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Aweber vs ButterCMS

Based on 4 and 1 real audits

View Aweber details | View ButterCMS details
MetricAweberButterCMSWinner
Performance5030Aweber
Accessibility9086Aweber
Best Practices8488ButterCMS
SEO9492Aweber
Security6059Aweber
TTFB311ms367msAweber
Composite7371Aweber
Performance
Aweber
50
ButterCMS
30
Accessibility
Aweber
90
ButterCMS
86
Security
Aweber
60
ButterCMS
59
SEO
Aweber
94
ButterCMS
92
Composite
Aweber
73
ButterCMS
71

Aweber outperforms ButterCMS in 6 of 7 categories, with a stronger composite score (73 vs 71). ButterCMS leads in best practices.

When to choose Aweber

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

When to choose ButterCMS

Choose ButterCMS when your primary concern is best practices. Its audit data shows consistent strength in these areas across the sampled sites.

How this comparison was built

Scores are medians across 4 audited Aweber sites and 1 audited ButterCMS 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, Aweber or ButterCMS?
Based on real BeaverCheck audits, Aweber sites score higher on Lighthouse performance (50 vs 30 on average).
Which has better security, Aweber or ButterCMS?
Aweber sites score higher on security analysis (60 vs 59 on average).
Which has better accessibility, Aweber or ButterCMS?
Accessibility scores measured by Lighthouse WCAG 2.1 checks favor Aweber (90 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, Aweber or ButterCMS?
Aweber sites score higher on Lighthouse SEO signals (94 vs 92 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), Aweber or ButterCMS?
Aweber sites show lower Time to First Byte (311 ms vs 367 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 Aweber or ButterCMS for my website?
Both platforms have trade-offs. Aweber scores higher on overall composite score while Aweber 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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