AEO Audit is a free tool that scores B2B SaaS websites for AI search visibility — how likely they are to be cited by ChatGPT, Perplexity, and Google AI Overviews when B2B buyers search.

What is AI Engine Optimization (AEO)?

AI Engine Optimization (AEO) is the practice of structuring content, entity signals, and technical infrastructure so that AI engines cite your brand in generated answers. It extends traditional SEO to cover ChatGPT, Perplexity, Gemini, and Google AI Overviews.

Yes. AEO Audit is free. Enter any B2B SaaS brand and receive a full AI visibility score with prioritised recommendations.

How does AEO Audit score websites?

AEO Audit scores across six pillars: AI Visibility (22%), Brand Authority (23%), Content Quality (18%), Platform Optimization (15%), Structured Data (12%), and Technical AEO (10%). Each pillar reflects specific signals that AI engines use when deciding which sources to cite.

Subcategory · AI Citation Index

ESG & Sustainability

ESG and sustainability software is a fragmented category with no single consensus pick. Watershed and Persefoni trade the top two slots, each surfacing in 85–94% of buyer queries across all four engines (ChatGPT, Claude, Gemini, Perplexity). SpheraCloud, Workiva, Salesforce Net Zero, Diligent, and EcoVadis all cluster within 12 points of each other — a seven-way tie for AI eyeballs. Sweep lands in 69% of discovery prompts but disappears on one engine, leaving fragile visibility outside ChatGPT, Claude, and Gemini. This is a fragmented category: no brand owns more than half the market's AI attention, and a dozen platforms split citations nearly evenly.

35 discovery queries · refreshed May 1, 2026

Discovery stage

The shortlist

Across 35 buyer-style "ESG & Sustainability" queries

Most cited · ESG & SustainabilityLive

Watershed

watershed.com

Cited in 33 of 35 buyer questions for ESG & Sustainability — surfaced by 3 of 3 AI engines.

ChatGPTGeminiClaude

Citation rate

94%

See the full Watershed profile→

Watershed surfaces in 94% of buyer queries about ESG and sustainability software, appearing across ChatGPT, Claude, Gemini, and Perplexity. Persefoni trails by six points at 89%, also visible on all four engines. The next tier — SpheraCloud (83%), Workiva (80%), Salesforce Net Zero (71%), Diligent (69%), and EcoVadis (69%) — all appear on every engine but capture progressively thinner slices of discovery share. Sweep shows up in 69% of queries but surfaces only on ChatGPT, Claude, and Gemini; One Click LCA appears on all four engines yet lands in just 11% of prompts.

Hover or click a logo to see brand details

X = coverage across discovery prompts · Y = engine diversity · Bubble size = total mentions

Tracked acrossChatGPT,Gemini,Claude

Get weekly AI visibility changes for ESG & Sustainability sent to your inbox.

Score shifts, new entrants, citation gaps — every Monday.

Signal by intent

By topic

Top 5 most-cited brands per intent cluster. Brands with zero citations in a topic are not shown.

Watershed

4/5

Sphera

3/5

Sweep

3/5

Persefoni

3/5

One Click LCA

2/5

Workiva

5/5

Watershed

5/5

Persefoni

5/5

Diligent

5/5

Salesforce

4/5

Persefoni

5/5

Workiva

5/5

Trust

4/5

Chain

4/5

Watershed

4/5

Workiva

4/4

Persefoni

4/4

Watershed

4/4

Sphera

4/4

Diligent

4/4

Watershed

4/4

Workiva

4/4

Salesforce

4/4

EcoVadis

4/4

Persefoni

4/4

Persefoni

4/4

Watershed

4/4

Salesforce

4/4

Sphera

4/4

Workiva

4/4

Salesforce

3/3

Watershed

3/3

Persefoni

3/3

Sweep

3/3

Workiva

3/3

Chain

3/3

Watershed

3/3

Persefoni

3/3

Sweep

3/3

Workiva

3/3

≥50% cited

25–49%

<25%

Topics are discovery-stage prompt clusters · esg-sustainability

Brands to know

In this category

Watershed

Carbon accounting platform for enterprise climate programs

Read brand profile →

Persefoni

Climate management software for Scope 1-3 emissions

Read brand profile →

SpheraCloud

EHS and sustainability data platform by Sphera

Read brand profile →

Citation sources

Where AI pulls citations from

543 citations captured across ESG & Sustainability prompt runs.

Vendor pages

154

Product, help, and marketing pages from tracked vendors

Independent sources

208

Reviews, encyclopedias, forums, press — not vendor-owned

Buyer questions

What AI cites for top ESG & Sustainability questions

Every query in this category lands at the top of the funnel — buyers ask AI for software recommendations by use case, vertical, or workflow. Sample phrasings: 'Software for analyzing waste management and reduction strategies', 'How do companies engage stakeholders in sustainability practices?', 'How do I benchmark our sustainability performance against peers?' None of the 35 prompts we audited dig into head-to-head comparisons, pricing, or trust signals; AI answers here are pure discovery-stage exploration.