diff --git a/uiharu.ts b/uiharu.ts
index 1c5c636..2e0f90c 100644
--- a/uiharu.ts
+++ b/uiharu.ts
@@ -139,6 +139,15 @@ const readableStreamToString = async (stream?: ReadableStream): string => {
     return result;
 };
 
+const isDomainSuffix = (known: string, user: string) => {
+    if(!known.startsWith('.'))
+        known = '.' + known;
+    if(!user.startsWith('.'))
+        user = '.' + user;
+
+    return user.endsWith(known);
+};
+
 const isAllowedOEmbedDomain = (domain: string): Boolean => {
     if(!domain.startsWith('.'))
         domain = '.' + domain;
@@ -373,9 +382,13 @@ const parseLinkHeader = (header: string) => {
 const extractOEmbedData = async (response: Response, html, url: string, urlInfo: URL) => {
     let oEmbedUrl: string = '';
 
-    // idk how long i'll bother with this for
-    if(urlInfo.host === 'x.com' || urlInfo.host === 'twitter.com')
+    // TODO: maintain a fucking list because its too difficult for services to just provide <link rel=alternate> tags
+    if(isDomainSuffix('x.com', urlInfo.host) || isDomainSuffix('twitter.com', urlInfo.host))
         oEmbedUrl = `https://publish.twitter.com/oembed?dnt=true&omit_script=true&url=${encodeURIComponent(url)}`;
+    else if(isDomainSuffix('soundcloud.com', urlInfo.host))
+        oEmbedUrl = `https://soundcloud.com/oembed?format=json&url=${encodeURIComponent(url)}`;
+    else if(isDomainSuffix('tiktok.com', urlInfo.host))
+        oEmbedUrl = `https://www.tiktok.com/oembed?url=${encodeURIComponent(url)}`;
     else if(html !== undefined)
         oEmbedUrl = html('link[rel="alternate"][type="application/json+oembed"]').first()?.attr('href')?.trim() ?? '';
 
@@ -717,7 +730,7 @@ const requestHandler = async (req: Request): Response => {
         const urlHash = encodeBase64Url(
             await crypto.subtle.digest('SHA-256', new TextEncoder().encode(urlParamRaw))
         );
-        const cacheKey = `uiharu:metadata:fv${formatVersion}:${urlHash}`;
+        const cacheKey = `uiharu:${appVersion}:md:fv${formatVersion}:${urlHash}`;
         const cacheInfo = await cache.get(cacheKey);
         if(cacheInfo !== undefined)
             return new Response(