Google Ads Transparency Center vs Otterly.AI in 2026: Public Google ad records vs AI-search visibility monitoring
Google Ads Transparency Center is a free lookup for Google advertiser and creative records. Otterly.AI is a paid GEO monitor that tracks brand appearance, answer position, citations, and recommendations across AI search engines, with API and MCP access from Standard.
Google Ads Transparency Center
Otterly.AI- Google Ads Transparency Center is a free first-party lookup for supported public ads shown through Google across Search, Display, YouTube, and DV360.
- Otterly.AI Lite starts at $29 per month with 15 prompts across four base engines, answer ranking, citation link analysis, and paid engine add-ons.
- Google platform filters only include ads shown on or after September 4, 2023, so filtered results do not represent the full prior record.
- Otterly tracks ChatGPT, Google AI Overviews, Google AI Mode, Perplexity, Microsoft Copilot, Claude, and Gemini, with Gemini, AI Mode, and Claude offered as paid add-ons to the four base engines.
- Otterly API access and MCP integration begin on Standard at $189 per month, not Lite.
- Google’s Political Ads Transparency Report retains election creative for seven years after its last impression.
- Neither service exposes private competitor campaign budgets, conversion results, or return on ad spend.
Google Ads Transparency Center and Otterly.AI belong in the same research stack only when a team understands that they answer unrelated questions. Transparency Center is Google’s free public lookup surface for advertiser and website searches, supported ads shown through Search, Display, YouTube, and DV360, plus special political and regional transparency information. Otterly.AI monitors how a brand appears in AI-generated answers across its tracked engines, runs a GEO audit, analyses cited domains, and records answer ranking. Use Google when the evidence you need is a public Google ad record or advertiser identity. Use Otterly when the question is whether AI answers mention, rank, or cite a brand and what content gaps may be involved. Neither is a private Google Ads account, so neither can give you a competitor’s bids, spend, conversion results, or profitability.
The tools at a glance
Google Ads Transparency Center
Google’s free first-party lookup for public advertiser records and supported ads shown through Google
Google Ads Transparency Center is a public research surface, not a campaign-management account. Search by advertiser name or website to inspect available advertiser and ad records. Website search is particularly useful when the brand name and advertiser account do not match, because Google says a domain can show several advertiser accounts and the results can then be narrowed to one advertiser.
Google describes covered ads as having been shown at least once across Search, Display, YouTube, and DV360 in supported formats. That makes the Center a strong first-party check before relying on a third-party creative library, but it does not expose budgets, bids, conversion performance, profitability, or complete internal targeting. Selecting the platform filter excludes ads shown before September 4, 2023, so a filtered result should never be read as a complete historical archive. It also has no published saved-board or alerting workflow.
| Feature | Public lookup Free |
|---|---|
| Advertiser or website search | Yes |
| Google ad record coverage | Search, Display, YouTube, and DV360 supported formats |
| Political archive | Yes, seven years after last impression |
| AI answer monitoring | No |
| Saved boards and alerts | No published workflow |
Otterly.AI
AI-search monitoring with GEO audits, citation analysis, answer ranking, and API or MCP access from Standard
Otterly.AI is a Generative Engine Optimization monitoring product. It tracks brand mentions across ChatGPT, Google AI Overviews, Google AI Mode, Perplexity, Microsoft Copilot, Claude, and Gemini, while separating answer ranking from simple inclusion. That distinction matters for a content or SEO team: appearing near the end of an answer and appearing prominently are different outcomes, even when both count as a mention.
