travel / production case study

the mobile-first rebuild that won Yippee Malta their own checkout.

Malta's leading tour operator rebuilt on a mobile-first design system, with a custom checkout against their proprietary booking API.

90+Core Web Vitals, both sides
6languages, 254 strings
100%custom checkout, no WooCommerce
depositdeposit + coupon + affiliate flow
The system

the checkout that models the real operation.

01

Live availability, re-checked at pay

The proprietary calendar API is queried at payment time (with a short safety cache) so a slot can't be double-sold between browse and book.

02

Deposit payments over JWT

Customers pay a deposit to reserve, with the payment session signed and verified — the reservation only completes once the payment and availability both clear.

03

Coupons & affiliate attribution

A coupon engine on the total, and affiliate credit carried through the booking — every existing affiliate URL preserved through the migration, because that is where the bookings come from.

04

Self-drive vehicle rules

For quad and buggy tours, the checkout validates vehicles against drivers and passengers, shifting the price tier to match — driver-only or driver-plus.

05

Age-tier validation

Adult, child and infant counts cross-checked against each tour's rules, validated inline before payment is ever attempted.

06

A tour-finder quiz

A guided quiz — when you'd like to start, preferred time of day — that routes visitors to the right tour instead of a category wall.

Architecture

A production stack built for the work.

  • WordPress
  • PHP
  • Redis
CMS
Custom WordPress theme (ACF modules) on Laravel Forge
Frontend
Hand-audited HTML/CSS/JS, WebP imagery — 90+ CWV
Checkout
100% custom — proprietary availability API, JWT deposit payments, coupons, affiliates
i18n
Polylang — EN + French, Italian, Spanish, Polish, German (254 strings)
Cache
Redis object cache + short-lived availability safety cache
Extras
Tour-finder quiz, abandoned-cart recovery, SEO schema
Clutch★★★★★5.0 / 5.0

Across 18 independently published client reviews

They have a deeper technical knowledge than any web designer I've met to date.

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