Check product pages against their own datasheets
Every statement on a product page is compared with the documents the shop itself links: datasheets, installation drawings, manuals, EU energy labels. Every difference appears with the exact passage in the document.
What a finding looks like (fictional example)
Method
- Find the product pages
through the shop's sitemap. No login, nothing to install.
- Read the documents
the PDFs each page links, with their tables and columns as they are.
- Check every statement
supported, partly supported, contradicted or not in the document.
- Show the evidence
Every finding quotes the document word for word, with its page. That the quote really is there is checked by machine, not claimed by the language model.
How to use EVIDELTA
One-off check
The whole catalogue, once. You receive every difference with both passages, sorted by severity, as a report and as a spreadsheet.
Ongoing check
New and changed product pages and documents are checked again. You only hear about what is new.
Integration
Findings right in the shop's admin, or through an API for your own systems and AI agents. In preparation for Shopify and Shopware.
The price depends on the size of the catalogue and is given on request. Ask by email
Questions
What does EVIDELTA read?
Only public product pages and the documents linked there, as a customer sees them. No access to the shop is needed. The shop's robots.txt is respected, and pages are fetched at a gentle pace.
Which documents are checked?
Datasheets, installation drawings, manuals, safety data sheets, declarations of performance and conformity, and EU product information sheets (energy labels). The document has to contain text; scans without a text layer are not read yet.
How reliable are the findings?
Every passage is located in the document by machine before anything is compared; a quote that is not in the document cannot produce a finding. Whether a difference is an error is decided by a person in the end: findings are pointers with evidence. How often the tool is right and what it misses is measured by a preregistered study; the figures appear here once they have been checked by hand.
What counts as a difference, and what does not?
The same value in another unit (1 MPa = 10 bar), rounding, and values inside a range the document gives are not counted as contradictions. For your own tolerances and deliberate exceptions there are rules per shop.
Which shops and languages?
Any shop system with a sitemap, product pages in English or German.
What does EVIDELTA not do?
It changes nothing in the shop, does not check prices, delivery times or reviews, and does not say which of the two statements is right: the document may be the outdated one.