Aprimo vs Celum
Head-to-head usage across the sites we track.
Top sites by authority
Aprimo · Celum · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
3
1
Open Page Rank 8+
13
1
Open Page Rank 7+
28
1
Open Page Rank 6+
40
6
Open Page Rank 5+
56
14
Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.
By country
Aprimo · Celum · share of sites in each country using one or the other
Brazil
273
9
United States
114
19
United Kingdom
83
13
Italy
78
16
India
78
14
Germany
69
20
Canada
76
12
Spain
66
15
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | Aprimo | Celum |
|---|---|---|
| LCP | 2.1 s | 1.3 s |
| INP | 75 ms | 100 ms |
| CLS | 0 | 0 |
| TTFB | 900 ms | 400 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.