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dc.js vs Google Tag Manager

Based on 70 and 2487 real audits

View dc.js details | View Google Tag Manager details
Metricdc.jsGoogle Tag ManagerWinner
Performance3740Google Tag Manager
Accessibility8888Tie
Best Practices8786dc.js
SEO9391dc.js
Security6664dc.js
TTFB390ms370msGoogle Tag Manager
Composite7373Tie
Performance
dc.js
37
Google Tag Manager
40
Accessibility
dc.js
88
Google Tag Manager
88
Security
dc.js
66
Google Tag Manager
64
SEO
dc.js
93
Google Tag Manager
91
Composite
dc.js
73
Google Tag Manager
73

dc.js outperforms Google Tag Manager in 3 of 7 categories, with a stronger composite score (73 vs 73). Google Tag Manager leads in performance, TTFB.

When to choose dc.js

Choose dc.js when your primary concern is SEO and security. Its audit data shows consistent strength in these areas across the sampled sites.

When to choose Google Tag Manager

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.

How this comparison was built

Scores are medians across 70 audited dc.js sites and 2487 audited Google Tag Manager 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, dc.js or Google Tag Manager?
Based on real BeaverCheck audits, Google Tag Manager sites score higher on Lighthouse performance (40 vs 37 on average).
Which has better security, dc.js or Google Tag Manager?
dc.js sites score higher on security analysis (66 vs 64 on average).
Which has better accessibility, dc.js or Google Tag Manager?
Accessibility scores measured by Lighthouse WCAG 2.1 checks favor dc.js (88 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, dc.js or Google Tag Manager?
dc.js sites score higher on Lighthouse SEO signals (93 vs 91 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), dc.js or Google Tag Manager?
Google Tag Manager sites show lower Time to First Byte (370 ms vs 390 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 dc.js or Google Tag Manager for my website?
Both platforms have trade-offs. Google Tag Manager scores higher on overall composite score while dc.js 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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