What Is GraphQL?
LibraryGraphQL is a query language and runtime for APIs, developed at Facebook and open-sourced in 2015. Clients describe the exact shape of the data they need in a single request, which replaces many REST endpoints with one typed schema. On websites it shows up through client libraries such as Apollo Client, urql and Relay, or through hosted gateways like Hasura and Shopify's Storefront API.
Detect GraphQL on any website:
Why GraphQL Matters
Libraries and third-party services are where a site's real behaviour lives: analytics, payments, auth, UI components and animation all arrive as scripts the browser can see. Knowing that GraphQL is on a page tells you about its dependencies, its privacy footprint, and sometimes its build pipeline — and it helps you tell template-driven stacks from hand-assembled ones. We've fingerprinted GraphQL on 1 live sites in our database, so the answers here are grounded in real scan data — not marketing copy.
Does GraphQL Mean a Site Was Built With AI?
GraphQL on its own does not prove AI involvement.
Standard modern web tooling — its presence alone doesn't indicate AI-assisted development.
How this feeds the score: builder fingerprints, bundle artifacts and AI-tool traces are weighed separately from stack context like frameworks, libraries and hosting. The full breakdown is on How scores work.
How Websites Using GraphQL Work
- Single `/graphql` endpoint accepting typed queries, mutations and subscriptions
- Strongly typed schema with introspection
- Client caches (Apollo, urql, Relay) that normalise responses
- Common backend for headless CMSs and e-commerce storefronts
Best Practices When Working With GraphQL
Based on patterns in our scan dataset and the detection evidence tiers.
- →Start by running a GraphQL detection scan on any URL you're evaluating — the 80+ signal engine returns a confidence score plus the exact markers it matched, which beats reading view-source by hand.
- →Cross-check the result against the full detection evidence in /how-scores-work — confidence tiers tell you whether a match is strong (headers + scripts) or circumstantial (a single HTML pattern).
How we detect GraphQL — see our methodology: AI Influence Score calculation, evidence tiers, and fingerprint signal types.
How Our Detector Identifies GraphQL
Our scanner analyzes multiple layers of a website's technical fingerprint to detect GraphQL usage.
- Requests or script references to a /graphql endpoint
- Bundle references to @apollo/client, urql, graphql-request or relay-runtime
- Serialized Apollo cache (`__APOLLO_STATE__`) in the page HTML
Websites Built With GraphQL
Real sites detected by our scanner
Frequently Asked Questions About GraphQL
What is GraphQL?+
GraphQL is a query language and runtime for APIs, developed at Facebook and open-sourced in 2015. Clients describe the exact shape of the data they need in a single request, which replaces many REST endpoints with one typed schema. On websites it shows up through client libraries such as Apollo Client, urql and Relay, or through hosted gateways like Hasura and Shopify's Storefront API.
Does GraphQL mean a website was built with AI?+
GraphQL on its own does not prove AI involvement. Standard modern web tooling — its presence alone doesn't indicate AI-assisted development.
Why does GraphQL matter?+
Libraries and third-party services are where a site's real behaviour lives: analytics, payments, auth, UI components and animation all arrive as scripts the browser can see. Knowing that GraphQL is on a page tells you about its dependencies, its privacy footprint, and sometimes its build pipeline — and it helps you tell template-driven stacks from hand-assembled ones. We've fingerprinted GraphQL on 1 live sites in our database, so the answers here are grounded in real scan data — not marketing copy.
How do we detect GraphQL?+
Our scanner checks for these signals: Requests or script references to a /graphql endpoint; Bundle references to @apollo/client, urql, graphql-request or relay-runtime; Serialized Apollo cache (`__APOLLO_STATE__`) in the page HTML. Each match contributes to a confidence score, and the full evidence tiers are documented at /how-scores-work.
How many websites using GraphQL are in the database?+
We've fingerprinted 1+ live sites built with GraphQL across our scan dataset. The list refreshes as new scans come in.
What are the typical characteristics of a GraphQL website?+
Single `/graphql` endpoint accepting typed queries, mutations and subscriptions. Strongly typed schema with introspection. Client caches (Apollo, urql, Relay) that normalise responses. Common backend for headless CMSs and e-commerce storefronts
Related Tools & Technologies
Other libraries and services we detect
Ready to put GraphQL detection to work?
You now know what GraphQL is, why it matters, how to spot it, and where the detection signals come from. The next step is using that knowledge on a real URL — yours, a competitor's, or a prospect's.