Kosas landing page teardown
The page at sephora.com has been the destination of a Kosas Facebook ad for 19 days. We captured it and scored it 43/100 on the 8-point CRO checklist below.
Offer on the page: FREE standard shipping on all orders

?What is a CRO score?
CRO stands for Conversion Rate Optimization: turning more of the visitors you already have into customers. This score (0 to 100) rates how well a landing page is built to convert, across 8 factors like offer, headline, speed, trust, and mobile. Read the full explainer →
Funnel score
8-point CRO breakdown
How well the landing page behind the ad is built to convert, scored across 8 factors: offer, copy, speed, trust, mobile, message-match, CTA, and social proof.
This landing page represents a significant CRO failure. The ad promotes a specific Kosas concealer product with influencer credibility and acne-safe benefits, but users land on a generic sign-in page rather than the product page. This creates immediate friction and message mismatch. The PageSpeed score of 59 is concerning for mobile users. While the sign-in form itself is well-designed for mobile, requiring authentication before product discovery is a major conversion barrier. No product information, social proof, or offer details are visible. The page should either allow product browsing without sign-in or redirect directly to the product page with sign-in as an optional step.
What this page does right. Steal these.
- Trust signals: Sephora is an established brand with visible legal links (Terms of Use, Privacy Policy). Checkbox for 'Keep me signed in' adds familiarity. However, sign-in requirement before product view may reduce trust for new users.
- Mobile experience: Clean mobile layout with properly sized input fields and buttons. Good spacing and readability. However, sign-in wall creates friction on mobile.
Where it leaks conversions
- Social proof: No social proof visible - no reviews, ratings, testimonials, or user-generated content shown on this sign-in page.
- Message match: Poor alignment between ad (influencer recommendation of Kosas Revealer Concealer for acne-safe makeup) and landing page (generic sign-in screen). User must sign in before seeing the product.
- Page speed: PageSpeed score of 59 indicates poor performance. This is below acceptable standards and will negatively impact conversion rates and user experience.
- Headline: Generic 'Sign In' heading with no compelling value proposition or product-specific messaging. Doesn't connect to the influencer ad about acne-safe makeup.
- Offer clarity: Free standard shipping is mentioned in header, but no specific product offer, discount, or promotion is clearly stated on the visible sign-in page. The actual product page isn't shown.
Full breakdown
Clear 'Sign In' button with good contrast, but it's a friction point before reaching the product. Secondary 'Create Account' CTA is also clear but adds steps.
PageSpeed score of 59 indicates poor performance. This is below acceptable standards and will negatively impact conversion rates and user experience.
Sephora is an established brand with visible legal links (Terms of Use, Privacy Policy). Checkbox for 'Keep me signed in' adds familiarity. However, sign-in requirement before product view may reduce trust for new users.
Clean mobile layout with properly sized input fields and buttons. Good spacing and readability. However, sign-in wall creates friction on mobile.
Generic 'Sign In' heading with no compelling value proposition or product-specific messaging. Doesn't connect to the influencer ad about acne-safe makeup.
No social proof visible - no reviews, ratings, testimonials, or user-generated content shown on this sign-in page.
Poor alignment between ad (influencer recommendation of Kosas Revealer Concealer for acne-safe makeup) and landing page (generic sign-in screen). User must sign in before seeing the product.
Free standard shipping is mentioned in header, but no specific product offer, discount, or promotion is clearly stated on the visible sign-in page. The actual product page isn't shown.
Keep exploring
Captured from the public page at sephora.com; ad data from the public Meta Ad Library. Funnelens is not affiliated with Kosas or Meta. See data sources.