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PDP-003 ›
PDP-002Product page · decisionHigh

Add-to-cart CTA above the fold on mobile

Add-to-cart button appears above the fold on mobile viewport.

Check my store for this rule →Cite this
Free · no card · runs all rules at once · judged on 40 stores · updated
68%of the audited stores we could judge fail this rule
10 pass3 partial27 failPublished audits · September 2026
Stores judged
40
of 40 published audits
Score weight
1.1pts
of the 100-point score
Page share
30%
of the score is the product page

What earns each verdict

Same outcomes on every UXFix rule · how verdicts work
✓ Pass10

ATC button's top edge ≤ 844px on 390x844 viewport (visible without scroll).

~ Partial3

Sticky ATC appears on scroll but not above fold on load, check PDP-003 separately.

✕ Fail27

ATC button requires scrolling to reach on mobile.

not assessable is recorded when the rule applied but the store could not be judged on it (bot protection, a region lock, a step we could not reach), and not applicable when the store has nothing for the rule to judge. Those stores are left out of every number on this page, never guessed. Why we do that
Why it matters

The Add-to-Cart button is not visible above the fold on mobile. Shoppers have to scroll to find how to buy.

On mobile especially, buyers scan the top of the page and decide within seconds. If the primary purchase button isn't in that first view, many will leave before scrolling.

That sentence is the one a failing store sees in its own UXFix report.How rules are weighted and scored →
40 audited stores, one dot each
27 fail
PassPartialFail

Every published UXFix audit this rule could be judged on, as of 23 Sep 2026. A count of real stores, not a simulation of yours.

How we test it

Scripted walk, fresh signed-out browser · the full walk
  1. 1Fresh browserSigned out, cookies cleared, desktop and mobile viewports, the store's live theme.
  2. 2Open a productA real, in-stock product page, found the way a shopper finds one.
  3. 3Judge this ruleAgainst the standard above, on what a shopper can see.
  4. 4Record the verdictPass, partial or fail, saved with the screenshot it was judged on.
What the agent looks for
Add-to-cart button appears above the fold on mobile viewport.
Confidence
The rulebook rates this check’s confidence High. When the agent is not sure, the rule is recorded as not assessable rather than guessed.
Not judged
0 of 40 published audits: the rule did not apply or could not be judged. Dropped, never guessed.

The numbers behind the rule

Published UXFix audits · more statistics
Published audits failing this rule
and 15 more, newest audit first.
Where this rule sits among 103 UX rules
Most-failed rank
#25
Score weight rank
#26
Fail rate
68%

Score weight: a fail costs 1.1 pts of of the 100-point score; a partial costs half that. Most-failed rank is among the 79 rules with enough published audits to report a rate.

The issue, on real stores

from each store's own published audit

9 of the stores that fail this rule, each shown on the screen it was judged on, with the problem area marked. The picture is the store's own capture on the date shown, and stores change.

18 more are in the list above, each with its own audit.

The fix

The same steps a failing store sees in its report

A pass means: ATC button's top edge ≤ 844px on 390x844 viewport (visible without scroll).

Severity
High
Score gain
+1.1pts
Page
Product page

Score gain is roughly what a fail-to-pass change adds; rules that could not be judged are left out, which can move it a little. Re-run a free audit after the change ships to confirm the verdict moved.

Checklist for the pass
0 of 3

Tick each step as you ship it. The audit judges the live store, so re-run it once all of them are done.

Every store that fails this rule

The 27 audited stores that fail Add-to-cart CTA above the fold on mobile, with each store's published score and the day it was audited.
#StoreScoreAuditedPublished audit
1Leathermanleatherman.com65Open audit
2Bxbx.eu46Open audit
3Barnesandnoblebarnesandnoble.com61Open audit
4Mujimuji.us61Open audit
5Arhausarhaus.com60Open audit
6Tupperwaretupperware.com60Open audit
7Thebrickthebrick.com61Open audit
8Wpswingswpswings.com57Open audit
9Keenfootwearkeenfootwear.com56Open audit
10Everlaneeverlane.com62Open audit
11Davidsbridaldavidsbridal.com58Open audit
12Tomstoms.com52Open audit
13Bodenboden.com64Open audit
14Eddiebauereddiebauer.com62Open audit
15Forever21forever21.com57Open audit
16Gymsharkgymshark.com57Open audit
17Reebokreebok.com58Open audit
18Reebokreebok.com57Open audit
19Fashionnovafashionnova.com56Open audit
20Kathmandukathmandu.com.au63Open audit
21Toysrustoysrus.com57Open audit
22Brewdogbrewdog.com56Open audit
23Zulilyzulily.com61Open audit
24Mejurimejuri.com65Open audit
25Timextimex.com54Open audit
26Citstorescitstores.com65Open audit
27Iliabeautyiliabeauty.com62Open audit

What our auditors say about this rule

The buy button is the page's whole job. If a shopper has to scroll to find it, the page has asked them to work for the privilege of spending money.
Abdulhameid Grandoka, Co-founder, UXFix

Written by the person who audits this rule, and reviewed every quarter.

Keep going

All rules →
RulePDP-003
Sticky add-to-cart on long product pagesProduct page · Medium ›
RulePDP-004
Shipping cost or estimate discoverable from PDPProduct page · Critical ›
RulePDP-005
Delivery/arrival date estimate shownProduct page · High ›
RulePDP-006
Stock/availability state explicit (in stock, low stock, out of stock)Product page · High ›
RulePDP-009
Selected variant state unambiguous (visual + text confirmation)Product page · Medium ›
RulePDP-011
Product title includes brand + descriptive attributes (not SKU-only)Product page · Low ›
RulePDP-013
Quantity selector present and easy to use (tap-friendly on mobile)Product page · Low ›
RulePDP-015
Image zoom available on desktop and mobileProduct page · Medium ›
Cite this

«27 of 40 online stores audited by UXFix fail the rule "Add-to-cart CTA above the fold on mobile" (PDP-002) as of September 2026. UXFix, uxfix.ai/audits/rules/add-to-cart-above-the-fold»

Rule record · JSON
Dataset →
{
  "id": "PDP-002",
  "name": "Add-to-cart CTA above the fold on mobile",
  "area": "pdp",
  "severity": "high",
  "weight": 1.084,
  "published_audits": {
    "judged": 40,
    "pass": 10,
    "partial": 3,
    "fail": 27
  },
  "updated": "2026-09-23"
}
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