clockss.org

.org crawl

First seen 2026-04-13 · Last seen 2026-05-18 · ok HTTP/1.1 200 2030 ms crawled 2026-05-06

US · 44.199.152.91 · AS14618 Amazon.com, Inc.

Reputation 97/100 dmarc monitor-only

Classifying

HTML metadata

Title

Home - Digital Preservation Services - CLOCKSS

Description

CLOCKSS is a collaboration of world leading publishers and libraries providing digital preservation services for the long-term survival of digital scholarship.

Language

en-US

Generator

WordPress 6.9.4

Canonical

https://clockss.org/

Feeds

CLOCKSS » Feed RSS

Open Graph

url: https://clockss.org/
title: Home - Digital Preservation Services - CLOCKSS
locale: en_US
site name: CLOCKSS
description: CLOCKSS is a collaboration of world leading publishers and libraries providing digital preservation services for the long-term survival of digital scholarship.

Technology

Server: nginx
CMS: WordPress

Analytics

Google Tag Manager

Third-party hosts loaded (2)

www.googletagmanager.com×2
gmpg.org×1

Social

Contact

Address: st PolicyCharity RegistryAccreditationCopyright © 2026

Registration

Registrar

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

Created

2006-01-16

Expires

2027-01-16 241 days left

Updated

2026-01-13

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

0 clockss-org.mail.protection.outlook.com

TXT

google-site-verification=mcpA66HEthhd6mRtFkO_BeTFYX3k9DXaZbdvCWi6vEY
MS=ms30454987

Email authentication strong

SPF

v=spf1 include:spf.protection.outlook.com include:_spf.google.com include:23864228.spf06.hubspotemail.net -all

strict (-all)

DMARC

v=DMARC1; p=none;

policy: none (monitoring only)

DKIM

selector1: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAs4GSxaSxW66v7UNMG6d7UCxArynCWt5efl2++QR6IiHDjnuvhK0uYYJiCGgt0iytxskKfF43+x/jgp…
k2: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAv2aC2KjGKLOwTweBY5A9RpjsxaBXR9r7OAU6U8/zn92ivImI75naUujWbItRI/QmL1jy5PWGqLwoUA…

selectors probed

Certificate (current)

R12

from 2026-05-03 to 2026-08-01

Expires in 74 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 50/100 Checked live page: https://clockss.org/

present

strict-transport-security

findings

missing Content Security Policy
missing frame protection
missing content type protection
missing Referrer Policy
missing Permissions Policy

Header values

strict-transport-security: max-age=15768000; includeSubDomains