diff --git a/src/embed-extractor/Dropload.ts b/src/embed-extractor/Dropload.ts
index c824998..09acbe3 100644
--- a/src/embed-extractor/Dropload.ts
+++ b/src/embed-extractor/Dropload.ts
@@ -8,6 +8,8 @@ export class Dropload implements EmbedExtractor {
 
   readonly label = 'Dropload';
 
+  readonly ttl = 900000; // 15m
+
   private readonly fetcher: Fetcher;
 
   constructor(fetcher: Fetcher) {
diff --git a/src/embed-extractor/EmbedExtractors.ts b/src/embed-extractor/EmbedExtractors.ts
index 5966a69..e1ee59d 100644
--- a/src/embed-extractor/EmbedExtractors.ts
+++ b/src/embed-extractor/EmbedExtractors.ts
@@ -9,7 +9,7 @@ export class EmbedExtractors {
 
   constructor(embedExtractors: EmbedExtractor[]) {
     this.embedExtractors = embedExtractors;
-    this.urlResultCache = new TTLCache({ max: 1024, ttl: 900000 }); // 15m
+    this.urlResultCache = new TTLCache({ max: 1024 });
   }
 
   readonly handle = async (ctx: Context, url: URL, language: string): Promise<UrlResult> => {
@@ -24,7 +24,7 @@ export class EmbedExtractors {
     }
 
     urlResult = await embedExtractor.extract(ctx, url, language);
-    this.urlResultCache.set(url.href, urlResult);
+    this.urlResultCache.set(url.href, urlResult, { ttl: embedExtractor.ttl });
 
     return urlResult;
   };
diff --git a/src/embed-extractor/SuperVideo.ts b/src/embed-extractor/SuperVideo.ts
index 5fb5ee6..15275c2 100644
--- a/src/embed-extractor/SuperVideo.ts
+++ b/src/embed-extractor/SuperVideo.ts
@@ -8,6 +8,8 @@ export class SuperVideo implements EmbedExtractor {
 
   readonly label = 'SuperVideo';
 
+  readonly ttl = 900000; // 15m
+
   private readonly fetcher: Fetcher;
 
   constructor(fetcher: Fetcher) {
diff --git a/src/embed-extractor/types.ts b/src/embed-extractor/types.ts
index 24fd16c..a54df07 100644
--- a/src/embed-extractor/types.ts
+++ b/src/embed-extractor/types.ts
@@ -5,6 +5,8 @@ export interface EmbedExtractor {
 
   readonly label: string;
 
+  readonly ttl: number;
+
   readonly supports: (url: URL) => boolean;
 
   readonly extract: (ctx: Context, url: URL, language: string) => Promise<UrlResult>;