Firecrawl email verification with BillionVerify
Firecrawl is a developer-focused web scraping and crawling API that extracts structured data from websites at scale. When your crawls surface email addresses from public pages, BillionVerify lets you validate them immediately so only reachable, non-disposable contacts flow into your outreach tools or databases.
Why verify before the send
Web-scraped email addresses vary wildly in quality — many are outdated, role-based, or belong to domains with no working mail server. Sending to unvalidated scraped lists destroys sender reputation fast. Running every harvested address through BillionVerify filters out the junk and lets you focus outreach on genuinely deliverable contacts.
Ready-to-use n8n workflow
Import this workflow into n8n — it verifies every address with BillionVerify before Firecrawl sends, so only deliverable contacts are emailed. Install the BillionVerify community node first, then add your API key. Adapted from this n8n template
Workflow templates with Firecrawl
Ready-to-use workflows that verify emails before Firecrawl sends.
How it works
- 1
Connect Firecrawl and BillionVerify in an n8n workflow or call both REST APIs sequentially in your pipeline script.
- 2
After Firecrawl returns scraped data, extract email addresses from the structured output.
- 3
Send each address to BillionVerify for syntax, MX, deliverability, role-address, and disposable-domain checks.
- 4
Tag each result with its verification status and filter out invalid or high-risk addresses before downstream use.
- 5
Import only the clean, verified contacts into your CRM, outreach tool, or database.
When to use this
Filter scraped lead emails before CRM import
After Firecrawl extracts contact emails from target websites, pipe them through BillionVerify in an n8n workflow. Only import leads with valid, non-disposable addresses into your CRM, cutting bounce risk from the start.
Score and prioritize outreach lists
Use BillionVerify's verification results to score scraped contacts by deliverability confidence. Send high-priority sequences only to verified addresses and hold risky ones for a secondary review pass.
FAQ
Can I verify emails in bulk after a large Firecrawl job?
Yes. BillionVerify's bulk API accepts large lists and processes them asynchronously, making it practical to validate thousands of scraped addresses from a single crawl without rate-limiting concerns.
What percentage of scraped emails are typically invalid?
Rates vary by source, but publicly scraped lists often have 20–40% invalid or undeliverable addresses. Verifying before sending protects your domain reputation and improves deliverability metrics significantly.
Does BillionVerify flag role-based addresses like contact@ or info@?
Yes. Role-based addresses are commonly scraped from websites but respond poorly to cold outreach and can trigger spam complaints. BillionVerify identifies them so you can exclude or deprioritize them.
Verify emails in Firecrawl
Create a free account, grab your API key, and stop bounces before they happen.
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