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core-js vs Google Tag Manager

Based on 2 and 3 real audits

View core-js details | View Google Tag Manager details
Metriccore-jsGoogle Tag ManagerWinner
Performance2426Google Tag Manager
Accessibility6969Tie
Best Practices7178Google Tag Manager
SEO9289core-js
Security6260core-js
TTFB201ms217mscore-js
Composite7069core-js
Performance
core-js
24
Google Tag Manager
26
Accessibility
core-js
69
Google Tag Manager
69
Security
core-js
62
Google Tag Manager
60
SEO
core-js
92
Google Tag Manager
89
Composite
core-js
70
Google Tag Manager
69

core-js outperforms Google Tag Manager in 4 of 7 categories, with a stronger composite score (70 vs 69). Google Tag Manager leads in performance, best practices.

FAQ

Which is faster, core-js or Google Tag Manager?
Based on real BeaverCheck audits, Google Tag Manager sites score higher on Lighthouse performance (26 vs 24 on average).
Which has better security, core-js or Google Tag Manager?
core-js sites score higher on security analysis (62 vs 60 on average).
Should I choose core-js or Google Tag Manager for my website?
Both platforms have trade-offs. Google Tag Manager scores higher on performance while core-js may excel in other areas. Run a free BeaverCheck audit to compare specific metrics relevant to your use case.
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