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Real-time monitoring

Real-Time Alerts for Paid Traffic on Broken Pages

Never lose another click. FF404 monitors your site and instantly alerts you when paid, email, or search traffic lands on a 404. Fix issues before they waste budget, cost conversions, or frustrate customers.

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Built for performance marketers

Protect every campaign with automated 404 monitoring and instant alerts.

Live alert 0:03 ago

Campaign: Spring Paid Search

Source: Google Ads

Landing URL: /collections/new-arrivals

Status: 404 detected

Next steps

Send Slack alert to #growth-team
Pause paid campaign to stop wasted spend
Auto-redirect visitors to working fallback page

Key metrics

Monitoring insights at a glance

Track how FF404 keeps every campaign on course. Real-time monitoring powers reliable experiences across paid, owned, and earned channels.

Active sites tracked

2,829

Coverage across partner domains

Missing pages detected

515,247

Issues surfaced over the last 3,321 days

Users alerted

984

Team members receiving real-time notifications

Alerts sent

88,806

Delivered across every tracked property

Paid campaigns

9,717 ~2%

Email campaigns

15,006 ~3%

Organic search

39,483 ~8%

AI assistants

4,920 ~1%

Social proof

Teams rely on FF404 to protect every paid click

Performance marketers, lifecycle leads, and growth teams use FF404 to spot broken journeys before they drain budgets. Here’s what a few of them say after switching on real-time monitoring.

“FF404 caught three broken promo pages before launch week even started. We saved thousands in ad spend that would have vanished overnight.”

Maya Chen

Growth Lead, Adverto Labs

“The Slack alerts fire instantly and our team can pause campaigns before budgets burn. FF404 paid for itself in the first week.”

James Ortiz

Performance Marketing Manager, RetailCo

“We ship dozens of landing pages a month. FF404 keeps every experience live by surfacing problems before customers notice.”

Sofia Patel

Lifecycle Marketing, Launchly