MediaToURL

Link Doctor Diagnostics

Link Doctor — URL Diagnostics

Inspect any public media link to diagnose CORS restrictions, Content-Disposition headers, SSL status, and embed compatibility before publishing.

Diagnostic Frequently Asked Questions

Why does a media link download instead of opening in the browser?

The server response controls how the browser handles the file. Check the reported Content-Type and whether the response includes Content-Disposition: attachment. Do not assume the filename or extension alone controls the behavior.

What does a CORS error mean for a media link?

The file may still exist and open directly in its own tab, but another website or browser script cannot fetch the binary data across origins without explicit Access-Control-Allow-Origin permission.

Can Link Doctor fix a broken external link automatically?

Link Doctor diagnoses response and delivery problems, but it cannot alter external servers. Hosting the file directly on MediaToURL creates a new high-speed direct CDN URL.

What is HTTP 206 Partial Content?

HTTP 206 Partial Content is returned when a server supports byte-range requests, allowing video and audio players to seek through timelines without buffering the entire file.

Why does a URL work in my browser but fail on my website?

Opening a URL directly in an address bar and embedding it inside another site are different request contexts. The website may be blocked by anti-hotlinking headers, Referer policies, or CORS restrictions.

Reliable Edge Media Delivery

Replace Problematic Links with MediaToURL Tools

Avoid CORS errors, expiring signed URLs, and incorrect Content-Type headers. Upload your media directly to MediaToURL for permanent, zero-egress direct links.

Image to URL Generator

Instant image hosting with zero CORS or hotlink blocks.

Screenshot to URL Desk

Paste ⌘V screenshots with client-side privacy redaction.

MP4 Video to Link

Fast-streaming MP4 links with full HTTP 206 byte-range seeking.

PDF to Direct Link

Guaranteed inline browser viewing without forced downloads.

Audio to Link Studio

Direct MP3 streaming with decoded waveform preview.

All 8 Converters Directory

Browse all media link and web preview workspaces.