Based on 2764 and 179 real audits
| Metric | Google Tag Manager | unpkg | Winner |
|---|---|---|---|
| Performance | 41 | 39 | Google Tag Manager |
| Accessibility | 88 | 89 | unpkg |
| Best Practices | 87 | 84 | Google Tag Manager |
| SEO | 91 | 90 | Google Tag Manager |
| Security | 66 | 67 | unpkg |
| TTFB | 403ms | 386ms | unpkg |
| Composite | 74 | 74 | Tie |
Google Tag Manager and unpkg are closely matched, each leading in different categories. Google Tag Manager has a composite score of 74 while unpkg scores 74.
Choose Google Tag Manager when your primary concern is best practices and performance. Its audit data shows consistent strength in these areas across the sampled sites.
Choose unpkg when your primary concern is server response time and accessibility. Its audit data shows consistent strength in these areas across the sampled sites.
Scores are medians across 2764 audited Google Tag Manager sites and 179 audited unpkg 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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