What powers 
softcover.io?
Last seen Sep 2026 · 23 technologies across 15 categories
Advertising
Twitter Ads
since Jun 2021
Analytics
Authentication
Facebook Login
since Jun 2021
CDN
Font scripts
Font Awesome
since May 2017
Google Font API
since May 2017
JavaScript graphics
Chart.js
since Apr 2022
JavaScript libraries
Payment processors
Programming languages
Ruby
since Jan 2019
Reverse proxies
Envoy
since Mar 2024
Security
Cloudflare Bot Management
since May 2022
Video players
Vimeo
since Nov 2021
Web frameworks
Ruby on Rails
since Jan 2019
Webmail
Google Workspace
since Aug 2022
Widgets
Twitter
since Jan 2019
AI Crawlers
Doesn't mention any of the 33 AI crawlers we track in its robots.txt; all are allowed by default. Checked Oct 2026.
- robots.txt found
- llms.txt not checked
- ai.txt not checked
AI Crawlers
No AI crawlers blocked
Audience
United States
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.91 / 10 · ranked #639,871 of all domains
43 referring domains · OpenPageRank
Core Web Vitals
| LCP | 4.5 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 1700 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Weight: 3.3 MB · 54 requests
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on CARL-CORPORATION (66.71.205.0)
- DNS: Cloudflare DNS
- Email: Google Workspace
- Email security: no SPF record, no DMARC record
- SSL: Let's Encrypt, RSA 2048, expires Dec 2026
- Common Crawl link graph: rank 2,035,899, 4 hosts
- Verified with: Google
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Full technology history →
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Recent changes
- dropped Crazy Egg Sep 2026
- dropped Optimizely Sep 2026