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Integral Ad Science vs Open AdStream

Based on 34 and 2 real audits

View Integral Ad Science details | View Open AdStream details
MetricIntegral Ad ScienceOpen AdStreamWinner
Performance3540Open AdStream
Accessibility8874Integral Ad Science
Best Practices8386Open AdStream
SEO9396Open AdStream
Security6562Integral Ad Science
TTFB274ms212msOpen AdStream
Composite7271Integral Ad Science
Performance
Integral Ad Science
35
Open AdStream
40
Accessibility
Integral Ad Science
88
Open AdStream
74
Security
Integral Ad Science
65
Open AdStream
62
SEO
Integral Ad Science
93
Open AdStream
96
Composite
Integral Ad Science
72
Open AdStream
71

Open AdStream outperforms Integral Ad Science in 4 of 7 categories, with a stronger composite score (71 vs 72). Integral Ad Science leads in accessibility, security, composite score.

When to choose Integral Ad Science

Choose Integral Ad Science when your primary concern is accessibility and security. Its audit data shows consistent strength in these areas across the sampled sites.

When to choose Open AdStream

Choose Open AdStream 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 34 audited Integral Ad Science sites and 2 audited Open AdStream 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 →

Small sample: one or both technologies have fewer than 10 audited sites. Treat these numbers as directional — medians stabilize around 20–30 audits per side.

FAQ

Which is faster, Integral Ad Science or Open AdStream?
Based on real BeaverCheck audits, Open AdStream sites score higher on Lighthouse performance (40 vs 35 on average).
Which has better security, Integral Ad Science or Open AdStream?
Integral Ad Science sites score higher on security analysis (65 vs 62 on average).
Which has better accessibility, Integral Ad Science or Open AdStream?
Accessibility scores measured by Lighthouse WCAG 2.1 checks favor Integral Ad Science (88 vs 74). 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, Integral Ad Science or Open AdStream?
Open AdStream sites score higher on Lighthouse SEO signals (96 vs 93 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), Integral Ad Science or Open AdStream?
Open AdStream sites show lower Time to First Byte (212 ms vs 274 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 Integral Ad Science or Open AdStream for my website?
Both platforms have trade-offs. Open AdStream scores higher on overall composite score while Integral Ad Science 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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