Astra vs Twenty Thirteen
Head-to-head usage across the sites we track.
Top sites by authority
Astra · Twenty Thirteen · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
21
6
Open Page Rank 8+
312
63
Open Page Rank 7+
915
115
Open Page Rank 6+
1,690
155
Open Page Rank 5+
3,081
205
Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.
By country
Astra · Twenty Thirteen · share of sites in each country using one or the other
United States
61,862
1,201
India
47,125
729
Spain
22,977
333
France
19,758
661
Germany
19,508
651
Brazil
19,843
297
United Kingdom
18,404
531
Indonesia
17,425
291
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | Astra | Twenty Thirteen |
|---|---|---|
| LCP | 2.5 s | 1.7 s |
| INP | 75 ms | 50 ms |
| CLS | 0 | 0 |
| TTFB | 1300 ms | 900 ms |
Median site's p75 values from the Chrome UX Report, Jun 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.
Twenty Thirteen to Astra
| Domain | When |
|---|---|
| pedelec-schmidt.de | May 2026 |
| vtcclaypotindia.com | May 2026 |
| aperos-musique-blesle.com | Apr 2026 |
| karatens.org | Jul 2025 |