What powers pennybooks.io?
Last seen Jul 2026 · 36 technologies across 19 categories
Analytics
Appointment scheduling
Calendly
since Jun 2023
CDN
CMS
WordPress
since Dec 2020
Databases
MySQL
since Dec 2020
Font scripts
Twitter Emoji (Twemoji)
since Dec 2020
Hosting
GoDaddy
since Nov 2022
JavaScript frameworks
JavaScript libraries
Live chat
Intercom
since Nov 2022
Miscellaneous
PaaS
WP Engine
since Feb 2022
Programming languages
PHP
since Dec 2020
Security
Cloudflare Bot Management
since Feb 2022
reCAPTCHA
since Dec 2020
Tag managers
Google Tag Manager
since Dec 2020
UI frameworks
ZURB Foundation
since Dec 2020
Video players
Vimeo
since Feb 2022
Webmail
Microsoft 365
since Nov 2022
WordPress plugins
AI Crawlers
Doesn't name any of the 33 AI crawlers we track in its robots.txt. Catch-all rules (User-agent: *) restrict some paths for every crawler, AI or not. Checked Sep 2026.
- robots.txt found
- llms.txt found
- ai.txt not found
- Sep 2026 llms.txt appeared
AI Crawlers
No AI crawlers blocked
Standards: llms.txt
Open Page Rank
1.99 / 10 · ranked #3,602,560 of all domains
7 referring domains · OpenPageRank
Infrastructure
- Hosted on Cloudflare (141.193.213.10)
- DNS: GoDaddy DNS
- Email: Microsoft 365
- Email security: SPF (hard fail), DMARC quarantine
- SSL: Let's Encrypt, ECDSA P256, expires Nov 2026
- Common Crawl link graph: rank 7,128,518
- Verified with: Brevo, Microsoft 365
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Full technology history →
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Recent changes
- detected Twitter Emoji (Twemoji) Mar 2026
- dropped Zoho Nov 2025