Social Proof Tests on the Homepage: 4 Results, 6 Ideas

All 4 measured social proof tests on the homepage won.

The most useful pattern: proof worked when it supported a clear hero, and a press bar taking up prime space did better hidden.

Dave Diederen hid the "As Seen On" press bar for paid traffic and conversion rate rose +3.55%.

Oliver Kenyon's hero with a 4.9/5 rating, press logos and a clearer headline added +$78,454/month.

Four results is a small set, and three of them changed several hero elements at once. The grid lists every result and idea.

5measured results
5–0won vs lost or flat
6ideas to test
$191,420biggest est. monthly gain
A
→
B
+$78,454/month
Homepage hero with better imagery, 4.9/5 rating, press logos and clearer headline
HomepageReviews & star ratings@oliverkenyon
A
→
B
+$77,558 per month
Homepage hero: USP toolbar, 3 benefit bullets, full-width emotive CTA with social proof
HomepageSocial proof, authority & press@oliverkenyon
A
→
B
+9.71% revenue per visitor
Homepage rebuild with new hero, USP bar and reviews for a welding lens brand
HomepageHero & above-the-fold section@oliverkenyon
A
→
B
+2.61% revenue per visitor
Hid the 'As Seen On' press bar on the homepage for paid traffic
HomepageSocial proof, authority & press@DaveDiederen
A
→
B
+13.98% revenue per visitor
Tested 4 homepage hero banner variations (social proof position, trust badges, delivery/guarantee benefits, CTA hierarchy)
HomepageSocial proof, authority & press@DaveDiederen
A
→
B
Idea, no result yet
Add a review slider to the homepage
HomepageReviews & star ratings@DaveDiederen
A
→
B
Idea, no result yet
Homepage hero: model looking at text, proof, benefits, 'in just 2 steps' copy
HomepageSocial proof, authority & press@kasper_dolk
A
→
B
Idea, no result yet
Homepage hero: value prop, product-in-use image, CTA, instant social proof
HomepageSocial proof, authority & press@kasper_dolk
A
→
B
Idea, no result yet
Use a single static hero with a BOGO-style offer instead of a carousel
HomepageSocial proof, authority & press@DaveDiederen
A
→
B
Idea, no result yet
Homepage hero: social proof, benefits under hero, contrast overlay, thumb-reach button
HomepageSocial proof, authority & press@kasper_dolk
A
→
B
Idea, no result yet
Homepage with clear value prop, human faces and visual hierarchy
HomepageSocial proof, authority & press@kasper_dolk

Why social proof matters on the homepage

The homepage hero is often the first thing a new visitor sees.

Ratings, press logos and customer counts compete there with the headline and product for a few seconds of attention, so what you put first matters.

Measured results

Proof as part of a clearer hero

Oliver Kenyon ran two hero tests. One added better imagery, "Rated 4.9/5 by Thousands", recognition logos and a clearer headline: +$78,454/month and +$1.54 revenue per session.

The other added a USP toolbar, three benefit bullets and a full-width CTA backed by social proof: +$77,558/month and +$0.58 revenue per session.

Dave Diederen tested 4 hero banner variations covering social proof position, trust badges, delivery and guarantee benefits and CTA hierarchy.

The winner lifted conversion rate +15.52% and profit per visitor +14.29%. Dave didn't say which change drove it.

Taking proof away

Dave hid an "As Seen On" press bar (Glamour, Women's Health, InStyle, ELLE) for paid traffic.

Conversion rate rose +3.55%, revenue per visitor +2.61% and profit per visitor +2.45%, with AOV unchanged.

Losing or flat tests

No test was logged as a loss, but Dave's press bar test is a loss for that piece of proof.

Dave's reading is that paid visitors who just clicked an ad haven't formed an objection yet, so press logos high on the page took space from the product.

Dave stresses that press logos aren't bad in general.

The three hero tests each changed several things, so they don't show that social proof alone caused the lift.

Untested ideas

  • Reviews: Dave Diederen suggests adding a review slider to the homepage.
  • Proof in the hero: Kasper Dolk suggests instant social proof in the hero next to a value proposition and product-in-use image, with benefits under the hero.
  • Faces and hierarchy: Kasper suggests human faces, a model looking at the text and a clear visual hierarchy.
  • Offer first: Dave suggests a single static hero with a BOGO-style offer instead of a carousel.

Placement and design patterns that won

  • A short rating line ("Rated 4.9/5") inside the hero, next to a clear headline and CTA.
  • Proof sitting near the CTA rather than taking the top slot on its own.
  • For paid traffic, product content first and press logos lower or hidden.

Related tests elsewhere on the store

See homepage hero tests, homepage review tests, social proof on landing pages, social proof on product pages and the full social proof collection.

Questions

Should a homepage show press logos?

It depends on traffic. Dave Diederen hid an "As Seen On" press bar for paid traffic and conversion rate rose +3.55%.

Oliver Kenyon's hero with recognition logos, a rating and a clearer headline added +$78,454/month.

Where should social proof go on the homepage?

The winning tests put a short rating or proof line inside the hero, near the headline and CTA.

Dave Diederen tested social proof position as part of a hero test that won +15.52% conversion rate.

How much evidence is there for homepage social proof?

Four measured results, all wins, from Dave Diederen and Oliver Kenyon.

Three changed several hero elements at once, so treat them as hero tests that included proof.