Kosas landing page teardown
The page at sephora.com has been the destination of a Kosas Facebook ad for 51 days. We captured it and scored it 40/100 on the 8-point CRO checklist below.
Offer on the page: -25% dès 89€ d'achats ou -20% dès 49€ d'achats*. Code : AOUT2026
?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 Sephora homepage fails to match the ad's specific product focus (KOSAS Cloud Set Mist). The page shows generic promotional banners and category browsing rather than the advertised setting spray. While the site has strong trust signals (Sephora branding, customer reviews, service details), the landing experience is misaligned—users expecting a product page arrive at a homepage with competing offers and distractions. Mobile experience appears functional but the page speed is critically poor (29/100), and the primary CTA ("Découvrir") is generic rather than product-focused. Social proof exists via star ratings on products shown, but the headline and offer clarity are about Sephora promotions, not the KOSAS product.
What this page does right. Steal these.
- Trust signals7/10
Where it leaks conversions
- Message match1/10
- Headline2/10
- Call to action3/10
- Page speed3/10
- Offer clarity4/10
Full breakdown
Call to action
3/10Multiple generic 'Découvrir' buttons appear throughout, but none specifically target the KOSAS Cloud Set Mist product.
- CTAs are visually distinct with dark borders
- Multiple CTAs provide navigation options
- Primary CTA 'Découvrir' is generic and non-specific
- No 'Add to Cart' or 'Buy Now' for the advertised product
- CTAs lead to category pages, not the product page
Page speed
3/10PageSpeed score of 29/100 indicates critically poor performance; converted to 0-10 scale = 2.9, rounded to 3.
- PageSpeed score of 29/100 is critically poor
- Multiple high-resolution product images likely unoptimized
- Heavy JavaScript and cookie consent modal add load time
Trust signals
7/10Sephora is an established, trusted beauty retailer with visible security features, return policies, and customer service information.
- Sephora branding and logo prominently displayed
- Clear service information: 'Retrait en magasin', 'Livraison standard', 'Paiement sécurisé', 'Retours sous 14 jours'
- Legal links and privacy policy visible in footer
- Cookie consent modal appears intrusive and may reduce initial trust
- No security badges or SSL indicators visible in screenshots
- Generic trust signals don't address the specific product claim
Mobile experience
6/10Layout appears responsive with stacked sections, readable text, and touch-friendly buttons, though navigation could be clearer.
- Vertical stacking of content sections for mobile viewing
- Large touch targets for buttons and navigation
- Search bar and menu accessible at top
- Cookie consent modal overlays content and requires dismissal
- Multiple promotional banners create visual clutter on small screens
- No clear path to the advertised product on mobile
Headline
2/10The page headline promotes a Sephora Collection gift set, completely unrelated to the KOSAS Cloud Set Mist advertised.
- Headline is about Sephora Collection, not KOSAS brand
- No mention of setting spray or product category
- Misaligned with ad promise of 'Cloud Set Mist at Sephora'
Social proof
6/10Star ratings visible on product cards (12 avis, 2381 avis, 44 avis, 10 avis) and customer review counts provide some credibility.
- Multiple products display 4-5 star ratings with review counts
- Sephora branding and established retailer presence
- Services section mentions 'Bar à sourcils Benefit' and customer benefits
- No reviews or ratings for the advertised KOSAS product visible
- Social proof is for other products, not the landing target
- No testimonials or user-generated content specific to Cloud Set Mist
Message match
1/10Ad promises 'Cloud Set Mist at Sephora' but landing page is Sephora homepage with no visible KOSAS product or setting spray.
- Ad targets KOSAS Cloud Set Mist; page shows generic Sephora promotions
- No product image, description, or details for the advertised item
- User lands on homepage instead of product page
Offer clarity
4/10Multiple competing offers visible (Sephora Collection gift, Happy Weekend -25%/-20%, Beauty days -20%) create confusion about what the actual offer is.
- Discount percentages clearly stated (-25%, -20%)
- Promo codes provided (REDSUMMER, AOUT2026)
- Three different promotional banners compete for attention
- No clarity on which offer applies to the advertised KOSAS product
- Generic Sephora promotions unrelated to Cloud Set Mist
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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.