Chrome extension · Free to start
Scan any business website. Every lead arrives with the pages it came from and a score you can check.
done running waiting Nothing leaves your machine.
The part other tools do not show you
Open “Why this lead?” on any result. The arithmetic below is the score — there is no second calculation to drift from it.
How to read it
Every lead starts at 18 — what a well-formed address at a real, non-disposable domain has already earned. Evidence adds from there. Weak evidence subtracts.
Amara Okonkwo
Founder & Creative Director
amara@northwind-studio.com
Verified
95 out of 100 — strong evidence
| Person detected | +5 |
|---|---|
| Role detected | +4 |
| Has a profile page on this site | +2 |
| Published in the page’s structured data | +12 |
| Domain matches the website | +12 |
| Person and email linked by the site | +24 |
| Address spells this person’s name | +3 |
| Also published on 2 other pages | +4 |
| Found on an about page | +6 |
| Domain accepts email | +5 |
Starting score 18, evidence +77 95 / 100
Four distinctions
Collapsing them is where the exaggeration gets in.
Found≠Lead
A scraped address is a string. A lead has a person, a role and evidence behind it — and only the second kind spends your allowance.
Confidence≠Value
One asks whether the record is correct, the other whether it is worth your time. A
well-evidenced info@ is high on one and low on the other.
Verified≠Deliverable
The domain has mail servers and accepts mail. Whether that one mailbox exists, no client-side tool can know — so none of them claims to.
Public≠Permission
Published is not consent. Under GDPR, PECR and CAN-SPAM that duty is the sender’s — yours. LeadProof sends nothing itself.
Captured from the built extension
The real extension running a real scan against a test site. The numbers are whatever it actually produced.
Privacy by structure, not by promise
It is the shape of the thing, not a policy we could quietly change. Each check below takes a minute and needs nothing from us.
No “read and change all your data on all websites”. A fresh install cannot reach any site until you name one.
Run a scan with DevTools open. Requests go to the site you asked for and nowhere else.
One origin at a time, when you press Scan. Nothing is bundled into an install-time yes.
There are exactly three hosts LeadProof can ever contact, and two of
them are off until you act. The website you asked it to scan, fetched with no cookies
and no referrer. api.freemius.com, once, when you enter a licence key
— carrying that key and a random install id, nothing else.
cloudflare-dns.com, if you turn on mail-server checks, carrying the
domain of an address and never the address itself. No page content, no name,
no company, no address, no counts and no browsing activity is transmitted anywhere,
ever. The privacy policy sets out every field.
Decisions, not gaps
A tool is judged on the worst thing it is willing to assert.
An address alone yields no name. john.smith@acme.com produces nothing —
on screen a guess looks exactly like a finding.
Verification is domain-level. No SMTP probing, no catch-all trickery, and the word “deliverable” appears nowhere.
An info@ inside Jane’s team card is the company’s address,
not Jane’s, and it is not filed as hers.
No percentage during a scan. It cannot know how many pages a site has until it reads them, and a fake bar teaches you its numbers are decorative.
Honoured by default, and it identifies itself as leadproof rather than
posing as an ordinary browser.
It finds contacts and evidences them. It does not send, sequence, or check do-not-contact lists — it has no honest way to.
Free vs Pro
The evidence drawer, confidence, lead scoring, filters and CSV export are all in the free version. Pro raises the ceilings.
A real tool, not a demonstration of one.
$0 forever
No card, no account, no trial clock
Pro for as long as you need it, and no longer.
$9.99 /month
Billed every month · cancel any time
Best value
The same Pro, with one renewal to think about.
$99.99 /year
16% less than twelve monthly payments
One payment. Nothing to renew, nothing to cancel.
$299.99 one-time
No renewal, no expiry date
One asymmetry worth naming: Free keeps seven days of history and then deletes — the scans and their leads, not a filter over data still on disk. Export before it goes.
Questions
Reading a company’s published contact page is not the hard part — what you do next is. An address being public is not consent to receive marketing, and under GDPR, PECR, CAN-SPAM, CASL and their equivalents the obligations fall on the sender. LeadProof gives you the contact and the evidence; it does not send anything, and it cannot tell you whether your particular outreach is lawful. That remains your call and your responsibility.
That the domain has mail servers and accepts mail — confirmed by a real MX lookup, not inferred from the address looking sensible. It does not mean the individual mailbox exists; only the receiving server knows that. The badge carries that sentence in the product, not just here. Addresses that pass every check we can run without a network are labelled “Likely” instead, which is a weaker and more accurate word.
No. There is no LeadProof server, so there is nowhere for it to go. Leads, evidence,
company profiles and history live in your browser’s own storage. Buying Pro
adds one request, to api.freemius.com, carrying your licence key and a
random install id — no domains, no addresses, no counts. Switching on
mail-server checks adds one more, carrying a domain and never an address.
To read the pages you asked it to read. Chrome asks for that one origin at the moment you press Scan, not at install — which is why adding LeadProof shows no permission warning. The extension cannot name your sites in advance, so the permission is requested per site, by you, each time.
We will not give you a number, because it depends entirely on what the site publishes. A studio with a team page listing eight people and their addresses gives you eight. A site with a contact form and nothing else gives you the company profile and perhaps one shared mailbox. LeadProof reports what it found; it does not pad the list to look productive.
No — not for the free version and not for Pro. Pro is unlocked with a licence key you paste in once. There is no sign-up, no password and nothing to recover.
Yes. A licence covers one installation at a time. Remove the licence in LeadProof’s settings — which hands the seat back before it forgets the key — then paste it in on the new machine. You can also release a seat from users.freemius.com. If every seat is in use, LeadProof says so in those words rather than telling you the key is invalid.
LeadProof returns to the free limits, which includes seven days of history — so scans older than that are deleted, along with their leads. Nothing is held hostage and nothing is hidden behind a paywall you can re-open; it is removed. Your CSV exports are files on your disk and are unaffected. If history matters to you, export before a licence lapses.
Availability
LeadProof 1.0 is built and packaged, and not yet listed. Rather than a button that goes nowhere, here is where it stands.
The extension is complete and tested. What remains is the store review and getting the payment account verified. Until both clear there is nothing honest to link to.
Write to us and we will tell you the day it lands. No list, no drip campaign.
In-app reporting would need a network request, so email is the whole support channel — read by the person who wrote the scoring.
