mod_auth_pam vs OpenSSL
Head-to-head usage across the sites we track.
Top sites by authority
mod_auth_pam · OpenSSL · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
0
37
Open Page Rank 8+
0
748
Open Page Rank 7+
2
2,406
Open Page Rank 6+
2
4,113
Open Page Rank 5+
3
6,465
Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.
By country
mod_auth_pam · OpenSSL · share of sites in each country using one or the other
United States
33
29,654
Japan
9
22,526
India
4
16,898
Brazil
1
12,786
Germany
1
11,844
South Korea
1
11,243
United Kingdom
3
11,237
Italy
1
11,018
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | mod_auth_pam | OpenSSL |
|---|---|---|
| LCP | 1.4 s | 1.7 s |
| INP | 0 ms | 75 ms |
| CLS | 0 | 0 |
| TTFB | 600 ms | 700 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.