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Google Tag Manager vs OpenX

Based on 2656 and 52 real audits

View Google Tag Manager details | View OpenX details
MetricGoogle Tag ManagerOpenXWinner
Performance4128Google Tag Manager
Accessibility8885Google Tag Manager
Best Practices8677Google Tag Manager
SEO9190Google Tag Manager
Security6565Tie
TTFB387ms335msOpenX
Composite7371Google Tag Manager
Performance
Google Tag Manager
41
OpenX
28
Accessibility
Google Tag Manager
88
OpenX
85
Security
Google Tag Manager
65
OpenX
65
SEO
Google Tag Manager
91
OpenX
90
Composite
Google Tag Manager
73
OpenX
71

Google Tag Manager outperforms OpenX in 5 of 7 categories, with a stronger composite score (73 vs 71). OpenX leads in TTFB.

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 OpenX

Choose OpenX when your primary concern is server response time. Its audit data shows consistent strength in these areas across the sampled sites.

How this comparison was built

Scores are medians across 2656 audited Google Tag Manager sites and 52 audited OpenX 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 OpenX?
Based on real BeaverCheck audits, Google Tag Manager sites score higher on Lighthouse performance (41 vs 28 on average).
Which has better security, Google Tag Manager or OpenX?
Google Tag Manager sites score higher on security analysis (65 vs 65 on average).
Which has better accessibility, Google Tag Manager or OpenX?
Accessibility scores measured by Lighthouse WCAG 2.1 checks favor Google Tag Manager (88 vs 85). 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 OpenX?
Google Tag Manager sites score higher on Lighthouse SEO signals (91 vs 90 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 OpenX?
OpenX sites show lower Time to First Byte (335 ms vs 387 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 OpenX 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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