Based on 3047 and 154 real audits
| Metric | Google Tag Manager | Masonry | Winner |
|---|---|---|---|
| Performance | 41 | 45 | Masonry |
| Accessibility | 88 | 84 | Google Tag Manager |
| Best Practices | 87 | 88 | Masonry |
| SEO | 92 | 90 | Google Tag Manager |
| Security | 67 | 69 | Masonry |
| TTFB | 433ms | 714ms | Google Tag Manager |
| Composite | 74 | 75 | Masonry |
Masonry outperforms Google Tag Manager in 4 of 7 categories, with a stronger composite score (75 vs 74). Google Tag Manager leads in accessibility, SEO, TTFB.
Choose Google Tag Manager when your primary concern is server response time and accessibility. Its audit data shows consistent strength in these areas across the sampled sites.
Choose Masonry when your primary concern is performance and security. Its audit data shows consistent strength in these areas across the sampled sites.
Scores are medians across 3047 audited Google Tag Manager sites and 154 audited Masonry sites in the BeaverCheck database. Every audit runs the same 100+ checks — Lighthouse performance, security headers, accessibility, SEO, server response time — against a real URL. No vendor input, no sponsorship, no affiliate links. Read the full methodology →
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