diff --git a/frontends/nextjs/src/lib/screenshot/types.ts b/frontends/nextjs/src/lib/screenshot/types.ts
new file mode 100644
index 000000000..93ef714b8
--- /dev/null
+++ b/frontends/nextjs/src/lib/screenshot/types.ts
@@ -0,0 +1,30 @@
+export interface ScreenshotAnalysisPayload {
+  title: string
+  url: string
+  viewport: {
+    width: number
+    height: number
+  }
+  textSample: string
+  htmlSample: string
+}
+
+export interface ScreenshotAnalysisMetrics {
+  wordCount: number
+  headingCount: number
+  h1Count: number
+  h2Count: number
+  h3Count: number
+  imgCount: number
+  imgMissingAltCount: number
+  linkCount: number
+  buttonCount: number
+  formCount: number
+  inputCount: number
+}
+
+export interface ScreenshotAnalysisResult {
+  report: string
+  metrics: ScreenshotAnalysisMetrics
+  warnings: string[]
+}