DigitalKnow-How
When we will tell you that automation is not worth it
A rare process, an off-the-shelf service, a prop under a missing feature and a thing that is faster done by hand. Four times we said no, and why.
What it means when a supplier says "in the order of weeks"
An estimate in weeks is not a deadline. How to turn it into stages with a measurable output, what to do when it slips, and why scope changes quietly.
The date format in a notification: the cheapest error with the most expensive consequence
A swapped day and month cost a client a misdelivered order. What an order notification has to contain so a person reads it right first time. And the phone number without its plus.
A list of permitted values that no real person fits into stops the whole process
A nationality you cannot select stops the whole person being entered. Where these lists come from, why only real use finds the gaps, and what to check yourself first.
Acceptance on your own data, not on a demo
A demo runs on data the supplier picked. What to put into acceptance so the errors show up before signature, not in the first week of real use.
AI prepares the draft. The signature stays with you
Where a draft ends and a decision only a person can make begins. What must not pass through the model unchecked, and how that is enforced technically rather than promised.
Four things without which an integration waits on you, not your supplier
Access in a defined scope, samples of real data, third-party accounts and one person who can decide. What your supplier needs from you straight away.
What exactly goes to the language model and what does not
Anonymisation before sending, your own gateway to the models, and a scripted branch for sensitive queries. Seven questions to check it with any supplier.
Voice input into the system: what we learned building our own tool
5.04 s per phrase against 1.98 s after swapping the model. But the faster model lost on proper nouns. Measured 3 September 2026, and what follows from it.
E-shop accessibility: what the law requires and since when
The accessibility act has applied to e-shops since 28 June 2025. Who it covers, what gets measured, where shops fail and how to check it yourself in an hour.
GPSR: what information a product must show in an online shop
The four mandatory items under GPSR Article 19, where to get them, how to enter them in Shoptet and Shopify, and what to do about dropshipping. With article references.
What changed in Shopify and Shoptet: June to August 2026
Seven changes in Shopify and Shoptet from June to August 2026, each with who it affects and what to do about it. Including what we could not find in their sources.
Migrating an e-shop without a drop in Google: URL map, 301s and the first 30 days
How a 1:1 URL map is built, what to do with parameters and pagination, and what to watch in Search Console for the first 30 days. Including how to verify it yourself.
B2B e-shop: per-customer price lists, prices excluding VAT and buying on invoice
Individual price lists, prices excluding VAT, buying on invoice and order approval. What the platform does itself, what you buy on top, and why headless B2B starts at 250,000 CZK.
Supplier feeds and dropshipping: hourly XML with no manual intervention
Category mapping, margin rules, currency conversion at the CNB rate and automatic exclusion of items. What breaks in dropshipping and how to tell an import has stalled.
Why your GA4 revenue does not match: data layer, consent and duplicates
A missing data layer, value without currency, duplicate purchase events, consent and thresholding. Six causes of the gap between GA4 and accounting, and how to tell them apart.
Shoptet API and the Pohoda connection: what gets automated and what stays manual
How the Shoptet API works, why the shop owner does not get the key, and exactly what Shoptet and Pohoda exchange. Including the list of data that never moves.
Heureka and Zboží.cz: a feed that does not burn budget or break stock
How the click price is calculated, why availability is sent separately, and how many clicks your margin can carry. Feed rules for Heureka and Seznam Nákupy, dated.
When Shoptet stops being enough: five signals it is time to move
Five measurable signals that make leaving Shoptet worthwhile, and why most shops never hit any of them. With the maths on what staying costs.
What you can change in a Shoptet template and where the ceiling is
What you change on Shoptet with the designer, custom CSS and HTML codes, where the 8,192-character limit sits and what needs Premium. From the docs, with sources and dates.
Why a fast Shopify is slow: the platform answers in 0.7 s, the page takes the rest
The Shopify server answers in 0.73 s, but the main element appears only at 19.2 s. We show the measured numbers, the causes and the order fixes are done in.
When templates get out of hand: 323 templates on 193 structures
A theme after four years of edits: 323 templates on 193 structures, 723 disabled sections and dead code. How to spot it and what to do instead.
Shopify Markets and translations: where SEO gets lost during expansion
Where SEO gets lost on Shopify Markets: hreflang only for markets with their own URL, untranslated strings and JavaScript translations. With our own measurements.
Shopify Plus and headless: when it makes sense and when it is throwing money away
When Shopify Plus and headless make sense and when they do not. The threshold in numbers: plan difference, gateway fee, what is Plus-only. With the maths.
The price of an e-shop: why one costs 35,000 CZK and another 250,000 CZK
What an e-shop costs on Shoptet, Shopify and WooCommerce, what pushes the price up and what is not included. A budget broken into items and hours, not a range.
What an e-shop costs per month: fees, apps, shipping and payments
What running an e-shop costs monthly: Shoptet and Shopify tariffs, transaction fees, shipping, apps and comparison sites. Prices with a source and a date, not estimates.
Before you pick a platform: six things that decide more than technology
Catalogue, product data, stock, invoicing, markets and who runs it. Six answers that choose the platform for you. Start with the platform and you migrate in two years.
How to Clean a Hacked WordPress Site
A hacked WordPress site, cleaned properly: find the backdoors, remove the injected code, close the entry point and get your listing in Google back.
This Site May Be Hacked: How to Remove Google's Warning
Google flagged your site as hacked. What the label means, why it appeared, and the exact sequence that gets it removed.
App audit: what apps take from you even after uninstalling
An uninstalled app stays in the theme: 6.9 MB of images, dead snippets and third-party scripts without defer. How to audit your apps yourself, with commands.
Japanese Keyword Hack: A New Virus Targeting WordPress
Thousands of Czech sites are infected. How to defend yourself and how to get rid of this SEO spam attack for good.
How to Secure WordPress: 7 Steps Against Hackers
A complete technical guide to securing your WordPress site from day one. Don't let your site become a bot's next victim.
5 Business Processes You Should Be Automating
Find out which tasks are needlessly stealing your time and how to automate them efficiently with Make or Zapier.
Shopify vs Shoptet: Which Platform Wins in 2026?
A detailed technical and business comparison of the two most popular e-commerce platforms for ambitious projects on the Czech market.
n8n: The Open-source Alternative to Zapier
Why companies are switching to n8n and how to automate at a fraction of the cost. Self-hosted, unlimited, and with full control over your data.
Get the good stuff in your inbox
Once a month. No spam. Just real case studies and useful technical tips to move your business forward.