What powers us-tax.org?
Last seen Jul 2026 · 16 technologies across 12 categories
CMS
WordPress
since Mar 2021
Databases
MySQL
since Mar 2021
Font scripts
Twitter Emoji (Twemoji)
since Jul 2021
JavaScript libraries
Miscellaneous
Open Graph
since Sep 2022
RSS
since Dec 2022
PaaS
WordPress.com
since Jan 2022
Page builders
WordPress Block Editor
since Jul 2024
Performance
Priority Hints
since May 2026
Programming languages
PHP
since Mar 2021
Security
HSTS
since Sep 2022
Web servers
Nginx
since Mar 2021
WordPress plugins
Jetpack
since May 2026
RankMath SEO
since Jul 2026
AI Crawlers
Blocks 11 of 33 AI crawlers we track by name in its robots.txt. Checked Aug 2026.
Training crawlers
- Applebot-Extended Blocked
- Bytespider Blocked
- CCBot Blocked
- ClaudeBot Blocked
- FacebookBot Blocked
- Google-Extended Blocked
- GPTBot Blocked
- meta-externalagent Blocked
- Webzio-Extended Blocked
Search and AI assistants
- Amazonbot Blocked
- PerplexityBot Blocked
The other 22 AI crawlers we track are not mentioned and only inherit the catch-all rules that apply to every crawler.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
11 of 33 AI crawlers blocked
Open Page Rank
1.49 / 10 · ranked #6,614,329 of all domains
9 referring domains · OpenPageRank
Full technology history →
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Recent changes
- dropped HTTP/3 Jul 2026
- detected RankMath SEO Jul 2026
- dropped Custom Fonts Jun 2026
- detected Jetpack May 2026
- detected jQuery May 2026
- detected jQuery Migrate May 2026
- detected Priority Hints May 2026
- detected Twitter Emoji (Twemoji) Dec 2025