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Craft CMS vs Yii

Based on 12 and 8 real audits

View Craft CMS details | View Yii details
MetricCraft CMSYiiWinner
Performance4248Yii
Accessibility8988Craft CMS
Best Practices8788Yii
SEO9191Tie
Security6562Craft CMS
TTFB167ms248msCraft CMS
Composite7473Craft CMS
Performance
Craft CMS
42
Yii
48
Accessibility
Craft CMS
89
Yii
88
Security
Craft CMS
65
Yii
62
SEO
Craft CMS
91
Yii
91
Composite
Craft CMS
74
Yii
73

Craft CMS outperforms Yii in 4 of 7 categories, with a stronger composite score (74 vs 73). Yii leads in performance, best practices.

When to choose Craft CMS

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

When to choose Yii

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

How this comparison was built

Scores are medians across 12 audited Craft CMS sites and 8 audited Yii 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, Craft CMS or Yii?
Based on real BeaverCheck audits, Yii sites score higher on Lighthouse performance (48 vs 42 on average).
Which has better security, Craft CMS or Yii?
Craft CMS sites score higher on security analysis (65 vs 62 on average).
Which has better accessibility, Craft CMS or Yii?
Accessibility scores measured by Lighthouse WCAG 2.1 checks favor Craft CMS (89 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, Craft CMS or Yii?
Craft CMS sites score higher on Lighthouse SEO signals (91 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), Craft CMS or Yii?
Craft CMS sites show lower Time to First Byte (167 ms vs 248 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 Craft CMS or Yii for my website?
Both platforms have trade-offs. Yii scores higher on overall composite score while Craft CMS 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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