Based on 2656 and 18 real audits
| Metric | Google Tag Manager | ShareThis | Winner |
|---|---|---|---|
| Performance | 41 | 33 | Google Tag Manager |
| Accessibility | 88 | 88 | Tie |
| Best Practices | 86 | 85 | Google Tag Manager |
| SEO | 91 | 92 | ShareThis |
| Security | 65 | 66 | ShareThis |
| TTFB | 387ms | 558ms | Google Tag Manager |
| Composite | 73 | 72 | Google Tag Manager |
Google Tag Manager outperforms ShareThis in 4 of 7 categories, with a stronger composite score (73 vs 72). ShareThis leads in SEO, security.
Choose Google Tag Manager when your primary concern is server response time and performance. Its audit data shows consistent strength in these areas across the sampled sites.
Choose ShareThis when your primary concern is SEO and security. Its audit data shows consistent strength in these areas across the sampled sites.
Scores are medians across 2656 audited Google Tag Manager sites and 18 audited ShareThis 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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