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Google Tag Manager vs Microsoft Clarity

Based on 2933 and 387 real audits

View Google Tag Manager details | View Microsoft Clarity details
MetricGoogle Tag ManagerMicrosoft ClarityWinner
Performance4134Google Tag Manager
Accessibility8890Microsoft Clarity
Best Practices8784Google Tag Manager
SEO9292Tie
Security6766Google Tag Manager
TTFB421ms422msGoogle Tag Manager
Composite7473Google Tag Manager
Performance
Google Tag Manager
41
Microsoft Clarity
34
Accessibility
Google Tag Manager
88
Microsoft Clarity
90
Security
Google Tag Manager
67
Microsoft Clarity
66
SEO
Google Tag Manager
92
Microsoft Clarity
92
Composite
Google Tag Manager
74
Microsoft Clarity
73

Google Tag Manager outperforms Microsoft Clarity in 5 of 7 categories, with a stronger composite score (74 vs 73). Microsoft Clarity leads in accessibility.

When to choose Google Tag Manager

Choose Google Tag Manager when your primary concern is performance and best practices. Its audit data shows consistent strength in these areas across the sampled sites.

When to choose Microsoft Clarity

Choose Microsoft Clarity when your primary concern is accessibility. Its audit data shows consistent strength in these areas across the sampled sites.

How this comparison was built

Scores are medians across 2933 audited Google Tag Manager sites and 387 audited Microsoft Clarity 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 →

FAQ

Which is faster, Google Tag Manager or Microsoft Clarity?
Based on real BeaverCheck audits, Google Tag Manager sites score higher on Lighthouse performance (41 vs 34 on average).
Which has better security, Google Tag Manager or Microsoft Clarity?
Google Tag Manager sites score higher on security analysis (67 vs 66 on average).
Which has better accessibility, Google Tag Manager or Microsoft Clarity?
Accessibility scores measured by Lighthouse WCAG 2.1 checks favor Microsoft Clarity (90 vs 88). Both technologies can be made fully accessible with care — the difference reflects common patterns in the sampled sites, not inherent platform limits.
Which is better for SEO, Google Tag Manager or Microsoft Clarity?
Google Tag Manager sites score higher on Lighthouse SEO signals (92 vs 92 on average), which cover meta tags, crawlability, mobile friendliness, and structured data. Content strategy and backlinks still matter more than platform choice for ranking.
Which has faster server response (TTFB), Google Tag Manager or Microsoft Clarity?
Google Tag Manager sites show lower Time to First Byte (421 ms vs 422 ms on average). TTFB depends heavily on hosting and CDN setup rather than the technology itself, but the sampled sites suggest a meaningful difference in common deployment patterns.
Should I choose Google Tag Manager or Microsoft Clarity for my website?
Both platforms have trade-offs. Google Tag Manager scores higher on overall composite score while Google Tag Manager may excel in metrics you care about most. Run a free BeaverCheck audit on a real site using each to compare the metrics relevant to your use case.
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