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The FusionAuth blog offers all kinds of insight on software development, authentication and the FusionAuth product.

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Site URL: fusionauth.io

Feed URL: fusionauth.io/blog/feed.xml

Posts: 336

Followers: 1

How to Make Your Developer Documentation Work with LLMs: Lessons from the Trenches

https://fusionauth.io/blog/llms-for-docs

Published: June 13, 2025 00:00

Engineering leaders increasingly use LLMs to evaluate authentication solutions, but most documentation isn't optimized for AI consumption. This guide shares four proven strategies we've used at FusionAuth to make our developer docs work better with…

Enterprise-Ready: How WeRoad Scaled Their Authentication Architecture with FusionAuth

https://fusionauth.io/blog/weroad-fusionauth

Published: June 9, 2025 00:00

This case study explores how WeRoad, a rapidly growing European travel company, successfully migrated from an expensive third-party authentication provider to a self-hosted solution that gave them complete control over their user data and authentication…

To Mock Or Not To Mock Your Auth: The Checklist

https://fusionauth.io/blog/to-mock-or-not-mock-auth

Published: June 3, 2025 00:00

Mocking is widely used in software development, but often for the wrong reasons. Learn about when mocking is justified and how to do it safely.

Mission-Critical Auth: How Bilt Serves Millions on Google Cloud

https://fusionauth.io/blog/bilt-fusionauth

Published: June 2, 2025 00:00

Bilt's continual expansion surfaces certain challenges. How do you choose a CIAM solution that checks all your boxes, while still being flexible, performant, and affordable?

Betty Blocks: How a Low-Code Platform Scaled to 10,000 Applications with FusionAuth

https://fusionauth.io/blog/betty-blocks-fusionauth

Published: May 20, 2025 00:00

Learn why this leading low-code platform chose FusionAuth for its unified architecture, flexible deployment options, and enterprise-grade security—all while maintaining performance at massive scale.

Last Chance: Top 5 Reasons to Attend AuthCon 2025 (May 14-15 in NYC!)

https://fusionauth.io/blog/authcon-2025

Published: May 5, 2025 00:00

Join top developers at AuthCon 2025, the first conference dedicated to Customer Identity and Access Management (CIAM), happening May 14-15 in NYC.

Time to Lift and Shift: Fine-Grained Authorization Is Changing Our Applications Forever

https://fusionauth.io/blog/fine-grained-authorization

Published: April 29, 2025 00:00

Learn how fine-grained authorization enables secure, context-aware data access control. This guide explores roles, attributes, and strategies for managing user permissions effectively.

Digital Twins: Bridging Physical Assets and Digital Identities

https://fusionauth.io/blog/digital-twins

Published: April 16, 2025 00:00

Learn about digital twins—virtual replicas of physical systems—and their role in optimizing performance and reducing downtime in the real world.

This Tax Season, Identity Costs Are Rising—Thanks to Auth0 by Okta’s IdP Tax

https://fusionauth.io/blog/idp-tax

Published: April 15, 2025 00:00

This article breaks down enterprise connection fees in platforms like Auth0 and Okta, and how FusionAuth avoids the IDP tax.

Understanding OAuth 2.0 Grant Types - A Quick Guide

https://fusionauth.io/blog/understanding-oauth2-grant-types

Published: April 10, 2025 00:00

A quick guide to OAuth 2.0 grant types: authorization code, implicit (deprecated), client credentials, and more. Choose the best flow for web apps, APIs, and devices.

Announcing FusionAuth 1.57.0 - The Webhook Wombat

https://fusionauth.io/blog/announcing-fusionauth-1-57

Published: April 8, 2025 00:00

Whether you’re processing massive numbers of webhooks or simplifying event management, version 1.57.0 improves system performance.

The Top 6 Indications You’re Doing Mocking Wrong

https://fusionauth.io/blog/6-indicators-doing-mocking-wrong

Published: April 3, 2025 00:00

Overusing mocks in software testing can lead to hidden failures and technical debt. Here's how to use local-first development tools like FusionAuth Kickstart for robust, production-ready applications.

The State of Homegrown Authentication: 2025

https://fusionauth.io/blog/state-homegrown-auth-2025

Published: April 2, 2025 00:00

Explore the 2025 landscape of homegrown authentication solutions. This FusionAuth report reveals why many development teams prefer building their own login systems over adopting multi-tenant SaaS CIAM platforms.

How to set up a Custom Domain for FusionAuth using AWS CloudFront

https://fusionauth.io/blog/cloudfront

Published: March 21, 2025 00:00

Learn how to use AWS CloudFront to Setup a Custom Domain with FusionAuth.

B2B2C vs B2B2E systems

https://fusionauth.io/blog/b2b2c-vs-b2b2e

Published: March 11, 2025 00:00

Learn the difference between B2B2C and B2B2E in SaaS. See how identity needs change when serving customers vs. employees in multi-tenant apps.

