# AppSignal

> Application Performance Monitoring for Ruby on Rails, Elixir, Node.js & Python. Get better insight into your application's performance with our beautiful dashboards and comprehensive monitoring tools.

## Content for LLMs

- [Detailed content (Markdown)](https://www.appsignal.com/llms-full.txt)
- [Homepage (Markdown)](https://www.appsignal.com/index.md)
- [AI info page](https://www.appsignal.com/ai-info-page) ([Markdown](https://www.appsignal.com/ai-info-page.md))

## Features

- [Error Tracking](https://www.appsignal.com/tour/errors/)
- [Performance Monitoring](https://www.appsignal.com/tour/performance)
- [Host Monitoring](https://www.appsignal.com/tour/hosts)
- [Anomaly Detection](https://www.appsignal.com/tour/anomaly-detection)
- [Uptime Monitoring](https://www.appsignal.com/tour/uptime-monitoring)
- [Metric Dashboards](https://www.appsignal.com/tour/metrics)
- [Workflow](https://www.appsignal.com/intelligence/workflow)
- [Log Management](https://www.appsignal.com/tour/log-management)
- [Dashboards](https://www.appsignal.com/intelligence/dashboards)
- [Process Monitoring](https://www.appsignal.com/tour/process-monitoring)
- [Time Detective](https://www.appsignal.com/intelligence/time-detective)
- [MCP Server](https://www.appsignal.com/intelligence/mcp-server)

## Resources

- [Plans & pricing](https://www.appsignal.com/plans)
- [Documentation](https://docs.appsignal.com/)
- [Blog](https://blog.appsignal.com/)
- [Customer Stories](https://www.appsignal.com/customers)
- [Changelog](https://www.appsignal.com/changelog)
- [Learning Center](https://www.appsignal.com/learning-center)
- [Why AppSignal](https://www.appsignal.com/why)

## Compare

- [vs Better Stack](https://www.appsignal.com/alternative/betterstack-alternative)
- [vs Datadog](https://www.appsignal.com/alternative/datadog-alternative)
- [vs Honeybadger](https://www.appsignal.com/alternative/honeybadger-alternative)
- [vs New Relic](https://www.appsignal.com/alternative/new-relic-alternative)
- [vs Scout APM](https://www.appsignal.com/alternative/scout-apm-alternative)
- [vs Sentry](https://www.appsignal.com/alternative/sentry-alternative)
- [vs SolarWinds](https://www.appsignal.com/alternative/solarwinds-alternative)

## Support

- [Contact us](https://www.appsignal.com/contact)
- [Live chat](mailto:support@appsignal.com)
- [Status](https://status.appsignal.com/)
- [Security](https://www.appsignal.com/security)
- [Enterprise](https://www.appsignal.com/enterprise)
- [Data Residency](https://www.appsignal.com/us-hosting)
- [Startups](https://www.appsignal.com/startups)
- [Long-Term Log Storage](https://www.appsignal.com/add-ons/long-term-log-storage)
- [HIPAA Compliance](https://www.appsignal.com/add-ons/hipaa-baa)

## About us

- [About](https://www.appsignal.com/about)
- [Jobs](https://www.appsignal.com/jobs)
- [Write for Our Blog](https://blog.appsignal.com/write-for-us)
- [Diversity](https://www.appsignal.com/diversity)
- [Open Source](https://www.appsignal.com/open-source)
- [X](https://x.com/appsignal)
- [Discord](https://discord.gg/sBWWGwYzfC)