The product goes beyond a dashboard by offering a GEO audit and domain-level citation analysis. A team can see which domains AI engines cite, identify competitors drawing citations, and use the audit’s recommendations to investigate content, structure, and authority gaps. This is evidence about AI-generated answers, not advertising delivery. It cannot tell you whether a competitor bought a Google Search ad or what its Google Ads account spent. Otterly also does not publish native white-label delivery for agencies.
| Feature | Lite $29/mo | Standard $189/mo | Premium $489/mo | Enterprise From €1,000/mo |
|---|---|---|---|---|
| AI models tracked | 4 base, more as paid add-ons | 4 base, more as paid add-ons | 4 base, more as paid add-ons | Contact |
| Prompts | 15 | Contact | Contact | Contact |
| GEO audit and citation analysis | ✓ | ✓ | ✓ | ✓ |
| API access and MCP | ✗ | ✓ | ✓ | ✓ |
| White label | ✗ | ✗ | ✗ | Contact |
Head-to-head feature comparison
| Feature | Google Ads Transparency Center | Otterly.AI |
|---|---|---|
| Primary evidence | Public Google advertiser and ad records | Brand appearance in tracked AI answers |
| Starting price | Free | $29/mo Lite |
| Google advertiser or website lookup | Yes | No |
| Supported Google ad records | Search, Display, YouTube, DV360 supported formats | No |
| AI-engine monitoring | No | ChatGPT, Google AI Overviews, AI Mode, Perplexity, Copilot, Claude, Gemini |
| Answer ranking | No | Yes |
| Citation-domain analysis | No | Yes |
| GEO audit | No | Yes |
| API and MCP | No published access | Standard $189/mo and above |
| Competitor spend or conversion data | No | No |
Which should you choose?
Google Ads Transparency CenterGoogle Ads Transparency CenterOtterly.AIOtterly.AITransparency Center is authoritative for the narrow question Google makes public: which advertiser and supported ad records are available through its surface. Otterly is operationally useful for the different question of how a brand appears in AI answers and which cited domains may be influencing those outcomes. The free Google lookup is not a substitute for AI monitoring, and an Otterly rank or citation report is not evidence about paid Google media. A mature search team may use both, but the outputs should remain separate.
Bottom line
Choose Google Ads Transparency Center when you need a free source-of-record check for available Google advertising, advertiser identity, regional disclosures, or political-ad history. Choose Otterly.AI when the work is AI-search monitoring, citation analysis, answer ranking, and a GEO audit, beginning at $29 per month. Pay for Otterly Standard only when API or MCP access is an actual workflow requirement. Neither tool can validate a rival’s Google Ads economics, so do not present either output as spend or ROAS intelligence.
Frequently asked questions
Can Otterly.AI show the Google Ads a competitor is running in 2026?
Otterly.AI cannot show a competitor’s Google Ads because its documented job is monitoring brand appearance, answer ranking, citations, and GEO opportunities in AI-generated answers. Google Ads Transparency Center is the relevant free first-party lookup for publicly available Google ad records.
Does Google Ads Transparency Center track Google AI Overviews like Otterly.AI?
Google Ads Transparency Center does not provide an AI Overview visibility-monitoring workflow. Otterly.AI tracks Google AI Overviews as one of its documented AI surfaces, while also treating Google AI Mode as a separate paid add-on engine. The two outputs measure different things: public advertising records versus a brand’s appearance in generated answers.
Which Otterly.AI plan includes API and MCP integration for an agency workflow?
Otterly.AI Standard is the first listed plan with API access and MCP integration, at $189 per month. Lite costs $29 per month and includes monitoring, answer ranking, and citation analysis but not programmatic access or MCP. Otterly does not publish native white-label delivery, so agencies still need their own client-reporting process.
Can an empty Google Ads Transparency Center result prove an advertiser never ran ads?
An empty Transparency Center result cannot prove an advertiser never ran ads because coverage is limited to publicly available supported records shown through Google. In particular, Google says the platform filter excludes ads shown before September 4, 2023.
Can either Google Ads Transparency Center or Otterly.AI show competitor ROAS?
Neither Google Ads Transparency Center nor Otterly.AI can show verified competitor ROAS. Transparency Center publishes public advertising records, while Otterly measures AI-answer visibility and citations rather than private Google Ads account results.
Reviewed by Filipe Lins DuarteCo-Founder & CEOVast experience talking to customers and users to understand what good software looks like. Background spans commercial and product roles.
Checked by John RiceCo-Founder & CTO15+ years building tech products and web applications. Conducted hundreds of user interviews to know what a good product looks like.
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