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+
3,525
5
Open Page Rank 7+
16,163
12
Open Page Rank 6+
34,380
20
Open Page Rank 5+
67,346
28
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
865,432
233
India
329,297
168
Germany
327,527
164
Japan
314,790
95
United Kingdom
281,660
141
Italy
272,529
148
France
271,657
166
Brazil
255,443
113
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | RSS | Websocket |
|---|---|---|
| LCP | 2.1 s | 2.2 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, 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.
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 |