# How to add Sentry monitoring to a Webflow Cloud app

DevFeed: [How to add Sentry monitoring to a Webflow Cloud app](<https://devfeed.tech/articles/how-to-add-sentry-monitoring-to-a-webflow-cloud-app-9228.md>)

Original publisher: [Read original article](<https://webflowmarketingmain.com/blog/monitor-webflow-cloud-app-sentry>)

Author: Ismail Ajagbe

Published: 2026-09-12T00:00:00Z

Content type: tutorial

Language: en

Sources: [Webflow Blog](<https://devfeed.tech/sources/webflow-blog.md>)

Topics: [error tracking](<https://devfeed.tech/topics/error-tracking.md>), [Next.js](<https://devfeed.tech/topics/next-js.md>), [Workers](<https://devfeed.tech/topics/workers.md>), [session replay](<https://devfeed.tech/topics/session-replay.md>), [debugging](<https://devfeed.tech/topics/debugging.md>), [Traces](<https://devfeed.tech/topics/traces.md>), [configuration](<https://devfeed.tech/topics/configuration.md>), [Instrumentation](<https://devfeed.tech/topics/instrumentation.md>), [Command-line interface](<https://devfeed.tech/topics/cli.md>)

Tags: [cloudflare-workers](<https://devfeed.tech/tags/cloudflare-workers.md>), [debugging](<https://devfeed.tech/tags/debugging.md>), [error-tracking](<https://devfeed.tech/tags/error-tracking.md>), [guides](<https://devfeed.tech/tags/guides.md>), [how-to](<https://devfeed.tech/tags/how-to.md>), [instrumentation](<https://devfeed.tech/tags/instrumentation.md>), [monitoring](<https://devfeed.tech/tags/monitoring.md>), [next-js](<https://devfeed.tech/tags/next-js.md>), [session-replay](<https://devfeed.tech/tags/session-replay.md>), [traces](<https://devfeed.tech/tags/traces.md>)

## AI overview

This tutorial explains how to manually add Sentry monitoring to a Webflow Cloud app running Next.js. It covers SDK installation, initialization files, environment variables, a Cloudflare-specific tunnel fix, verification, alerts, and common silent failure modes. The setup enables error grouping, stack traces, performance traces, and session replay.

## Source excerpt

Learn how to add Sentry monitoring to a Webflow Cloud Next.js app. Get error grouping, stack traces, and session replay working.