Announcing FusionAuth Version 1.56 - The SSO Snake

https://fusionauth.io/blog/announcing-fusionauth-1-56

Published: March 7, 2025 00:00

FusionAuth v1.56.0 "The SSO Snake" includes changes to custom domains, API key security and SSO bootstrapping, as well as many bug fixes.

How Multi-Tenant SaaS Hijacked Your Auth (Part 3)

https://fusionauth.io/blog/multi-tenant-hijack-3

Published: March 6, 2025 00:00

Access control flaws are a top risk in multi-tenant SaaS apps. Learn how broken tenant-level authorization happens and how to design systems that isolate tenant data securely.

How Multi-Tenant SaaS Hijacked Your Auth (Part 2)

https://fusionauth.io/blog/multi-tenant-hijack-2

Published: February 25, 2025 00:00

Misconfigured tenant infrastructure can undermine SaaS platform authentication and security. Learn how to avoid common mistakes that break isolation in multi-tenant systems.

Beyond SaaS: The Benefits of Dedicated CIAM for Modern Applications

https://fusionauth.io/blog/fusionauth-intro-webinar

Published: February 21, 2025 00:00

An overview of a recent FusionAuth webinar explaining why dedicated infrastructure for your CIAM solution is the right answer in 2025.

How Multi-Tenant SaaS Hijacked Your Auth...and How to Take It Back

https://fusionauth.io/blog/multi-tenant-hijack

Published: February 20, 2025 00:00

Reclaim control of your authentication. Multi-tenant SaaS has hijacked customer identity (CIAM). Single-tenant cloud deployments can protect your data and security.

How to Test FusionAuth SAML Configuration: Step-by-Step Tutorial 2025

https://fusionauth.io/blog/test-saml-configuration

Published: January 30, 2025 00:00

Use IAMShowcase to run SAML tests and validate your FusionAuth identity provider setup. Follow this guide to troubleshoot and confirm your SAML integration.

UrbanSitter Speeds B2B Growth and Cuts Auth Dev Time by 90% with FusionAuth

https://fusionauth.io/blog/urbansitter

Published: January 9, 2025 00:00

See how UrbanSitter selected FusionAuth to power authentication for their B2B platform. This FusionAuth case study highlights customization, support, and technical fit.

Announcing FusionAuth Version 1.55.1 - The Holiday Hippo

https://fusionauth.io/blog/announcing-fusionauth-1-55

Published: December 23, 2024 00:00

FusionAuth v1.55.1 "The Holiday Hippo" brings major updates including SAML encryption support, enhanced API key security with via expiration, configurable lambda timeouts, and more.

FusionAuth Renews IDPro Membership: Advancing Identity Education for Developers

https://fusionauth.io/blog/fusionauth-idpro-membership-benefits

Published: December 17, 2024 00:00

Learn how FusionAuth's renewed IDPro membership benefits developers. Get information about identity trends, community engagement, and educational resources that improve our CIAM solution.

FusionAuth Announces First Customer Identity and Access Management (CIAM) Conference

https://fusionauth.io/blog/authcon-press-release

Published: December 3, 2024 00:00

AuthCon 2025 is a customer identity and access management conference for developers, architects, and security pros. Join experts to explore auth best practices.

Vatix Chooses FusionAuth to Streamline Authentication and Save Developer Resources

https://fusionauth.io/blog/vatix-fusionauth

Published: November 8, 2024 00:00

What happens when your homegrown auth system is no longer sustainable?

Building A Self-hostable Product

https://fusionauth.io/blog/building-self-hostable-application

Published: September 25, 2024 00:00

Learn how to design and build a self-hostable SaaS application. This guide covers key architectural decisions, deployment models, and packaging strategies for self-hosted apps.

Session Management Options

https://fusionauth.io/blog/logouts-and-sessions

Published: September 19, 2024 00:00

Explore session management software options and how they handle logout behavior. Learn what to look for in tools that manage user sessions in modern auth systems.

Announcing FusionAuth Version 1.53.0 - Webhook Logs and New Lambdas

https://fusionauth.io/blog/announcing-fusionauth-1-53

Published: September 10, 2024 00:00

Version 1.53.0 of FusionAuth introduces two requested features. You can now see a history of webhooks and their statuses, and logins now have more logic.

Identity's Hidden Business Value

https://fusionauth.io/blog/identity-business-value

Published: September 3, 2024 00:00

Identity is a key business asset, evolving from simple logins to a unified source of truth, enhancing user experience and driving personalized services.

Inteligov Uses FusionAuth For Custom SSO, Opening Up A New Revenue Stream

https://fusionauth.io/blog/inteligov-fusionauth-sso

Published: August 7, 2024 00:00

Inteligov uses FusionAuth for all things authentication, including custom single sign-on solutions for customers. These opened up a new revenue stream for his company.

