Meta Ad Library vs Semrush Advertising Toolkit in 2026: first-party Meta verification vs broad search research

Meta Ad Library is Meta’s public advertising-transparency surface. A researcher selects a location and ad category, then searches ads currently running across Meta technologies by keyword or advertiser. That makes it the source to check first when a paid-social strategist wants to validate a visible ad without access to the advertiser’s account. The result can show the public creative record Meta makes available, but it cannot reveal commercial conversions, revenue, bids, targeting strategy, full campaign structure, or the advertiser’s private business results.

The useful history is specific rather than universal. Meta says it retains social-issue, election, and political ads for seven years; ads delivered anywhere in the European Union for one year; and UK ads for one year when they ran after July 1, 2025. It also provides an Ad Library Report for exploring and downloading political and issue-ad data, plus an API for custom searches in its published political, issue, UK, and EU scopes. Meta lists fields such as Library ID, creative, Page details, delivery dates, and placements, with further transparency data in defined regulated contexts.

This is public infrastructure, not a campaign-management or research-operations system. There is no published subscription fee, but there are also no stated saved boards, annotations, alerts, team workflow, or general archive of all stopped commercial ads. A branded-content search can identify paid partnerships on Facebook and Instagram, which is useful for disclosure research but distinct from ad performance. Use Meta Ad Library as evidence, then organise selected examples elsewhere if the team needs a repeatable workflow.

Semrush is a broad search and digital-marketing platform, not a social-ad transparency tool. It is designed for keyword research, backlink analysis, technical site audits, competitor benchmarking, and content optimisation. Its paid-search intelligence belongs beside those SEO workflows: a team can investigate search demand and competitor behaviour alongside the site work that determines whether traffic has somewhere useful to land. That makes Semrush relevant before building a search campaign, not when verifying a specific live Meta creative.

The platform has expanded into AI visibility tracking across ChatGPT, Gemini, Perplexity, Google AI Overviews, and Google AI Mode. Users define prompts, then follow brand mention, cited-competitor, and share-of-voice trends. Semrush also offers white-label reporting, branded PDF exports, client portals, a mature API, and integrations including Google Search Console and Looker Studio. These capabilities make it useful to a search agency delivering a broader programme, but no profile evidence supports treating it as an archive of Meta ad creative or a source of Meta account-level results.

Semrush pricing is modular. The SEO Toolkit is €134 per month or €112.52 billed annually. AI Visibility Toolkit is $99 per month per domain and includes 25 custom prompts, with 50 additional prompts priced at $60 per month. Semrush One bundles start at €190 per month or €158.40 billed annually. The free tier permits 10 searches per day and 10 tracked keywords, enough for initial evaluation rather than day-to-day agency research. It is worth paying for when the search workflows will be used repeatedly.