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Rank #3,518Updated November 10, 2026

taxfoundation.org

Tax Foundation | Principled, Insightful, Engaged

taxfoundation.org is registered with Amazon Registrar, Inc. since February 24, 1996 (30.7 years). The registration expires on February 25, 2029. The site runs on WordPress, Amazon CloudFront, CookieYes and 12 other technologies. Its email security grade is C. Its SSL certificate is issued by Amazon and is valid for 67 more days.

Domain age
30.7 yrs
Technologies
15
Email security
C
SSL days left
67

Registration

RegistrarAmazon Registrar, Inc.
IANA ID468
RegisteredFebruary 24, 1996
ExpiresFebruary 25, 2029
UpdatedAugust 12, 2026
Statusclient transfer prohibited
Name serversns-1011.awsdns-62.net, ns-1235.awsdns-26.org, ns-139.awsdns-17.com, ns-1800.awsdns-33.co.uk
DNSSECNot signed

DNS records

TypeValueTTL
A3.174.46.5060
A3.174.46.7860
A3.174.46.10460
A3.174.46.1560
MXtaxfoundation-org.mail.protection.outlook.com 0300
NSns-1011.awsdns-62.net172800
NSns-1235.awsdns-26.org172800
NSns-139.awsdns-17.com172800
NSns-1800.awsdns-33.co.uk172800
TXT00dj0000001rzlyea23600
TXT267C3632443600
TXTMS=ms368146303600
TXTapple-domain-verification=mPbx7o8ujRHkicTi3600
TXTatlassian-domain-verification=ykDElOfDhkD0ZZ+GGs7eC8ZoaZitugLS9Qzo8MI6hG6UJ/v5KRGNnxGP1GErXxzW3600
TXTcanva-site-verification=8AznUPvo56Es8O6TY8JF2w3600
TXTgoogle-site-verification=bN-7qDjNP_IqgiV4HXKgX5rNze_vXtger_0tG4y-k3c3600
TXTinclude:spf-us.emailsignatures365.com3600
TXTv=spf1 a mx ptr include:spf.protection.outlook.com include:spf.dynect.net include:servers.mcsv.net include:20785128.spf02.hubspotemail.net include:_spf.salesforce.com -all3600
AAAA2600:9000:28eb:d600:1c:cc62:e780:93a160
AAAA2600:9000:28eb:0:1c:cc62:e780:93a160
AAAA2600:9000:28eb:6600:1c:cc62:e780:93a160
AAAA2600:9000:28eb:d800:1c:cc62:e780:93a160
AAAA2600:9000:28eb:1800:1c:cc62:e780:93a160
AAAA2600:9000:28eb:9800:1c:cc62:e780:93a160
AAAA2600:9000:28eb:4e00:1c:cc62:e780:93a160
AAAA2600:9000:28eb:ce00:1c:cc62:e780:93a160

Technology stack

CDN
Amazon CloudFront
CMS
WordPress
Cookie consent
CookieYes
Fonts
Google Fonts
JavaScript library
AOSjQueryjQuery Migrate
Marketing automation
HubSpot
Programming language
PHP
Security
Content Security PolicyHSTS
SEO
Yoast SEO
Tag manager
Google Tag Manager
Web server
Nginx
WordPress plugin
WPML

Analytics and advertising IDs

google_tag_manager:GTM-NLRXG9V

SSL certificate

ValidValid
IssuerUS, Amazon RSA 2048 M04, Amazon
ExpiresJanuary 16, 2027
Days remaining67
ProtocolTLSv1.3
Namestaxfoundation.org, www.taxfoundation.org

Email security

CScore 74/100 across SPF, DMARC, DKIM, MTA-STS and BIMI.
  • warnSPF uses 9 of the 10 allowed DNS lookups. Adding another service may break it.
  • warnSPF uses the deprecated 'ptr' mechanism, which is slow and ignored by some receivers.
  • warnDKIM key found (selector: selector2, k1) but it is only 1024 bits; 2048 is recommended.
  • warnNo MTA-STS: mail sent to you can be downgraded to an unencrypted connection.
  • warnNo TLS-RPT record, so you won't hear about failed encrypted deliveries.
  • warnNo BIMI record (optional: shows your logo next to your emails in supporting inboxes).
  • goodSPF record found.
  • goodSPF ends with -all: servers you have not listed are rejected (hard fail).
  • goodDMARC policy is quarantine: failing mail goes to spam. Move to p=reject for full protection.
  • goodDMARC aggregate reports are sent to mailto:[email protected].

Homepage metadata

TitleTax Foundation | Principled, Insightful, Engaged
DescriptionTax Foundation is the world's leading independent tax policy nonprofit. We lead the tax reform debate toward smarter simpler policy.
Languageen-US
Canonicalhttps://taxfoundation.org/
Structured dataWebPage, ImageObject, BreadcrumbList, WebSite, Organization
IndexableYes
Word count1806

About taxfoundation.org

Who is the registrar of taxfoundation.org?

taxfoundation.org is registered with Amazon Registrar, Inc. (IANA ID 468).

When does taxfoundation.org expire?

The current registration of taxfoundation.org expires on February 25, 2029. It was first registered on February 24, 1996.

What technology does taxfoundation.org use?

We detected 15 technologies on taxfoundation.org, including Amazon CloudFront, WordPress, CookieYes, Google Fonts, AOS, jQuery.

Does taxfoundation.org protect its email with SPF and DMARC?

taxfoundation.org scores 74/100 (grade C) for email security. SPF uses 9 of the 10 allowed DNS lookups. Adding another service may break it. SPF uses the deprecated 'ptr' mechanism, which is slow and ignored by some receivers.

What are the name servers of taxfoundation.org?

taxfoundation.org uses ns-1011.awsdns-62.net, ns-1235.awsdns-26.org, ns-139.awsdns-17.com, ns-1800.awsdns-33.co.uk.