## Languages

### Ruby
- [Ruby](https://www.appsignal.com/ruby)
- [Active Record](https://www.appsignal.com/ruby/active-record-monitoring)
- [Capistrano](https://www.appsignal.com/ruby/capistrano-monitoring)
- [Delayed::Job](https://www.appsignal.com/ruby/delayed-job-monitoring)
- [Garbage Collection](https://www.appsignal.com/ruby/garbage-collection-monitoring)
- [Global VM Lock](https://www.appsignal.com/ruby/global-vm-lock-monitoring)
- [Grape](https://www.appsignal.com/ruby/grape-monitoring)
- [GraphQL](https://www.appsignal.com/ruby/graphql-monitoring)
- [Hanami](https://www.appsignal.com/ruby/hanami-monitoring)
- [MongoDB](https://www.appsignal.com/ruby/mongodb-monitoring)
- [Padrino](https://www.appsignal.com/ruby/padrino-monitoring)
- [Puma](https://www.appsignal.com/ruby/puma-monitoring)
- [Que](https://www.appsignal.com/ruby/que-monitoring)
- [Ruby on Rails](https://www.appsignal.com/ruby/rails-monitoring)
- [Rake](https://www.appsignal.com/ruby/rake-monitoring)
- [Resque](https://www.appsignal.com/ruby/resque-monitoring)
- [Shoryuken](https://www.appsignal.com/ruby/shoryuken-monitoring)
- [Sidekiq](https://www.appsignal.com/ruby/sidekiq-monitoring)
- [Sinatra](https://www.appsignal.com/ruby/sinatra-monitoring)
- [Solid Queue](https://www.appsignal.com/ruby/solid-queue-monitoring)
- [ViewComponent](https://www.appsignal.com/ruby/view-component-monitoring)
- [Webmachine](https://www.appsignal.com/ruby/webmachine-monitoring)

### Elixir
- [Elixir](https://www.appsignal.com/elixir)
- [Absinthe](https://www.appsignal.com/elixir/absinthe-monitoring)
- [Ecto](https://www.appsignal.com/elixir/ecto-monitoring)
- [Erlang](https://www.appsignal.com/elixir/erlang-monitoring)
- [Finch](https://www.appsignal.com/elixir/finch-monitoring)
- [Oban](https://www.appsignal.com/elixir/oban-monitoring)
- [Phoenix](https://www.appsignal.com/elixir/phoenix-monitoring)
- [Plug](https://www.appsignal.com/elixir/plug-monitoring)
- [Tesla](https://www.appsignal.com/elixir/tesla-monitoring)

### Node.js
- [Node.js](https://www.appsignal.com/nodejs)
- [AMQPlib](https://www.appsignal.com/nodejs/amqplib-monitoring)
- [Apollo Gateway](https://www.appsignal.com/nodejs/apollo-gateway-monitoring)
- [BullMQ](https://www.appsignal.com/nodejs/bullmq-monitoring)
- [Express](https://www.appsignal.com/nodejs/express-monitoring)
- [Fastify](https://www.appsignal.com/nodejs/fastify-monitoring)
- [GraphQL](https://www.appsignal.com/nodejs/graphql-monitoring)
- [Knex.js](https://www.appsignal.com/nodejs/knexjs-monitoring)
- [Koa](https://www.appsignal.com/nodejs/koa-monitoring)
- [MongoDB](https://www.appsignal.com/nodejs/mongodb-monitoring)
- [Mongoose](https://www.appsignal.com/nodejs/mongoose-monitoring)
- [MySQL](https://www.appsignal.com/nodejs/mysql-monitoring)
- [NestJS](https://www.appsignal.com/nodejs/nestjs-monitoring)
- [Next.js](https://www.appsignal.com/nodejs/nextjs-monitoring)
- [Pino](https://www.appsignal.com/nodejs/pino-monitoring)
- [PostgreSQL](https://www.appsignal.com/nodejs/postgresql-monitoring)
- [Prisma](https://www.appsignal.com/nodejs/prisma-monitoring)
- [Redis](https://www.appsignal.com/nodejs/redis-monitoring)
- [Remix](https://www.appsignal.com/nodejs/remix-monitoring)
- [Restify](https://www.appsignal.com/nodejs/restify-monitoring)
- [Winston](https://www.appsignal.com/nodejs/winston-monitoring)

