What powers 1919a4.com?
Last seen Jun 2026 · 37 technologies across 20 categories
Advertising
Ad Lightning
since Apr 2023
Amazon Advertising
since Jan 2023
AppNexus
since Feb 2019
Google AdSense
since Jan 2019
Google Publisher Tag
since Feb 2021
PubMatic
since Jul 2021
Rubicon Project
since Jul 2021
Taboola
since Jul 2025
TripleLift
since Nov 2024
Affiliate programs
Skimlinks
since Jun 2021
Analytics
Authentication
Apple Sign-in
since Sep 2024
Caching
Varnish
since Nov 2023
CDN
Cloudflare
since May 2020
Unpkg
since Feb 2023
Databases
MySQL
since May 2020
Sendgrid
since Feb 2024
Font scripts
Google Font API
since Jun 2023
IaaS
Google Cloud
since Jan 2019
JavaScript frameworks
JavaScript libraries
LazySizes
since Feb 2022
Message boards
XenForo
since May 2020
Miscellaneous
Performance
Priority Hints
since Sep 2025
Programming languages
PHP
since May 2020
Reverse proxies
Envoy
since May 2020
Security
reCAPTCHA
since May 2022
Segmentation
Adobe Audience Manager
since Apr 2023
Tag managers
Google Tag Manager
since Jan 2019
Audience
- 75% phone
- 25% desktop
United States
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
1.30 / 10 · ranked #8,649,581 of all domains
11 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.1 s |
| INP | 100 ms |
| CLS | 0 |
| TTFB | 300 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: English (United States)
- CDN: Fastly
- Weight: 5.6 MB · 1,625 requests
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| www.1919a4.com | 34 |
| 1919a4.com | 12 |
Full technology history →
Report an incorrect detection
Recent changes
- detected Gravatar Jun 2026
- detected Unpkg Jun 2026
- detected web-vitals Jun 2026
- dropped Qwik May 2026
- dropped HTTP/3 Apr 2026
- dropped Microsoft ASP.NET Apr 2026
- detected Qwik Mar 2026
- detected Microsoft ASP.NET Feb 2026
- dropped Qwik Feb 2026
- detected Google AdSense Jan 2026
- dropped Microsoft ASP.NET Jan 2026
- detected Taboola Jan 2026
- dropped Google AdSense Dec 2025
- dropped Taboola Dec 2025
- dropped Unpkg Dec 2025
- dropped web-vitals Dec 2025
- dropped Preact Oct 2025
- dropped Survicate Oct 2025
- detected Unpkg Oct 2025
- detected web-vitals Oct 2025
- detected Priority Hints Sep 2025
- dropped SpeedCurve Sep 2025
- detected Microsoft ASP.NET Aug 2025
- detected Rubicon Project Aug 2025