GDPR checklist for seo tools.
SEO tools mostly analyse public web data, so the personal data involved is usually limited to your team’s accounts, unless you use outreach or contact-finding features. Compare 4 common tools and see what to check for each.
Compared at a glance
| Tool | Usual role | Data location | Agreement |
|---|---|---|---|
 Semrush | Usually a processor | Set per account or project | Published by the vendor |
 Ahrefs | Usually a processor | Set per account or project | Published by the vendor |
 SE Ranking | Usually a processor | Set per account or project | Published by the vendor |
 Similarweb | Depends on the activity | Set per account or project | Published by the vendor |
What to check for seo tools
- List which features you use: keyword research handles little personal data, outreach handles a lot.
- If you collect contacts for outreach, apply your prospecting rules and offer an easy opt-out.
- Check who in your team has access.
- Record the region and any transfer outside the EEA.
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Questions, answered.
What should I check before using a seo tool under the GDPR?
List which features you use: keyword research handles little personal data, outreach handles a lot. If you collect contacts for outreach, apply your prospecting rules and offer an easy opt-out. Check who in your team has access. Record the region and any transfer outside the EEA.
Do I need a data processing agreement with a seo provider?
If the provider handles personal data on your behalf, yes: Article 28 of the GDPR requires a written contract. Some providers publish the text, others give it to you inside your account. Providers that decide their own purposes may act as independent controllers instead, so check the role.
Which seo tools does Privacyboard cover?
Semrush, Ahrefs, SE Ranking, Similarweb. Each has a page with its agreement, usual role and data location, checked on 1 November 2026.
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Privacyboard is not affiliated with these vendors. Checked on 1 November 2026. This is guidance, not legal advice.