### JavaScript
- [JavaScript](https://www.appsignal.com/javascript)
- [React](https://www.appsignal.com/javascript/react-monitoring)
- [Vue](https://www.appsignal.com/javascript/vue-monitoring)
- [Angular](https://www.appsignal.com/javascript/angular-monitoring)
- [Ember](https://www.appsignal.com/javascript/ember-monitoring)
- [Preact](https://www.appsignal.com/javascript/preact-monitoring)
- [Stimulus](https://www.appsignal.com/javascript/stimulus-monitoring)

### Python
- [Python](https://www.appsignal.com/python)
- [Celery](https://www.appsignal.com/python/celery-monitoring)
- [Django](https://www.appsignal.com/python/django-monitoring)
- [FastAPI](https://www.appsignal.com/python/fastapi-monitoring)
- [Flask](https://www.appsignal.com/python/flask-monitoring)
- [Jinja2](https://www.appsignal.com/python/jinja2-monitoring)
- [MySQL](https://www.appsignal.com/python/mysql-monitoring)
- [Pika](https://www.appsignal.com/python/pika-monitoring)
- [PostgreSQL](https://www.appsignal.com/python/postgresql-monitoring)
- [Redis](https://www.appsignal.com/python/redis-monitoring)
- [Request](https://www.appsignal.com/python/request-monitoring)
- [SQLAlchemy](https://www.appsignal.com/python/sqlalchemy-monitoring)
- [SQLite](https://www.appsignal.com/python/sqlite-monitoring)
- [Starlette](https://www.appsignal.com/python/starlette-monitoring)
- [WSGI and ASGI](https://www.appsignal.com/python/wsgi-asgi-monitoring)

### Go
- [Go](https://www.appsignal.com/opentelemetry/go-monitoring)

### Java
- [Java](https://www.appsignal.com/opentelemetry/java-monitoring)

### PHP
- [PHP](https://www.appsignal.com/opentelemetry/php-monitoring)
- [Laravel](https://www.appsignal.com/opentelemetry/laravel-monitoring)
- [Symfony](https://www.appsignal.com/opentelemetry/symfony-monitoring)

### Rust
- [Rust](https://www.appsignal.com/opentelemetry/rust-monitoring)

## Integrations

- [OpenTelemetry](https://www.appsignal.com/opentelemetry)
- [Vercel](https://www.appsignal.com/opentelemetry/vercel-monitoring)
- [Kubernetes](https://www.appsignal.com/integrations/kubernetes)
- [AWS CloudWatch](https://www.appsignal.com/integrations/cloudwatch)

## Legal

- [Terms & Conditions](https://www.appsignal.com/terms)
- [Privacy Policy](https://www.appsignal.com/privacy-policy)
- [Cookie Policy](https://www.appsignal.com/cookie-policy)
- [GDPR compliance](https://docs.appsignal.com/appsignal/gdpr.html)
- [Contact us / Imprint](https://www.appsignal.com/contact)

## Compare (detail pages)

- [APM comparisons](https://www.appsignal.com/alternative)
- [AppSignal vs Better Stack](https://www.appsignal.com/alternative/betterstack-alternative)
- [AppSignal vs Datadog](https://www.appsignal.com/alternative/datadog-alternative)
- [AppSignal vs Honeybadger](https://www.appsignal.com/alternative/honeybadger-alternative)
- [AppSignal vs New Relic](https://www.appsignal.com/alternative/new-relic-alternative)
- [AppSignal vs Scout APM](https://www.appsignal.com/alternative/scout-apm-alternative)
- [AppSignal vs Sentry](https://www.appsignal.com/alternative/sentry-alternative)
- [AppSignal vs Solarwinds](https://www.appsignal.com/alternative/solarwinds-alternative)

## Why AppSignal (articles)

- [Better Team Communication](https://www.appsignal.com/why/better-team-communication)
- [Consolidate your monitoring with AppSignal](https://www.appsignal.com/why/consolidate-your-monitoring-with-appsignal)

