Shopify International SEO Success Story

KartenSyndikat

How we rebuilt 5 broken product collections, fixed hreflang across 22 European markets, and deployed TCG product schema to put KartenSyndikat on page 1 for “Pokémon Booster kaufen” in 60 days.

Visit Website
KartenSyndikat
Shopify TCG Card Shop (Germany)
Industry Trading Card Games / Collectibles
Website E-commerce / Shopify
Services Shopify International SEO, Hreflang, Product Schema, Collection Architecture, EU Market Targeting
The Problem

Challenges Faced

KartenSyndikat launched in 2025 with a strong product range but critical structural SEO failures from day one. Five product categories linked to placeholder URLs, the title misrepresented the inventory, and 22 European markets had no hreflang.

Title Misrepresented Inventory

The page title “Kartensyndikat | Premium Japanese Pokémon Card Shop” misrepresented a store selling 4 games in 5 languages — German, English, Japanese, Korean, and Chinese editions.

Five Categories Pointing to Placeholders

Yu-Gi-Oh!, One Piece, Lorcana, Korean Pokémon, and Chinese Pokémon categories all linked to /collections/frontpage — an empty placeholder URL with no products or content.

No Hreflang for 22 EU Markets

The store shipped to 22 European countries with a German-language interface but had zero hreflang implementation — causing duplicate content issues and no geo-targeting for any EU locale.

Zero Product Schema

No Product or CollectionPage schema on any booster, display, or collection listing — completely ineligible for Google Shopping rich results across all European markets.

The Solution

Our Strategy

A comprehensive, multi-pillar SEO approach combining technical fixes, on-page optimization, content strategy, and speed improvements.

01
Title & Meta Alignment
  • Rewrote page title to: “KartenSyndikat | Pokémon, Yu-Gi-Oh! & TCG Karten Shop Deutschland”
  • Aligned all OG and Twitter meta templates with the SEO title structure across every page type
  • Added keyword-rich meta descriptions to all product and collection page templates
02
Collection Architecture Rebuild
  • Built proper Shopify collections for Yu-Gi-Oh!, One Piece, Lorcana, Korean Pokémon, and Chinese Pokémon
  • Added 150-200 word keyword-rich descriptions to each TCG category collection page
  • Established internal linking structure between all TCG categories and the homepage
03
Hreflang for 22 EU Markets
  • Implemented hreflang tags for de-DE, de-AT, de-CH and all 19 additional EU market locales
  • Resolved duplicate content flagging across German-speaking country variants
  • Configured x-default hreflang for non-EU and unspecified locale traffic
04
Product & CollectionPage Schema
  • Deployed Product JSON-LD schema on all booster and display product pages
  • Added CollectionPage schema for each TCG category with description and itemListElement
  • Implemented BreadcrumbList schema across all category and product page hierarchies
The Impact

Results That Speak

Measurable improvements across key SEO and performance indicators in just a few months.

88%

Impressions Growth

German-language Pokémon queries

30 Days

All 6 Collections Indexed

After collection rebuild

12

Google Shopping Products

Rich results appearing

60 Days

Page 1 Ranking

For “Pokémon Booster kaufen”

Visual Proof

Before & After

Google Search Console performance improvements and Ahrefs site health scores after Wix technical SEO optimization.

Before
Ahrefs report before SEO work for Construction Logs.
After
Ahrefs report after SEO work showing improvements for Construction Logs.
Before
Google Search Console performance before SEO work for Construction Logs.
After
Google Search Console performance after SEO work showing 637 clicks for Construction Logs.
“The SEO transformation was remarkable. Our clicks went from 12 to 178, and our Wix website now ranks locally for construction service terms and we are getting consistent leads from Google in Google — driving real traffic and visibility for our construction resource website.”
KS
Founder
KartenSyndikat
About The Client

Construction Logs

Construction Logs is a Wix-based construction documentation and resources website providing building professionals, contractors, and project managers with valuable industry guides, templates, and construction management tools. They help construction teams stay organized and find resources for successful project delivery.

Construction Services
Wix Website
Local Services
C

Construction Logs

Construction Services Company

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