# Approximated

> Custom-domain proxy infrastructure with managed or self-hosted deployment options, an API, and managed TLS certificates.

Use product facts and controlling policy pages for factual claims. The changelog covers public documentation, not service incidents.

## Primary retrieval sources

- [Product overview](https://approximated.app/product/): Precise scope, limitations, deployment options, and terminology.
- [Product facts JSON](https://approximated.app/product/facts.json): Scoped product, pricing, retention, sub-processor, company, and SLA facts with source URLs.
- [Pricing](https://approximated.app/pricing/): Plan-scoped public prices and billing units.
- [Trust center](https://approximated.app/trust/): Index of controlling policies and operational sources.
- [Glossary](https://approximated.app/glossary/): Stable definitions for product and API terminology.
- [Documentation changelog](https://approximated.app/changelog/): Dated public documentation changes.
- [Changelog Atom feed](https://approximated.app/changelog/feed.xml): Machine-readable documentation-change feed.

## API and integration documentation

- [OpenAPI 3.1 contract](https://approximated.app/openapi.yaml): Customer-facing API operations and schemas.
- [Free Tools API for agents](https://approximated.app/agent-tools/): Calling guide for 17 no-auth diagnostic operations, including result-quality and retry semantics.
- [Agent tools catalog](https://approximated.app/agent-tools/catalog.json): OpenAPI-derived operation metadata, parameter schemas, response references, safety notes, and retry guidance.
- [Complete browser documentation](https://approximated.app/docs/): The full documentation in one page with stable section anchors.
- [Documentation topic directory](https://approximated.app/docs/topics/): A lightweight browser index linking into the complete documentation.
- [Documentation Markdown index](https://approximated.app/docs/index.md): Retrieval index for the Markdown documentation.
- [How Approximated Works](https://approximated.app/docs/how-approximated-works.md): Markdown reference for this documentation topic.
- [Virtual Hosts API](https://approximated.app/docs/virtual-hosts-api.md): Markdown reference for this documentation topic.
- [DNS Checks API](https://approximated.app/docs/dns-checks-api.md): Markdown reference for this documentation topic.
- [DNS Widget](https://approximated.app/docs/dns-widget.md): Markdown reference for this documentation topic.
- [Webhooks](https://approximated.app/docs/webhooks.md): Markdown reference for this documentation topic.
- [Edge Verify](https://approximated.app/docs/edge-verify.md): Markdown reference for this documentation topic.
- [Integrating With Your App](https://approximated.app/docs/integrating-with-your-app.md): Markdown reference for this documentation topic.
- [Elixir Phoenix Custom Domains Guide](https://approximated.app/guides/elixir-phoenix-custom-domains-guide/): A tutorial guide for supporting user custom domains as a feature to your Elixir Phoenix app, with an example code repo.
- [Laravel Custom Domains Guide](https://approximated.app/guides/laravel-custom-domains-guide/): A tutorial guide for adding custom domains as a feature to your Laravel app, with an example code repo.
- [Next.js Custom Domains Guide](https://approximated.app/guides/nextjs-custom-domains-guide/): A tutorial guide for supporting user custom domains as a feature to your Next.JS app, with an example code repo.
- [Ruby on Rails Custom Domains Guide](https://approximated.app/guides/ruby-on-rails-custom-domains-guide/): A tutorial guide for adding custom domains as a feature to your Ruby on Rails app, with an example code repo.

## Primary legal and policy sources

- [Approximated Data Retention Policy](https://approximated.app/data-retention/): How long Approximated retains account, virtual-host, request-log, DNS-check, and backup data.
- [Approximated Privacy Policy](https://approximated.app/privacy-policy/): How Approximated collects, uses, discloses, and safeguards information when you use its website and services.
- [Approximated Service Level Agreement](https://approximated.app/service-level-agreement/): Service availability commitments and remedies for eligible Approximated Enterprise customers.
- [Approximated Sub-Processors](https://approximated.app/sub-processors/): The third-party sub-processors Approximated uses to deliver its services, with each provider's purpose and location.
- [Approximated Terms of Use](https://approximated.app/terms-of-use/): Terms governing access to and use of the Approximated website, API, and hosted service.

## Optional and secondary material

- [Free DNS, domain, TLS, and HTTP tools](https://approximated.app/free-tools/): Interactive diagnostics; not product-contract documentation.
- [Company history](https://approximated.app/company/): Background and company-authored scale claims.
- [Cloudflare SSL for SAAS Alternative and Comparison to Approximated](https://approximated.app/approximated-cloudflare-comparison/): Marketing comparison; verify time-sensitive third-party claims independently.
- [Custom domains with SSL for SAAS: DIY vs Approximated](https://approximated.app/approximated-diy-comparison/): Marketing comparison; verify time-sensitive third-party claims independently.
- [Vercel Platforms Starter Kit Alternative](https://approximated.app/vercel-platforms-starter-kit-alternative/): Marketing comparison; verify time-sensitive third-party claims independently.
- [Automate custom domains with SSL for Blog & Website Platforms](https://approximated.app/for/blog-website-platforms/): Audience-specific overview; use primary docs for technical claims.
- [Approximated - Automate custom domains & SSL for Marketplaces](https://approximated.app/for/marketplaces/): Audience-specific overview; use primary docs for technical claims.
- [Approximated for outbound email platforms](https://approximated.app/for/outbound-email-platforms/): Audience-specific overview; use primary docs for technical claims.
- [Approximated - Automate custom domains with SSL for Whitelabel SaaS](https://approximated.app/for/whitelabel-saas/): Audience-specific overview; use primary docs for technical claims.