RSS vs Websocket
Head-to-head usage across the sites we track.
Top sites by authority
RSS · Websocket · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
179
1
Open Page Rank 8+
3,548
5
Open Page Rank 7+
16,334
13
Open Page Rank 6+
34,791
22
Open Page Rank 5+
68,200
31
Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.
By country
RSS · Websocket · share of sites in each country using one or the other
United States
887,410
243
India
336,391
166
Germany
333,621
178
Japan
319,148
99
United Kingdom
282,220
155
France
267,086
177
Brazil
265,509
116
Italy
258,995
154
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | RSS | Websocket |
|---|---|---|
| LCP | 2.1 s | 2.3 s |
| INP | 75 ms | 150 ms |
| CLS | 0 | 0.05 |
| TTFB | 1100 ms | 900 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.
Sites that switched
Domains that dropped one technology and adopted the other within about a year, data nobody else gives away free.
RSS to Websocket
| Domain | When |
|---|---|
| lecafedelecommerce.fr | Nov 2025 |