- Category rank
- #483 in SEO
- Price
- Free plan
- Listing audit
- 81/100
Inline ‑ Critical CSS is a Shopify App Store app by Speed Boostr, launched March 2021. With a rating of 3.7★ from 8 reviews, it currently ranks #483 in the SEO category.
Inline ‑ Critical CSS is the #483 ranked SEO app on Shopify, with a 3.7 average rating from 8 reviews, with a free plan available, as of Nov 3, 2026.
AppRanks verdict
Generated from marketplace data as of Nov 3, 2026
Inline ‑ Critical CSS ranks #483 of 1,330 in SEO on Shopify. It holds a 3.7★ average from 8 reviews on Shopify. A free plan is available, so the entry feature set can be tried without a paid subscription.
Pros
- +Free plan available — no paid subscription needed to start
- +Listed on Shopify since 2021
Cons
- −Average rating below 4.0 (3.7★) — read recent low-star reviews before committing
- −Only 8 reviews — the average can still move with a few new ratings
About Inline ‑ Critical CSS
How Inline ‑ Critical CSS works
With Critical CSS, the visitor gets the base styling as quickly as possible; because it’s right there in a <style> element in the document’s <head>, there’s: no extra request to the server for the stylesheet & no waiting for the requested styles to load in and render.
The below-the-fold, or non-critical, styling is then loaded in the background to avoid render-blocking.
Screenshots