## Customer Stories (case studies)

- [HR Partner](https://www.appsignal.com/customers/hr-partner)
- [Kairos](https://www.appsignal.com/customers/kairos)
- [Notesclub](https://www.appsignal.com/customers/notesclub)
- [Ragnarson](https://www.appsignal.com/customers/ragnarson)
- [Rentbrella](https://www.appsignal.com/customers/rentbrella)
- [Upside](https://www.appsignal.com/customers/upside)

## Learning Center (articles)

- [Get to know AppSignal in five minutes](https://www.appsignal.com/learning-center/get-to-know-appsignal-in-five-minutes)
- [How can I monitor background processes with Check-ins?](https://www.appsignal.com/learning-center/how-can-i-monitor-background-processes-with-check-ins)
- [How do I sort and filter sample data?](https://www.appsignal.com/learning-center/how-do-i-sort-and-filter-sample-data)
- [How to use tags in AppSignal](https://www.appsignal.com/learning-center/how-to-use-tags-in-appsignal)
- [What are namespaces?](https://www.appsignal.com/learning-center/what-are-namespaces)
- [Understanding Elixir error messages and stack traces](https://www.appsignal.com/learning-center/understanding-elixir-error-messages)
- [Understanding Python error messages and stack traces](https://www.appsignal.com/learning-center/understanding-python-error-messages)
- [Understanding Ruby error messages and backtraces](https://www.appsignal.com/learning-center/understanding-ruby-error-messages)
- [What are good and acceptable error rates?](https://www.appsignal.com/learning-center/what-are-good-and-acceptable-error-rates)
- [What is Alert Fatigue?](https://www.appsignal.com/learning-center/what-is-alert-fatigue)
- [What Is a Cron Job? Crontab Syntax Explained (With Examples)](https://www.appsignal.com/learning-center/how-can-i-use-the-cron-syntax-to-schedule-cron-jobs)
- [How do I monitor my application during development?](https://www.appsignal.com/learning-center/how-do-i-monitor-my-application-during-development)
- [How do I monitor my application during launch?](https://www.appsignal.com/learning-center/how-do-i-monitor-my-application-during-launch)
- [How do I monitor my application when scaling?](https://www.appsignal.com/learning-center/how-do-i-monitor-my-application-when-scaling)
- [How to maintain my application post-development](https://www.appsignal.com/learning-center/how-to-maintain-my-application-post-development)
- [Monitoring tool strategies](https://www.appsignal.com/learning-center/monitoring-tool-strategies)
- [What are the stages of product development?](https://www.appsignal.com/learning-center/what-are-the-stages-of-product-development)
- [What is an application performance monitoring (APM) tool?](https://www.appsignal.com/learning-center/what-is-an-apm)
- [Why should my app and server use Coordinated Universal Time (UTC)?](https://www.appsignal.com/learning-center/why-should-my-app-and-server-use-UTC)
- [What is logging?](https://www.appsignal.com/learning-center/what-is-logging)
- [What logs should I store?](https://www.appsignal.com/learning-center/what-logs-should-i-store)
- [Understanding your monitoring statistics](https://www.appsignal.com/learning-center/understanding-your-monitoring-statistics)
- [What is an N+1 query?](https://www.appsignal.com/learning-center/what-is-an-n-plus-1-query)
- [What is lazy and eager loading?](https://www.appsignal.com/learning-center/what-is-lazy-and-eager-loading)

## Product Demos

- [All demos](https://www.appsignal.com/product-demos)
- [Hatchbox Monitoring](https://www.appsignal.com/product-demos/hatchbox)
- [Kubernetes Monitoring](https://www.appsignal.com/product-demos/kubernetes)
- [MCP Server Demo](https://www.appsignal.com/product-demos/mcp-server)
- [OpenTelemetry Monitoring Demo](https://www.appsignal.com/product-demos/opentelemetry)
- [AppSignal Platform Demo](https://www.appsignal.com/product-demos/platform-overview)
- [AppSignal Wrap Demo](https://www.appsignal.com/product-demos/wrap)

