Moz API (Link Explorer)
The Moz API provides programmatic access to Moz's Link Explorer data including Domain Authority, Page Authority, spam scores, and backlink metrics for any URL.
Score Breakdown
⚙ Agent Friendliness
🔒 Security
TLS enforced. API keys are account-scoped with no per-key permissions or IP restriction. No OAuth or fine-grained access control. Read-only API reduces risk of misuse.
⚡ Reliability
Best When
An agent needs authoritative domain or page authority scores as a single-source quality signal for link evaluation or content filtering.
Avoid When
You need SEO metrics updated more frequently than monthly or require keyword, SERP, or rank-based data rather than link graph metrics.
Use Cases
- • Scoring a list of domains by Domain Authority to prioritize outreach or partnership targets
- • Auditing backlink profiles of competitor domains to identify link-building opportunities
- • Filtering a dataset of URLs by Page Authority or spam score to remove low-quality links
- • Monitoring Domain Authority changes for a set of tracked domains on a scheduled basis
- • Enriching lead or publisher records with DA/PA metrics before CRM ingestion
Not For
- • Real-time SEO decisions requiring fresh data updated more frequently than Moz's monthly crawl cycle
- • Keyword research or SERP rank tracking (use dedicated rank tracking APIs for those use cases)
- • High-volume bulk lookups beyond monthly quota without purchasing additional rows
Interface
Authentication
API key passed as a Bearer token in the Authorization header. Keys are account-scoped. Rate limits and quotas are tied to the API key's subscription tier. Key management is done via the Moz account dashboard.
Pricing
Rows are consumed per URL queried; batch requests consume multiple rows. Monthly quota resets on billing anniversary. Overages are blocked, not billed.
Agent Metadata
Known Gotchas
- ⚠ Moz DA/PA data is updated on a monthly crawl cycle; agents should cache results and avoid re-querying within the same month to conserve quota
- ⚠ Batch endpoint returns partial results if some URLs fail validation; agents must check per-URL status in the response rather than assuming all results are valid
- ⚠ Quota exhaustion mid-batch is not atomic; partial quota consumption occurs even if the full batch cannot be served
- ⚠ Domain Authority scores can shift significantly after Moz's monthly index update, which can cause unexpected threshold-based logic changes in agents
- ⚠ URL normalization matters: querying 'example.com' and 'www.example.com' may return different metrics and quota is consumed for each variant
Alternatives
Full Evaluation Report
Comprehensive deep-dive: security analysis, reliability audit, agent experience review, cost modeling, competitive positioning, and improvement roadmap for Moz API (Link Explorer).
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Package Brief
Quick verdict, integration guide, cost projections, gotchas with workarounds, and alternatives comparison.
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Score Monitoring
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Scores are editorial opinions as of 2026-03-07.