What powers on-this-day.com?
Last seen Aug 2026 · 25 technologies across 12 categories
Advertising
33Across
since Jun 2022
Amazon Advertising
since Jun 2021
AppNexus
since Jun 2022
Criteo
since Aug 2023
Google Publisher Tag
since Feb 2023
GumGum
since Jun 2022
ID5
since Oct 2023
OpenX
since Sep 2018
Prebid
since Aug 2023
PubMatic
since Jun 2022
Rubicon Project
since Jun 2022
Advertising Networks
Google AdSense
since Jan 2016
Analytics
Google Analytics
since Jun 2018
Snowplow Analytics
since Jul 2023
CDN
Cloudflare
since Dec 2022
jsDelivr
since Aug 2023
Cookie compliance
Funding Choices
since Dec 2022
Hosting
GoDaddy
since Aug 2022
JavaScript libraries
Closure Library
since Oct 2023
Security
Cloudflare Bot Management
since Dec 2022
reCAPTCHA
since Apr 2022
Segmentation
Adobe Audience Manager
since Aug 2022
Tag managers
Google Tag Manager
since Jun 2018
Web Servers
Apache HTTP Server
since Jan 2016
Webmail
Microsoft 365
since Aug 2022
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 not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
- 79% desktop
- 21% phone
United States
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.87 / 10 · ranked #674,097 of all domains
74 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.3 s |
| INP | 50 ms |
| CLS | 0.1 |
| TTFB | 500 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: English (United States)
- Weight: 2.4 MB · 2,592 requests
Homepage as crawled by the HTTP Archive, Sep 2026.
Subdomains
| Host | Techs |
|---|---|
| www.on-this-day.com | 25 |
| on-this-day.com | 20 |
Full technology history →
Report an incorrect detection
Recent changes
- dropped Microsoft ASP.NET Apr 2026
- dropped Google Font API Feb 2026
- detected Google Font API Dec 2025