Free Webinar - Passkeys Are The Path to Enhanced Digital Security

https://fusionauth.io/blog/passkeys-webinar

Published: March 20, 2024 00:00

Join us for a free webinar to learn about passkeys, how they work, and how they can help set your business apart.

Digital Identity - Human Elements of a Connected World

https://fusionauth.io/blog/digital-identity

Published: February 20, 2024 00:00

Your identity is so much more than the pieces of paper and plastic that sit in a wallet. In today's world, your digital identity is valuable, and ever-changing.

Securing Your APIs: Verifying API Keys And Using Scopes

https://fusionauth.io/blog/securing-your-api

Published: February 5, 2024 00:00

You have APIs. You need to make sure you know who is calling them and what they can do. What are your options?

How Sales Engineering Works at FusionAuth

https://fusionauth.io/blog/sales-engineering

Published: January 11, 2024 00:00

Dive into the role of the Sales Engineer at FusionAuth. Learn how we make it easy to adopt a new CIAM provider.

How SATAC Uses FusionAuth To Improve Applicants' Experience

https://fusionauth.io/blog/satac-fusionauth-improve-experience

Published: November 29, 2023 00:00

South Australian Tertiary Admissions Centre implemented FusionAuth to improve their applicants' experience and enable a modern experience, including with social sign-on.

Unlocking the Future of CIAM - FusionAuth and Updata Partners Join Forces

https://fusionauth.io/blog/fusionauth-funding

Published: November 1, 2023 00:00

FusionAuth announces a $65 million strategic investment from Updata Partners to accelerate product innovation and expand identity solutions for developers.

What’s Next - A Note From FusionAuth’s CEO

https://fusionauth.io/blog/fusionauth-and-updata

Published: November 1, 2023 00:00

Learn how FusionAuth simplifies customer identity and access management for developers, and why partnering with Updata will help scale to meet demand.

Create .NET web applications with FusionAuth templates

https://fusionauth.io/blog/dotnet-templates

Published: October 26, 2023 00:00

Reduce the overhead associated with customer authentication and authorization when creating a .NET web application using FusionAuth templates.

How to set up an anonymous user flow

https://fusionauth.io/blog/anonymous-user

Published: October 2, 2023 00:00

Learn how to enable anonymous user access and account creation with FusionAuth. Support guest sessions before full registration.

FusionAuth Named a Customer Identity High Performer for Fall 2023

https://fusionauth.io/blog/fusionauth-g2-fall23

Published: September 22, 2023 00:00

G2’s Fall 2023 reports are here, and we are honored to continue to be recognized as a high performer in the customer identity space year after year.

SOC 2 - Inside The Matrix

https://fusionauth.io/blog/soc2-matrix

Published: September 20, 2023 00:00

See which SOC2 vendor we chose to help us with our SOC2 and why, plus get a downloadable SOC2 vendor matrix you can use for your business.

Get More Value Out of FusionAuth Using the APIs for User Maintenance

https://fusionauth.io/blog/get-more-value-out-of-fusionauth

Published: September 1, 2023 00:00

Customizing the order for your favorite food can make a good meal better. Customizing your end-users experience with user maintenance can make their experience with your application even better.

How Treefort Systems Uses FusionAuth to Power Private-Label Media Streaming for Thousands

https://fusionauth.io/blog/treefort-uses-fusionauth-for-all-auth

Published: August 30, 2023 00:00

Treefort Systems, a white-label media streaming platform, uses FusionAuth to powers auth for everything, including an admin portal, media streaming apps, an API, an internal chat service. They to authenticate users on the web, iOS, and Android.

From ALB to Caddy - Our Wandering Path to Supporting Thousands of Domain Names

https://fusionauth.io/blog/unlimited-domains-fusionauth

Published: August 24, 2023 00:00

A few weeks ago we announced that FusionAuth Cloud now supports unlimited custom domains. Here’s how we actually built it.

VC Free - How we Bootstrapped FusionAuth to Profitability

https://fusionauth.io/blog/fusionauth-vc-free

Published: August 17, 2023 00:00

FusionAuth - Our story of moving from profanity filters to a bootstrapped and profitable developer-focused business in the CIAM market.

Using the FusionAuth React SDK in a React application

https://fusionauth.io/blog/react-example-application

Published: August 16, 2023 00:00

In this guide, we'll showcase how to use the FusionAuth React SDK to implement the login, logout, and registration flows in a React application.

FusionAuth named to the 2023 Inc 5000 list

https://fusionauth.io/blog/fusionauth-inc-5000

Published: August 15, 2023 00:00

FusionAuth has been named one of the fastest-growing companies in the United States with 354% revenue growth in the past 3 years.

Announcing FusionAuth 1.47

https://fusionauth.io/blog/announcing-fusionauth-1-47

Published: August 14, 2023 00:00

This update includes performance improvements, the ability to include preferred languages on the basic registration form, and SAMLv2 assertion encryption.

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