PHPDebugBar vs SlickStack
Head-to-head usage across the sites we track.
Top sites by authority
PHPDebugBar · SlickStack · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 8+
9
0
Open Page Rank 7+
33
0
Open Page Rank 6+
50
0
Open Page Rank 5+
67
1
Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.
By country
PHPDebugBar · SlickStack · share of sites in each country using one or the other
United States
287
24
India
275
9
Germany
274
3
Indonesia
239
3
France
184
4
Italy
174
3
United Kingdom
147
13
Bangladesh
152
4
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | PHPDebugBar | SlickStack |
|---|---|---|
| LCP | 2 s | 2.1 s |
| INP | 75 ms | 75 ms |
| CLS | 0 | 0 |
| TTFB | 900 ms | 1200 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.