Every euro you spend on ads ends at your checkout page.
Not at your homepage. Not at your product page.
At checkout.
And if your checkout has friction, confusion, or hidden data flows you don’t fully understand — you’re not just losing conversions. You’re losing trust. From your customers, and from yourself.
Before you increase your ad budget by a single euro, run through this checklist.
The Checkout Audit Checklist
SECTION 1: Data & Privacy
(These are the ones most store owners skip — and later regret.)
☐ 1. Check for Google Fonts API calls
Open your checkout page in Chrome. Open DevTools (F12) → Network tab → filter by “fonts.googleapis.com”.
If you see a request there, your checkout is calling Google’s servers every time a customer loads that page. Google receives that visitor’s IP address. That’s a third-party data transfer you may have never disclosed in your privacy policy.
This is one of the most common GDPR violations hiding in WooCommerce checkouts — and most store owners have no idea it’s happening.
☐ 2. Check for telemetry or usage tracking
Review the documentation or privacy policy of every plugin active on your checkout. Search specifically for the words “telemetry,” “usage data,” “analytics,” and “third-party.”
Many popular checkout plugins send anonymized usage data to their own servers — or to services like Mixpanel — by default. “Anonymized” doesn’t mean GDPR-exempt. It means you should know about it.
If you can’t find a straight answer in the documentation, that’s the answer.
☐ 3. Audit all external server requests from the checkout page
In DevTools → Network tab, reload your checkout page and look at every external domain receiving requests. You’re looking for anything that isn’t your own server.
Common culprits: font CDNs, analytics services, A/B testing tools, support widgets, and plugin telemetry endpoints.
For each one, ask: *Do I know what data this receives? Have I disclosed it? Would I be comfortable explaining it to a customer or regulator?*
If the answer to any of those is “I’m not sure” — that’s a problem worth fixing before you scale traffic.
☐ 4. Verify your privacy policy covers actual data flows
Most privacy policies are templates. Most of them don’t reflect the actual third-party calls happening on your store.
Cross-reference your privacy policy with the external requests you found in step 3. If your checkout calls services that aren’t mentioned, your policy is incomplete.
☐ 5. Confirm your plugin can be audited
Do you have access to the source code of your checkout plugin?
If it’s a GPL-licensed plugin, yes — you can open the code and verify exactly what it does. No trust required.
If it’s proprietary, you’re taking the vendor’s word for it. That might be fine. But you should know which situation you’re in.
SECTION 2: Friction & Conversion
☐ 6. Count the fields on your checkout form
Write down every field your checkout asks for. Now ask: which of these are actually required to complete this order?
Most WooCommerce default checkouts ask for 12–16 fields. Research consistently shows that reducing unnecessary fields — even by 2 or 3 — meaningfully improves completion rates.
A phone number field that nobody calls. A “Company name” field nobody fills. A separate billing address form for customers who ship to the same address. Every unnecessary field is a reason to hesitate.
☐ 7. Check your checkout on a real mobile device
Not Chrome DevTools mobile mode. An actual phone.
Scroll through the entire checkout. Try to tap each field. Look at the keyboard that appears when you tap an email field vs. a phone field vs. a postcode field. Watch how long it takes to reach the payment button.
If you’re frustrated by the experience, your customers are too — but unlike you, they’ll leave.
☐ 8. Measure where customers are abandoning
If you have Google Analytics or another analytics tool, find your checkout funnel report. Which step has the highest drop-off rate?
If you don’t have this data, set it up now. You cannot fix what you haven’t measured.
☐ 9. Test your checkout with a real transaction
Purchase something from your own store with a real card. Go through the entire process.
Notice what’s confusing. Notice what takes longer than expected. Notice whether the confirmation page is clear.
You’ve probably looked at your checkout a hundred times. You’ve probably never actually bought something through it.
☐ 10. Verify that error messages are human-readable
Trigger a checkout error deliberately — enter an invalid card number or leave a required field blank.
What does the error message say? Does it explain what went wrong and what to do next? Or does it show a technical code that means nothing to a customer?
A confusing error message at payment is one of the highest-friction moments in the entire purchase journey.
☐ 11. Check your checkout loading speed
Use PageSpeed Insights or GTmetrix to test your checkout page specifically — not just your homepage.
Checkout plugins can add significant page weight through unnecessary scripts, external font requests, and bloated CSS. Every additional second of load time costs you conversions, particularly on mobile.
☐ 12. Confirm your order summary is visible throughout checkout
Can your customers see what they’re buying and how much they’re paying at every step of the checkout process?
Customers who can’t see their order summary get nervous. Nervous customers abandon.
A persistent order summary — either as a sidebar on desktop or an expandable summary on mobile — removes that uncertainty and keeps customers moving forward.
What This Checklist Actually Shows You
Most of these items aren’t complicated to check.
But most store owners have never checked them.
And that’s the problem.
You’ve probably spent hours optimizing your ads, your product pages, your email sequences. You’ve looked at every part of your funnel except the last step — the one where money actually changes hands.
The stores that convert well at checkout aren’t necessarily running better ads or selling better products.
They know what their checkout is doing.
They know what data it sends and where. They know which fields are unnecessary. They know how it looks on a €300 Android phone. They know what happens when a card is declined.
And they’ve replaced the parts that create friction — including the invisible kind.
If Your Audit Turns Up Hidden Data Flows
Here’s what usually happens when store owners run through items 1–5 for the first time:
They find something they didn’t know was there.
A Google Fonts call they didn’t configure. A telemetry endpoint they’ve never seen. A third-party service receiving data from every customer who reaches checkout.
And the uncomfortable question follows:
If I didn’t know about this, what else don’t I know about?
That question is worth sitting with.
Because the answer should be: nothing.
You should know exactly what your checkout does. Every request it makes should have a reason you understand. No data should leave your store without your knowledge and consent.
That’s not an unreasonable standard. That’s what GDPR requires. And more importantly, it’s what running a trustworthy store means.
SwiftCheckout for WooCommerce was built to pass this checklist without any configuration:
– No Google Fonts calls — confirmed
– No telemetry — confirmed
– No external analytics — confirmed
– No third-party server requests — confirmed
– GPL licensed — you can audit the code yourself
Privacy-safe by default. Not by settings. Not by trust.
By design.
See what your own checkout is sending — before a customer, client, or regulator asks.
SwiftCheckout replaces WooCommerce's default checkout with a guided 3-step flow. No telemetry, no external font calls, no admin upsells.
Zero telemetry · GPL licensed · Live in under 30 minutes
Try SwiftCheckout on your store →Takes about 10 minutes to install. Nothing runs in the background you weren't told about.
Stop leaving money at the checkout page.
Every day with a broken checkout is revenue you earned but didn't keep. Fix it today for €89.