## Automated Dashboards

- [Action Mailer](https://www.appsignal.com/intelligence/dashboards/action-mailer)
- [Active Job](https://www.appsignal.com/intelligence/dashboards/active-job)
- [Erlang](https://www.appsignal.com/intelligence/dashboards/erlang)
- [Heroku](https://www.appsignal.com/intelligence/dashboards/heroku)
- [Karafka](https://www.appsignal.com/intelligence/dashboards/karafka)
- [MongoDB](https://www.appsignal.com/intelligence/dashboards/mongodb)
- [NGINX](https://www.appsignal.com/intelligence/dashboards/nginx)
- [Node.js Heap Statistics](https://www.appsignal.com/intelligence/dashboards/nodejs-heap-statistics)
- [Oban](https://www.appsignal.com/intelligence/dashboards/oban)
- [PostgreSQL](https://www.appsignal.com/intelligence/dashboards/postgres)
- [Process Memory](https://www.appsignal.com/intelligence/dashboards/process-memory)
- [Puma](https://www.appsignal.com/intelligence/dashboards/puma)
- [Ruby VM](https://www.appsignal.com/intelligence/dashboards/ruby-vm)
- [Sidekiq](https://www.appsignal.com/intelligence/dashboards/sidekiq)

## Launch Week

- [Launch Week](https://www.appsignal.com/launch-week)
- [Dark Mode for the AppSignal UI](https://www.appsignal.com/launch-week/dark-mode)
- [AppSignal Logging: Query, Chart, and Alert on Your Logs](https://www.appsignal.com/launch-week/logging)
- [AI-powered debugging with hosted MCP and CLI](https://www.appsignal.com/launch-week/mcp-cli)
- [Process monitoring for cron jobs and background workers](https://www.appsignal.com/launch-week/process-monitoring)
- [Monitor Render metrics and logs with AppSignal](https://www.appsignal.com/launch-week/render)

## Rails World

- [Rails World](https://www.appsignal.com/rails-world)
- [How to travel from Schiphol Airport to Amsterdam](https://www.appsignal.com/rails-world/how-to-travel-from-schiphol-airport-to-amsterdam)
- [The history of the Beurs van Berlage](https://www.appsignal.com/rails-world/the-history-of-the-beurs-van-berlage)
- [Things to do in Amsterdam](https://www.appsignal.com/rails-world/things-to-do-in-amsterdam)
- [Top places to eat in Amsterdam](https://www.appsignal.com/rails-world/top-places-to-eat-in-amsterdam)
- [What are stroopwafels and Sjoelen?](https://www.appsignal.com/rails-world/what-are-stroopwafels-and-sjoelen)

## More pages

- [Get a demo](https://www.appsignal.com/get-demo)
- [SAML SSO](https://www.appsignal.com/add-ons/saml-sso)
- [AppSignal for Slack](https://www.appsignal.com/for/slack)
- [Multiplayer monitoring](https://www.appsignal.com/for/multiplayer-monitoring)
- [AppSignal for Hatchbox](https://www.appsignal.com/hatchbox)
- [Open Source](https://www.appsignal.com/open-source)
- [Humanitarian crises](https://www.appsignal.com/humanitarian-crises)
- [Fixing InvalidAuthenticityToken errors](https://www.appsignal.com/for/invalid_authenticity_token)
- [Jobs FAQ](https://www.appsignal.com/jobs/faq)
- [Diversity](https://www.appsignal.com/diversity)
- [Code of Conduct](https://www.appsignal.com/code-of-conduct)
- [Upgrade policy](https://www.appsignal.com/upgrade-policy)
- [Growth investment announcement](https://www.appsignal.com/appsignal-closes-usd-22-million-growth-investment)
- [Stroopwafels](https://www.appsignal.com/waffles)
- [Branding](https://www.appsignal.com/branding)
- [AI info page](https://www.appsignal.com/ai-info-page)