Bypass cloud scraper bans and harvest B2B contact lists instantly. Deep scrape company websites locally in your Chrome browser to extract verified emails, phone numbers, and socials.
Scraping Pipeline
Lead Engine Pro breaks B2B lead generation into a highly secure, stealth-optimized 4-stage pipeline. Click a stage to explore the real-time background threads.
Pick your lead source inside the extension popup: navigate to any Clutch.co directory, run a local search on Google Maps, or paste a custom list of website URLs or CSV/TXT files.
{
"source": "clutch.co/web-development",
"start_page": 1,
"ingested_leads": 42,
"filters": {
"has_website": true,
"min_rating": 4.5
}
}Adjust the sliding dials to choose how many background worker browser tabs open in parallel. Inspect the safety impact immediately.
Undetectable by Cloudflare & anti-bot screens. Mimics human crawling perfectly.
Capabilities
All processing happens locally on your computer inside sandboxed worker threads. Safe, private, and extremely high conversion.
Seamlessly scrape B2B agencies directly from Clutch.co listings or local business listings straight from Google Maps with one click.
Separates profile resolution from website deep crawling to keep extraction undetectable. Control parallel tabs for ultimate stealth.
Performs all HTML parsing and regular expression matching inside local sandboxed service workers. Secure, private, and blazing fast.
Export cleaned arrays containing company names, websites, phone numbers, email addresses, and social handles straight to Excel in one click.
Hardware-bound licensing engine protects subscriptions. Bind license keys safely to specific physical devices to prevent sharing piracy.
Have a pre-existing list of domains? Import your list via copy-paste or CSV, and let Lead Engine Pro crawl them for B2B contacts.
Operator Manual
Follow these four easy steps to start harvesting high-converting B2B prospect lists locally.
Download the unpacked extension ZIP package. Open Chrome and head to chrome://extensions, enable "Developer Mode" in the top-right, and drag-and-drop the package folder. Activate using your secure B2B license key.
Open the extension popup while browsing any Clutch.co category or running a search on Google Maps. Enter your starting page parameter and click "Start Collecting Leads" to ingest records instantly.
Set the background tab concurrency delay to 3 parallel crawler threads for ultimate stealth safety. Click "Resolve Missing Websites" and then "Start Deep Scraping" to extract emails, phones, and social links.
Once the background thread finishes crawling, inspect your live grid console for verified contacts. Click "Excel" or "CSV" to export a clean CRM-ready database directly to your local computer.
Get immediate access to the Lead Engine Pro Chrome Extension bundle. Use the license lookup system on our homepage to activate your plan.
Relnov is a premium, full-service white-label engineering partner. We build custom Web Applications, iOS/Android Mobile Apps, custom WordPress architectures, high-converting SEO strategies, custom Chrome Extensions, and advanced AI integrations. We quietly handle the entire development queue under your own brand with clean delivery, zero retainers, and full code ownership.
Questions
Everything you need to know about B2B extraction limits, stealth, and license locking.
Unlike server-side cloud bots that run on easily banned datacenter IPs, Lead Engine Pro operates locally inside your actual Chrome browser session. It utilizes your natural residential IP and mimics real user navigation times, which keeps it completely clear of anti-bot systems like Cloudflare.
We highly recommend setting "Parallel Sites to Scrape" to 3. This maintains a natural, human-like crawling cadence while still delivering high extraction speeds. Setting it higher than 8 is only advised when utilizing high-quality rotating residential proxies.
Upon your first activation, the license key is securely bound to your machine’s unique browser fingerprint. This ensures that the subscription key cannot be shared across multiple unregistered physical machines.
Yes. You can paste a clean list of URLs directly into the "Custom URLs" tab or upload a CSV file. The extension will automatically bypass the collection step and jump straight to deep email and social scraping.
Yes, it deep-scrapes target homepages and subpages to extract official LinkedIn, Facebook, Instagram, and Twitter/X handles, helping you cross-reference outreach.