How to find B2B leads from your website URL
Paste your website and get real people who would buy from you, each with where its address came from. How to build a first B2B lead list, what it costs, and how to check it.
Most lead lists start the same way: you describe your ideal customer, someone buys a database, and half of it bounces. If you sell to businesses and you have a website, there is a faster way to start. Your site already says what you sell. A good lead tool can read it, work out who buys from you, and go find those people.
That is what Radar does. This guide shows how to go from a URL to a list you can email, what each step costs, and how to keep the list clean.
What you need
- Your website, or the site of the product you want leads for.
- A free StormGTM account. New accounts get up to 100 free credits on signup, and no card is needed. Signup credits are not granted to disposable email domains, to an address that already received them under another spelling, or once five accounts from one IP address have received them that day.
You do not need to write a list of job titles, buy a database or connect a mailbox.
Step 1: Paste your website
Sign in, open Radar, and paste your site, for example acme.io. If you already know who you want, say it in a sentence too: "owners of physiotherapy clinics in Vancouver" or "heads of engineering at small software companies". The more you say, the sharper the list.
Step 2: Radar works out who buys from you
Radar reads your site first: what you sell, who it is for, and what problem it solves. From that it decides what kind of company would use your product in its own work and who at that company would decide to buy, such as the founder, the owner or the head of the team that would use it.
If your site says very little, Radar still makes its best guess instead of stopping to ask, and tells you the guess in its answer, along with the other likely reading. If the guess is off, reply in one line ("I meant publishers, not studios") and it searches again.
Step 3: It finds named people, not just inboxes
Radar looks for companies that fit and then for the right person at each one, on team pages, about pages, member directories, speaker lists and other public pages. It aims for one decision maker per company.
A few rules keep the list honest:
- Every address was seen on a page or in a search result, or confirmed by the company's mail server. Radar does not keep a guess like first.last@company unless the company's mail server accepts it. Each lead records where its address came from, so you can check it yourself.
- Named people come first. Shared inboxes such as hello@ or info@ are a fallback, saved only for small companies that fit well, and marked as shared.
- No recruiters, agencies or your own competitors, unless you ask for them.
Step 4: Review the list and export it
Each lead shows the person's name, title, company, where their address came from and a short note on why they fit. Delete the ones you do not want, then export the list as a CSV file. Exporting is free.
You can also add leads you already have, from a spreadsheet or a CRM export, and keep everything in one list. Adding your own leads is free too.
Step 5: Check the addresses before you send
A lead list is only as good as the addresses on it. Before you email anyone, run the list through Barometer. It tells you which addresses are safe to send to, which are risky and which will bounce, with a reason for each, and it never emails the people you check. We explain how that works in How to verify an email address without sending an email.
Send only to the leads marked deliverable. Your bounce rate stays low, which keeps your domain's reputation, and with it your future emails, out of the spam folder.
What it costs
| Cost | |
|---|---|
| A new lead Radar finds | 1 credit |
| A lead you already have | Free, never charged twice |
| A search that finds nobody | Free |
| Adding your own leads | Free |
| Exporting to CSV | Free |
| A fast address check | 1 credit |
Credits come in one-time packs and never expire. The pricing page has the current packs; the signup credits, up to 100, are enough for a first list and a check of every address on it.
Tips for a better list
- Name a place when it matters. "Dental clinics in Austin" beats "dental clinics".
- Say who you do not want. "Skip enterprises" or "no agencies" saves credits.
- Ask for a number. "Find 20" gets you 20 good leads and then stops.
- Run it again with a twist. "Same, but in Denver" or "now the head of operations instead" reuses what Radar learned about your product.
Hand it to an agent instead
If an AI agent already does your outreach, it can run Radar for you. The StormGTM MCP server gives Claude, Cursor and other agents tools to find leads, take only the new ones and check them before sending. The setup takes a minute: see Give your AI agent a lead list it can trust.
Try it
Sign in, paste your website, and you will have your first leads in a few minutes, each one with its source.