BoldGrid Post and Page Builder vs Substack
Head-to-head usage across the sites we track.
Top sites by authority
BoldGrid Post and Page Builder · Substack · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
0
3
Open Page Rank 8+
0
14
Open Page Rank 7+
0
60
Open Page Rank 6+
0
137
Open Page Rank 5+
0
226
Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.
By country
BoldGrid Post and Page Builder · Substack · share of sites in each country using one or the other
United States
1
2,725
United Kingdom
0
862
India
0
805
Canada
0
669
Australia
0
369
Spain
0
336
Germany
0
332
Brazil
0
314
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | BoldGrid Post and Page Builder | Substack |
|---|---|---|
| LCP | 2.9 s | 1.9 s |
| INP | 25 ms | 75 ms |
| CLS | 0 | 0 |
| TTFB | 2100 ms | 500 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.
All BoldGrid Post and Page Builder sites · All Substack sites