The Sellarix blog
Ecommerce-AI trends, playbooks and product news, written for operators.
01 / Favourites
Favourite posts
The EU right of withdrawal in 2026: the new withdrawal button, and how to comply on any platform
The EU right of withdrawal has not changed, but from 19 June 2026 online stores must add a withdrawal button. What that means, whether it hits UK sellers, the stakes, and how to comply on Shopify, Magento, BigCommerce, PrestaShop and WooCommerce.
13 Jun 2026 · 31 min read
The AI Reckoning: Token Prices, Slop, Safety Warnings and the Data Wall the Whole Industry Is Driving Toward
There is a temptation to treat the big AI stories of the last two years as separate weather systems. Over here, the price of a million tokens keeps...
28 May 2026 · 52 min read
Agentic checkout just went live in the UK: what Hey Savi, PayPal and Debenhams mean for your store
On 2 June 2026, at Money20/20 in Amsterdam, PayPal and a London fashion-tech startup called Hey Savi announced what they describe as the UK's first...
3 Jun 2026 · 12 min read
02 / Blog
Latest articles
When to Start A/B Testing (VWO vs Optimizely vs Intelligems)
Here's the most expensive mistake I see in conversion optimization, and it has nothing to do with the tool you pick. It's running an A/B test,...
9 Jun 2026 · 5 min read
Getting Your Store ADA and EAA Compliant (and Why Overlay Widgets Are a Trap)
A store owner emailed me last year, half relieved and half smug, to say he'd "sorted out accessibility." He'd pasted one line of JavaScript into his...
6 Jun 2026 · 6 min read
AI in Ecommerce 2026: What's Actually Worth Adopting Now vs the Hype
If you run a store, you're being sold AI roughly forty times a day right now. Every tool added "AI" to its name, every newsletter promises agents...
31 May 2026 · 5 min read
Your DTC Analytics Stack: GA4 vs Triple Whale vs Server-Side Tracking
You launched a Meta campaign, the ad manager says it drove 40 purchases, Shopify shows 22, and GA4 quietly insists it was 31. Three numbers. One...
25 May 2026 · 6 min read
How Many Apps Is Too Many? The Hidden Cost of an Over-Stacked Store
Open your Shopify admin and count your apps. Go on, I'll wait. If the number made you wince a little, this one's for you. I keep meeting operators...
22 May 2026 · 6 min read
Build vs Buy vs Hire: When to Bring In a Developer or Agency
You've got a problem in your store. Checkout is leaking. Your product feed is a mess. You need a bundle feature that no app quite does right. And now...
19 May 2026 · 5 min read