Rudderstack vs Sirdata
Head-to-head usage across the sites we track.
Top sites by authority
Rudderstack · Sirdata · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
7
3
Open Page Rank 8+
75
21
Open Page Rank 7+
287
81
Open Page Rank 6+
493
159
Open Page Rank 5+
768
338
Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.
By country
Rudderstack · Sirdata · share of sites in each country using one or the other
United States
6,230
814
France
1,012
4,295
Canada
1,876
650
United Kingdom
1,846
578
India
1,933
252
Spain
1,070
900
Germany
1,019
662
Belgium
500
1,087
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | Rudderstack | Sirdata |
|---|---|---|
| LCP | 1.8 s | 1.8 s |
| INP | 75 ms | 100 ms |
| CLS | 0 | 0 |
| TTFB | 900 ms | 800 ms |
Median site's p75 values from the Chrome UX Report, Sep 2026. Lower is better; green meets Google's "good" threshold. This describes the sites that use each technology, not the technology's own overhead.