h5ai vs RSS
Head-to-head usage across the sites we track.
Top sites by authority
h5ai · RSS · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
0
179
Open Page Rank 8+
0
3,548
Open Page Rank 7+
0
16,334
Open Page Rank 6+
2
34,791
Open Page Rank 5+
2
68,200
Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.
By country
h5ai · RSS · share of sites in each country using one or the other
United States
36
887,410
India
24
336,391
Germany
20
333,621
Japan
17
319,148
United Kingdom
28
282,220
France
19
267,086
Brazil
27
265,509
Italy
15
258,995
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | h5ai | RSS |
|---|---|---|
| LCP | 2 s | 2.1 s |
| INP | 75 ms | 75 ms |
| CLS | 0 | 0 |
| TTFB | 900 ms | 1100 ms |
Median site's p75 values from the Chrome UX Report, Aug 2026. Lower is better; green meets Google's "good" threshold. This describes the sites that use each technology, not the technology's own overhead.