Surfer SEO

AI-powered SEO content optimisation platform for data-driven content teams

Ahrefs

AI-enhanced SEO toolset with industry-leading backlink index and keyword research capabilities

Surfer SEO

Moderate

14/25

Ahrefs

Moderate

14/25

Score Breakdown

DimensionSurfer SEOAhrefs

Data Residency

Where is your data stored and processed?

Surfer SEO: Hosted on GCP EU region; processes public web content and user-authored text; no PII in core workflow

Ahrefs: Singapore-incorporated and bootstrapped; data processed across global infrastructure; no formal per-customer data residency selection but alternative jurisdiction to US CLOUD Act-covered vendors

3/5

Hosted on GCP EU region; processes public web content and user-authored text; no PII in core workflow

3/5

Singapore-incorporated and bootstrapped; data processed across global infrastructure; no formal per-customer data residency selection but alternative jurisdiction to US CLOUD Act-covered vendors

Legal Jurisdiction

Which laws govern the company and your data?

Surfer SEO: Polish company incorporated in EU; subject to GDPR as data controller; no CLOUD Act exposure

Ahrefs: Singapore incorporation provides a favourable alternative to US-based alternatives; Singapore has PDPA data protection legislation and is not subject to US CLOUD Act; GDPR DPA available

4/5

Polish company incorporated in EU; subject to GDPR as data controller; no CLOUD Act exposure

3/5

Singapore incorporation provides a favourable alternative to US-based alternatives; Singapore has PDPA data protection legislation and is not subject to US CLOUD Act; GDPR DPA available

Data Retention & Training

Is your data used for model training?

Surfer SEO: User content processed for scoring; not retained for model training; account data managed under GDPR

Ahrefs: Primarily processes public web index data; customer account and project data retained per privacy policy; no known use of customer data for model training

4/5

User content processed for scoring; not retained for model training; account data managed under GDPR

3/5

Primarily processes public web index data; customer account and project data retained per privacy policy; no known use of customer data for model training

Certifications

ISO 27001, SOC 2, Cyber Essentials, etc.

Surfer SEO: No publicly disclosed security certifications; GDPR-compliant privacy policy in place

Ahrefs: No publicly confirmed SOC 2 or ISO 27001 certifications; GDPR DPA available; cookie-free Web Analytics reduces personal data exposure

1/5

No publicly disclosed security certifications; GDPR-compliant privacy policy in place

2/5

No publicly confirmed SOC 2 or ISO 27001 certifications; GDPR DPA available; cookie-free Web Analytics reduces personal data exposure

Regulatory Fit

Suitability for regulated industries and professional services

Surfer SEO: Suitable for standard content and marketing teams; not designed for regulated industry compliance requirements

Ahrefs: Bootstrap model and Singapore jurisdiction are notable differentiators; absence of formal security certifications limits suitability for highly regulated sectors requiring SOC 2 evidence

2/5

Suitable for standard content and marketing teams; not designed for regulated industry compliance requirements

3/5

Bootstrap model and Singapore jurisdiction are notable differentiators; absence of formal security certifications limits suitability for highly regulated sectors requiring SOC 2 evidence

Total Score

14/25

Best For

Surfer SEO

Best for enterprises requiring SSO integration.

Ahrefs

Best for teams prioritising European legal jurisdiction; privacy-conscious teams who need strong data retention controls.

Detailed Comparison

Ahrefs vs Surfer SEO: Trust & Compliance Comparison

Ahrefs (Ahrefs, SG) scores 14/25 overall with a Bronze (Moderate) trust badge. AI-enhanced SEO toolset with industry-leading backlink index and keyword research capabilities. Surfer SEO (Surfer SEO, PL) scores 14/25 with a Bronze (Moderate) trust badge. AI-powered SEO content optimisation platform for data-driven content teams.

Dimension-by-Dimension Breakdown

#### Data Residency

Both score equally at 3/5.

●Ahrefs (3/5): Singapore-incorporated and bootstrapped; data processed across global infrastructure; no formal per-customer data residency selection but alternative jurisdiction to US CLOUD Act-covered vendors

●Surfer SEO (3/5): Hosted on GCP EU region; processes public web content and user-authored text; no PII in core workflow

#### Legal Jurisdiction

Surfer SEO leads with 4/5 vs 3/5.

●Ahrefs (3/5): Singapore incorporation provides a favourable alternative to US-based alternatives; Singapore has PDPA data protection legislation and is not subject to US CLOUD Act; GDPR DPA available

●Surfer SEO (4/5): Polish company incorporated in EU; subject to GDPR as data controller; no CLOUD Act exposure

#### Data Retention & Training

Surfer SEO leads with 4/5 vs 3/5.

●Ahrefs (3/5): Primarily processes public web index data; customer account and project data retained per privacy policy; no known use of customer data for model training

●Surfer SEO (4/5): User content processed for scoring; not retained for model training; account data managed under GDPR

#### Certifications

Ahrefs leads with 2/5 vs 1/5.

●Ahrefs (2/5): No publicly confirmed SOC 2 or ISO 27001 certifications; GDPR DPA available; cookie-free Web Analytics reduces personal data exposure

●Surfer SEO (1/5): No publicly disclosed security certifications; GDPR-compliant privacy policy in place

#### Regulatory Fit

Ahrefs leads with 3/5 vs 2/5.

●Ahrefs (3/5): Bootstrap model and Singapore jurisdiction are notable differentiators; absence of formal security certifications limits suitability for highly regulated sectors requiring SOC 2 evidence

●Surfer SEO (2/5): Suitable for standard content and marketing teams; not designed for regulated industry compliance requirements

Overall Verdict

Ahrefs and Surfer SEO are closely matched on trust and compliance, with scores of 14/25 and 14/25 respectively. The right choice depends on your specific regulatory requirements and existing technology stack.

Frequently Asked Questions

Which is better for EU compliance, Surfer SEO or Ahrefs?

Surfer SEO has a TrustKit score of 14/25 while Ahrefs scores 14/25. Both tools are currently rated equally across data residency, legal jurisdiction, data retention, certifications, and regulatory fit.

How do Surfer SEO and Ahrefs compare on data residency?

Surfer SEO scores 3/5 for data residency (Hosted on GCP EU region; processes public web content and user-authored text; no PII in core workflow), while Ahrefs scores 3/5 (Singapore-incorporated and bootstrapped; data processed across global infrastructure; no formal per-customer data residency selection but alternative jurisdiction to US CLOUD Act-covered vendors).

Are Surfer SEO and Ahrefs GDPR compliant?

Both tools are assessed across five compliance dimensions. Surfer SEO has a regulatory fit score of 2/5 and Ahrefs scores 3/5. Check the full comparison above for a detailed breakdown.

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