Ahrefs vs OpenCorporates comparison

Ahrefs focuses on App & Website Traffic, Data APIs, and APIs & SDKs while OpenCorporates specializes in Data APIs, Regulatory Filings Monitoring, and Other. They overlap in 1 categories, so choose based on your preferred workflow and pricing.

Good news—both Ahrefs and OpenCorporates offer free plans. You can try each platform without commitment and only pay when you need premium features.

Yes, both platforms offer API access for developers and quants who want to build custom integrations or automate their workflows.

Choose Ahrefs if you need Ahrefs Web Analytics is a free, privacy-friendly website analytics product (no cookies / no personal data stored by default) with up to 1M events/month per site on the free tier; higher event volumes are paid per-project add-ons., and Website Traffic Checker provides estimated traffic and key metrics (including organic and paid search traffic) and shows traffic progression globally and locally (country breakdown). Bulk-check supports up to 200 websites at once.. Go with OpenCorporates if 230M+ company records spanning 145+ jurisdictions, aggregated from 140+ official registries with full provenance and source links., and Versioned REST API with JSON (default) or XML output; API keys required. Free tier provides up to 200 requests per month (50 per day). better fits how you invest.

Ahrefs offers real-time data feeds, which is essential for active traders. OpenCorporates uses delayed or end-of-day data, which works fine for longer-term investors who don't need up-to-the-second quotes.

Both platforms let you export data to spreadsheets (CSV). This is useful for custom analysis or record-keeping.