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33Across vs DoubleVerify

Based on 14 and 12 real audits

View 33Across details | View DoubleVerify details
Metric33AcrossDoubleVerifyWinner
Performance2934DoubleVerify
Accessibility8686Tie
Best Practices7778DoubleVerify
SEO908933Across
Security666433Across
TTFB311ms259msDoubleVerify
Composite727133Across
Performance
33Across
29
DoubleVerify
34
Accessibility
33Across
86
DoubleVerify
86
Security
33Across
66
DoubleVerify
64
SEO
33Across
90
DoubleVerify
89
Composite
33Across
72
DoubleVerify
71

33Across and DoubleVerify are closely matched, each leading in different categories. 33Across has a composite score of 72 while DoubleVerify scores 71.

When to choose 33Across

Choose 33Across when your primary concern is security and SEO. Its audit data shows consistent strength in these areas across the sampled sites.

When to choose DoubleVerify

Choose DoubleVerify 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 14 audited 33Across sites and 12 audited DoubleVerify 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, 33Across or DoubleVerify?
Based on real BeaverCheck audits, DoubleVerify sites score higher on Lighthouse performance (34 vs 29 on average).
Which has better security, 33Across or DoubleVerify?
33Across sites score higher on security analysis (66 vs 64 on average).
Which has better accessibility, 33Across or DoubleVerify?
Accessibility scores measured by Lighthouse WCAG 2.1 checks favor 33Across (86 vs 86). 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, 33Across or DoubleVerify?
33Across sites score higher on Lighthouse SEO signals (90 vs 89 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), 33Across or DoubleVerify?
DoubleVerify sites show lower Time to First Byte (259 ms vs 311 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 33Across or DoubleVerify for my website?
Both platforms have trade-offs. DoubleVerify scores higher on overall composite score while 33Across 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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