Greenwashing Checker Tool: How to Audit Your Website for EU Compliance

What a Greenwashing Checker Does

At its core, any greenwashing checker does three things: it crawls your content, matches it against known patterns of non-compliant green claims, and flags what needs attention. The sophistication varies enormously between tools.

A basic checker might scan for a list of banned words. A sophisticated one — like ours — combines pattern matching with context analysis:

• Term detection — identifying banned terms from the EU's official ECGT list ("eco-friendly," "green," "sustainable," "natural," "climate neutral," etc.)
• Context scoring — distinguishing between a company describing its products as "eco-friendly" (banned without substantiation) vs. quoting a third-party review
• Certification cross-reference — checking whether a claim is backed by any recognized certification visible on the same page
• Visual signal detection — flagging pages with heavy green color schemes combined with environmental language

The result is a compliance score and a prioritized list of claims requiring attention. Related: What Is Greenwashing?

How Our Tool Works

Our greenwashing checker uses a three-layer analysis pipeline:

Layer 1: Structural crawl

We crawl your website URL and extract all visible text content — page titles, H1–H3 headings, product descriptions, meta tags, alt text on images, and CTA text. These are the locations where marketing claims concentrate.

Layer 2: ECGT pattern matching

We run your content against our database of 28+ banned and restricted terms from the ECGT Directive, plus 40+ contextually risky phrases identified from European advertising authority rulings since 2020. Each match is assigned a severity level:

• Red — Terms banned outright by ECGT without any substantiation ("eco-friendly," "green" as product descriptor, "sustainable" without scope definition)
• Amber — Terms permissible only with verification and disclosure ("carbon neutral," "net zero," "climate positive")
• Yellow — Terms flagged by advertising authorities in multiple EU countries ("natural," "pure," "clean")

Layer 3: AI context analysis

We use ClimateBERT — a large language model fine-tuned on climate and environmental text — to assess whether flagged claims are presented with substantiation signals (links to data, certification logos, specific percentages, methodology references) or bare assertions. Claims with substantiation signals are downgraded. Bare assertions in prominent positions are escalated to critical priority.

See also: How a Green Claims Scanner Works — Technical Guide

10-Point Manual Greenwashing Checklist

Automated tools are powerful but not sufficient. Use this checklist for manual review of any environmental marketing claim:

1. Specificity test — Is the claim specific enough to be verifiable? "Packaging made from 80% recycled PET" passes. "Eco-friendly packaging" fails.
2. Evidence availability — Is the supporting evidence accessible to consumers? Not just internally — accessible via a link, QR code, or downloadable document.
3. Third-party verification — Is the claim backed by a recognized independent certification? Claims without certification coverage are highest risk.
4. Scope clarity — Is the scope clear? "Our company is sustainable" differs from "this product is sustainable." Mixing scope is a common error.
5. Carbon offset disclosure — If any claim relies on carbon offsets, is this clearly disclosed? What proportion comes from actual reduction vs. offset purchases?
6. Lifecycle perspective — Does the claim account for the full lifecycle? Manufacturing only isn't enough if downstream impacts are material.
7. Comparative claims — If you claim to be "more sustainable than X," is the comparison fair, accurate, and disclosed?
8. Future claims labelling — Are forward-looking claims clearly labelled as targets, not current status? Are they backed by a credible plan?
9. Visual claim audit — Does your visual design imply environmental benefits beyond what's stated in text?
10. Total claim inventory — Have you identified every environmental claim across all channels — website, packaging, social media, investor presentations, job ads?

Score yourself: 9–10 compliant = low risk. 6–8 = moderate risk. Below 6 = high risk, prioritize immediately.

Key Banned Terms to Check

The full list is available in our banned green terms database.

How to Interpret Your Results

Priority 1: Red flags in hero sections and H1s

Any banned term appearing in your page title, H1, or hero section copy is your highest priority. These are the most prominent claims regulators look at first. Remove or rewrite immediately.

Priority 2: Red flags in product descriptions

Product pages with banned terms directly describing the product are second priority. Product-level claims are more likely to be pursued in consumer enforcement.

Priority 3: Amber flags without visible substantiation

Carbon offset terms, future-facing claims, and comparative claims that lack visible evidence links or certification logos. Not banned outright but need supporting material.

Priority 4: Yellow flags in secondary content

Restricted terms in blog posts, FAQs, or footer content. Lower regulatory risk but worth addressing in a comprehensive cleanup.

Beyond Automated Scanning

A greenwashing checker is a starting point, not a compliance certificate. Automated scanning cannot verify whether your LCA methodology meets ISO 14040/14044 standards, assess whether your carbon offset scheme meets ECGT additionality requirements, review physical packaging, or evaluate the accuracy of specific percentage claims.

For full compliance, combine automated scanning with manual legal review and third-party certification. The Green Claims Directive will ultimately require accredited verifier sign-off on substantive environmental claims.

How Often to Check

• On demand — any time new environmental claims are published
• Weekly — for active marketing teams publishing regularly (Pro plan)
• Daily — for enterprise businesses with large content estates (Business plan)
• After regulatory updates — whenever the EU publishes new guidance, re-scan your entire estate

Our free tier includes 3 scans per day covering the homepage. Paid plans extend to full-site crawling with email alerts.