EU Omnibus Discount Checker — 30-Day Lowest Price Audit

Check whether an EU shop's discount is real. Paste product URLs and get one verdict per product — compliant, overstated, or missing the legally required 30-day lowest price — with the evidence text from the page. JSON, CSV or Excel, via API, schedules, n8n, Make, Zapier and AI agents (MCP). $0.006 per product checked, no subscription.

Independent tool. Not legal advice. Reads publicly visible product pages only — no login, no personal data.

What does EU Omnibus Discount Checker do?

• Reads the current price, the "was" price, the % badge and the 30-day lowest price label from an EU product page.
• Calculates the real discount against the 30-day lowest price — the reference EU law requires — and compares it to what the shop claims.
• Recognises the label wording in 10 languages plus English (HU, DE, PL, CZ, SK, RO, FR, IT, ES, NL, EN) and handles local price formats (1 299 Ft, 1.299,00 €, 24 990 Kč).
• Needs no price history — it reads the label shops are obliged to display, so the first run already gives answers.

Who is it for?

You are…	You use it to…
Deal site or affiliate publisher	Verify discounts before publishing them
E-commerce pricing / compliance manager	Audit your own promo pages before a campaign goes live
Competitive-intelligence analyst	Compare competitors' claimed vs real discounts every week
Journalist or consumer organisation	Sample hundreds of Black Friday deals in minutes

Ready-made examples (one click)

Example	What you get
Audit Black Friday discounts on German shops	Verdict per product for major German retailers
Check fake discounts on Hungarian webshops	Hungarian shops, HUF prices, Hungarian labels
Audit Polish e-commerce promotions for Omnibus compliance	Polish shops, PLN, "najniższa cena z 30 dni"
Verify deal discounts before you publish them	Mixed EU shops, plain-language explanations
Monitor competitor discount claims weekly	Schedule-ready competitor watchlist

How to use it

1. Paste product page URLs (or open an example above).
2. Set Max products — this is also your cost cap.
3. Click Start. Filter the dataset by verdict or download it.

Input

Field	Required	Description
productUrls	yes	Product pages (not category pages)
maxProducts	no	Cap on products and cost. Default 100
renderMode	no	auto (default) tries fast HTML first, then a real browser if no price is readable. html never uses a browser, browser always does
tolerancePct	no	Allowed rounding gap in percentage points. Default 1
includeEvidenceScreenshot	no	Save a full-page screenshot as evidence ($0.01 each). Pages are rendered in the browser
countryOverride	no	Force a country if auto-detection is wrong
proxyConfiguration	no	Apify Proxy by default; use residential proxies in the shop's country for big shops

Output

{
  "productUrl": "https://shop.example.hu/product/123",
  "domain": "shop.example.hu",
  "country": "HU",
  "currency": "HUF",
  "productName": "Wireless headphones X",
  "currentPrice": 34990,
  "referencePrice": 49990,
  "referenceType": "strikethrough",
  "lowest30dPrice": 36990,
  "lowest30dLabel": "Az elmúlt 30 nap legalacsonyabb ára: 36 990 Ft",
  "claimedDiscountPct": 30,
  "discountVsReferencePct": 30.0,
  "discountVsLowest30dPct": 5.4,
  "verdict": "pct_overstated",
  "severity": "high",
  "explanation": "Shown as -30%, but the price is only 5.4% below the 30-day lowest price.",
  "renderedWithBrowser": false,
  "screenshotUrl": null,
  "sourceUrl": "https://shop.example.hu/product/123",
  "status": "ok",
  "scrapedAt": "2026-11-27T08:00:00.000Z",
  "schemaVersion": 1
}

Verdict	Meaning
compliant	Discount matches the 30-day lowest price (within your tolerance)
pct_overstated	The shown discount is bigger than the real one vs the 30-day lowest price
missing_lowest_30d	A discount is shown but the 30-day lowest price is not
rrp_comparison	Only a recommended retail price comparison — whether the rule applies depends on the member state, review manually
no_discount_claimed	No discount on the page
price_not_found	Nothing readable (also blocked pages, 404, robots.txt skips) — free, with the reason in explanation

A run summary (counts per verdict, failed URLs, stop reason, charged events) is saved to the OUTPUT record of the key-value store.

How much does it cost?

Event	Price	When
Actor start	Apify default	Once per run
Product checked	$0.006	Each product with a verdict
Evidence screenshot	$0.01	Only if you switch it on

100 products ≈ $0.60 · 1,000 products ≈ $6. Pages that fail, are blocked or show no price are not charged. Set Max cost per run in the run options for a hard budget — the Actor stops as soon as it is reached. Higher Apify plans get Store discounts automatically.

Schedule it

Black Friday week: run daily at 08:00 on your watchlist. Rest of the year: weekly (Monday 07:00) is enough to catch campaign changes.

Use with AI agents (MCP)

"Use kondasviktor/eu-omnibus-discount-checker to check whether these 20 Black Friday deals are real discounts under the EU 30-day rule."

FAQ

What is the EU 30-day lowest price rule? Since the Omnibus Directive, an EU shop that announces a price reduction must show the lowest price it charged in the previous 30 days, and the EU Court of Justice confirmed the advertised percentage must be calculated from that price.

Is this legal advice? No. It flags discount claims for human review. Member states allow some exceptions (e.g. perishable goods, progressive discounts, shorter look-back for new products).

Why price_not_found? The page didn't expose a readable price — try renderMode: browser or a residential proxy. These rows are free.

Which shops work? Any EU shop with public product pages. Big shops sometimes block datacenter IPs — use a residential proxy in the shop's country. The Actor respects each shop's robots.txt and skips disallowed URLs.

Can you add a language or shop? Yes — open an issue with a product URL. Fixes within 48 hours.

Limitations

• Product pages only in v1 (no category crawling).
• Uses the default variant on multi-variant pages.
• Cannot prove what the price was 30 days ago — it checks what the shop declares. Pair it with a weekly schedule to build your own history.
• Label wording is matched per language; an unusual wording shows up as missing_lowest_30d — report the URL and it gets added.

Related Actors

• Peppol e-invoicing checker — Peppol registration, document types and access-point details
• Shopify Discount & Promo Tracker — sale depth and promo trends on any Shopify store
• Product Catalog Scraper — full product lists with prices
• Website Change Monitor — watch promo / PDP pages after an audit
• OpenAI Ads Check & Convert — get your shop's products ready for ChatGPT ads

All Actors

---

Built by Viktor Kondas · Vibe Coder's Life · Custom audits: hello@vibecoderslife.com