For sales reps
Every conversation.
Proven human.
Generate a one-time code and attach it to any message, call, or meeting. The person on the other end instantly sees who you are, when you sent it, and that a real human is behind this — not AI, not a bot.
Someone sent you a code?
Enter it here to instantly see who they are and confirm they are a real human.
Hi Sarah,
Following up on Tuesday. Happy to send a short Loom on how we cut SDR ramp time by 6 weeks.
PS. I wrote this myself — not AI, not a template. Here's proof:
humansender.com/m/9k2p
— Alex
Alex Chen
Account Executive · Lumio
Alex personally wrote this to you at 14:32 today.
As seen on
Verify a code
Got a code in an email or call?
Someone sent you a 4-digit or 6-character Human Sender code. Enter it here and we instantly show you who they are, when they sent it, and that they are a verified real person — not AI, not a bot.
- ✓ 4-digit code = live call verification
- ✓ 6-character code = signed email or message
- ✓ Works from any device, no account needed
Enter the code you received
How it works
Prove you are real — whatever the channel
Sending a cold email or message
Sign it before you send
Generate a one-time code in your dashboard. Drop the plain link into your email as a PS, in your intro, or wherever it fits. Works for cold outreach, follow-ups, LinkedIn DMs — any written message.
Hi Sarah,
Following up on Tuesday. Happy to send a short Loom on how we cut SDR ramp time by 6 weeks.
PS. I wrote this myself — not AI, not a template. Here's proof:
humansender.com/m/9k2p
Alex Chen
Account Executive · Lumio
What the recipient sees
One click. Full picture.
Your prospect clicks the link — no app, no signup needed. They see your verified name, photo, the exact time you signed this specific message, and that it was written for them personally. Not a batch blast.
Alex Chen personally wrote and sent you this message.
Signed 20 May 2026 at 14:32 CET
How much can you trust this person?
Email confirmed
Account exists and email is real
Liveness check
Real human face confirmed via camera
ID verified
No government ID checked yet
Employer verified
No company affiliation confirmed
Someone just sent you a code?
Enter it here — or scroll up for more context.
Why it matters
€10
Cost to clone any voice
30 seconds of LinkedIn audio is enough to clone a voice in real time. Human Sender proves a live human is present — not a recording.
65%
Cold emails hit spam or get ignored
Inboxes now assume strangers are bots. A verified-human link in your signature is the signal that earns a reply.
$25M
Wired to a deepfaked CFO
Arup, 2024. A finance worker on a Teams call with a fake CFO. A one-sided challenge would have caught it in 10 seconds.
Start proving you are human today
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