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Built for Cold EmailersHOT

Done-For-You Cold Email Inboxes
For Founder-Led Sales

Peeker protects inbox health and keeps outreach running, so your emails land, your follow-ups go out, and your pipeline doesn't stall while you're building.

Trusted by 500+ Leading Cold Email Teams

Scale Your LeadsScale Your Leads
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Scale Your LeadsScale Your Leads
ClientPushClientPush
OO
BoardyBoardy
EverOutBoundEverOutBound
Scale Your LeadsScale Your Leads
ClientPushClientPush
OO
BoardyBoardy
EverOutBoundEverOutBound
Scale Your LeadsScale Your Leads
ClientPushClientPush
OO
BoardyBoardy
EverOutBoundEverOutBound
001Peeker For Founders
Founder's Outreach

Founders Spend Time Crafting Outreach Emails
For Sales

You put real thought into every message: targeting, personalization, and timing. Deliverability shouldn't be the reason your outreach doesn't drive results.

Founder outreach inbox preview
002Peeker x Founders
Peeker's Value To Founders

Ways Peeker Helps
Founders Sell More

01

Higher Deliverability

Peeker keeps your inboxes healthy and trusted, so your emails land where they should, reducing spam placement and protecting reply rates across every campaign.

02

10x Your Sending Capacity

Scale outreach without fear. Peeker monitors inbox health and swaps burnt inboxes automatically, letting you safely expand volume while keeping performance stable.

03

Less Maintenance of Infrastructure

No more inbox babysitting, manual swaps, or deliverability firefighting. Peeker handles monitoring and protection in the background so you can focus on pipeline and closing.

003Why Peeker
Peeker's Standout Value

Get Ready-To-Send
Cold-Email Inboxes Now

Stock up on inboxes the smart way: clear costs, fast provisioning, and scaling without babysitting.

Transparent Pricing

Straightforward rates that stay consistent as you add more inboxes, no surprise fees or confusing "add-ons".

Faster Setup

Skip the slow, manual work. Get inboxes provisioned and organized faster so campaigns can go live without delays.

Better Quality

Inboxes come properly configured for cold emailing so you see fewer issues, smoother ramp-ups, and more stable sending.

Connect Your Email Sequencers to Peeker

Peeker allows you to connect your various sequencers like Instantly, Email Bison, PlusVibe or Smartlead via API keys.

Connect sequencers to Peeker dashboard

Built For Founders Who Can't
Afford To Land In Spam

When an inbox gets burned, Peeker automatically swaps it for a fresh and healthy one. No manual intervention, no downtime, no paused campaigns.

Automatic inbox swap workflow

Trusted by founders who consistently land in the primary inbox and drive higher converting campaigns

4.9%+

Average Reply Rate

200,000+

Inboxes monitored in real time

1,000+

Burned domains replaced

004Testimonials
Hear From Top Leading Giants

Why Founders Love
Self-Healing Inboxes

Peeker gives founders what others don't: fast setup, real tracking, and inboxes that actually land in primary.

005FAQs
Find Answers

Frequently Asked Questions

Everything you need to know before getting started with Peeker.

Founders and lean teams doing mass cold email outbound or pipeline-building who need reliable sending without spending hours managing inbox health.
It automates the busywork: monitoring deliverability, handling disconnects, swapping risky inboxes, and shows clear analytics, so you’re doing what matters and not firefighting.
No, your campaigns and sequences stay the same. Peeker sits underneath to keep inboxes healthy and maintain stable sending while your campaigns run.
Only if the replacement inbox is new or hasn’t been properly warmed. If it’s already warmed, it can take over immediately
Usually in minutes: order/connect inboxes and start sending. Peeker begins monitoring and protecting your campaigns right away.