by: MNT-O2SWITCH
% This query was served by the RIPE Database Query Service version 1.91.2 (ANGUS)
Domain Name: dereferer.org
Registry Domain ID: 9d7fb3fb4623489e823ca2f2fcd2cac7-LROR
Registrar WHOIS Server: http://whois.rrpproxy.net
Registrar URL: http://www.key-systems.net
Updated Date: 2022-12-08T13:15:29Z
Creation Date: 2021-10-21T14:30:34Z
Registry Expiry Date: 2024-10-21T14:30:34Z
Registrar: Key-Systems GmbH
Registrar IANA ID: 269
Registrar Abuse Contact Email: abuse@key-systems.net
Registrar Abuse Contact Phone: +49.68949396850
Domain Status: ok https://icann.org/epp#ok
Registry Registrant ID: REDACTED FOR PRIVACY
Registrant Name: REDACTED FOR PRIVACY
Registrant Organization:
Registrant Street: REDACTED FOR PRIVACY
Registrant City: REDACTED FOR PRIVACY
Registrant State/Province:
Registrant Postal Code: REDACTED FOR PRIVACY
Registrant Country: FR
Registrant Phone: REDACTED FOR PRIVACY
Registrant Phone Ext: REDACTED FOR PRIVACY
Registrant Fax: REDACTED FOR PRIVACY
Registrant Fax Ext: REDACTED FOR PRIVACY
Registrant Email: Please query the RDDS service of the Registrar of Record identified in this output for information on how to contact the Registrant, Admin, or Tech contact of the queried domain name.
Registry Admin ID: REDACTED FOR PRIVACY
Admin Name: REDACTED FOR PRIVACY
Admin Organization: REDACTED FOR PRIVACY
Admin Street: REDACTED FOR PRIVACY
Admin City: REDACTED FOR PRIVACY
Admin State/Province: REDACTED FOR PRIVACY
Admin Postal Code: REDACTED FOR PRIVACY
Admin Country: REDACTED FOR PRIVACY
Admin Phone: REDACTED FOR PRIVACY
Admin Phone Ext: REDACTED FOR PRIVACY
Admin Fax: REDACTED FOR PRIVACY
Admin Fax Ext: REDACTED FOR PRIVACY
Admin Email: Please query the RDDS service of the Registrar of Record identified in this output for information on how to contact the Registrant, Admin, or Tech contact of the queried domain name.
Registry Tech ID: REDACTED FOR PRIVACY
Tech Name: REDACTED FOR PRIVACY
Tech Organization: REDACTED FOR PRIVACY
Tech Street: REDACTED FOR PRIVACY
Tech City: REDACTED FOR PRIVACY
Tech State/Province: REDACTED FOR PRIVACY
Tech Postal Code: REDACTED FOR PRIVACY
Tech Country: REDACTED FOR PRIVACY
Tech Phone: REDACTED FOR PRIVACY
Tech Phone Ext: REDACTED FOR PRIVACY
Tech Fax: REDACTED FOR PRIVACY
Tech Fax Ext: REDACTED FOR PRIVACY
Tech Email: Please query the RDDS service of the Registrar of Record identified in this output for information on how to contact the Registrant, Admin, or Tech contact of the queried domain name.
Name Server: ns1.o2switch.net
Name Server: ns2.o2switch.net
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of WHOIS database: 2024-09-09T11:58:15Z
Host | A Record | TTL |
---|---|---|
dereferer.org | 195.234.228.150 | 300 |
Host | MX Record | Priority | TTL |
---|---|---|---|
dereferer.org | qhmx1.colt1.inetserver.de | 10 | 300 |
dereferer.org | qhmx2.colt1.inetserver.de | 10 | 300 |
Host | NS Record | TTL |
---|---|---|
dereferer.org | ns1.domainkunden.de | 300 |
dereferer.org | ns2.domainkunden.de | 300 |
Host | TXT Record | TTL |
---|
master.domainkunden.de
TTL: 300
Email address: hostmaster.domainkunden.de
Serial: 2016102401
Refresh: 28800
Retry: 7200
Expire: 604800
Minimum: 300
Last tested: 05/06/2018

Total Resources | 4 |
Number of Hosts | 1 |
Static Resources | 2 |
CSS Resources | 1 |
Last tested: 12/02/2019


Total Resources | 4 |
Number of Hosts | 1 |
Static Resources | 2 |
CSS Resources | 1 |
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