Based on 2706 and 134 real audits
| Metric | Google Tag Manager | Popper | Winner |
|---|---|---|---|
| Performance | 41 | 45 | Popper |
| Accessibility | 88 | 87 | Google Tag Manager |
| Best Practices | 87 | 89 | Popper |
| SEO | 91 | 89 | Google Tag Manager |
| Security | 66 | 66 | Tie |
| TTFB | 394ms | 320ms | Popper |
| Composite | 73 | 74 | Popper |
Popper outperforms Google Tag Manager in 4 of 7 categories, with a stronger composite score (74 vs 73). Google Tag Manager leads in accessibility, SEO.
Choose Google Tag Manager when your primary concern is SEO and accessibility. Its audit data shows consistent strength in these areas across the sampled sites.
Choose Popper when your primary concern is server response time and performance. Its audit data shows consistent strength in these areas across the sampled sites.
Scores are medians across 2706 audited Google Tag Manager sites and 134 audited Popper 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 →
Send Feedback