It looks like this is a web page, not a feed. I looked for a feed associated with this page, but couldn't find one. Please enter the address of your feed to validate.

Source: https://pinboard.opera.com/view/3a77c251-4cda-4a25-811c-5404ce2a0d00

  1. <!doctype html><html lang="en"><head><meta charset="utf-8"/><link rel="icon" href="/favicon.ico"/><meta name="viewport" content="width=device-width,initial-scale=1"/><meta name="theme-color" content="#ffffff" media="(prefers-color-scheme: light)"><meta name="theme-color" content="#2A343D" media="(prefers-color-scheme: dark)"><meta name="version" content="6903f1af664059cfd67ef32b1e7385e8dfed5317"/><link rel="apple-touch-icon" href="/logo192.png"/><link rel="manifest" href="/manifest.json"/><link rel="stylesheet" href="https://fonts.googleapis.com/css?family=Roboto:300,400,500,700&display=swap"/><link rel="stylesheet" href="https://fonts.googleapis.com/icon?family=Material+Icons"/><title>Pinboard 38</title><meta name="twitter:card" content="summary_large_image"/><meta property="og:type" content="website"/><meta property="og:title" content="Pinboard 38"/><meta property="og:description" content="Made with Opera Browser"/><meta property="og:image" content="https://pinboard.opera.com/thumbnail.png"/><meta property="og:url" content="https://pinboard.opera.com/view/3a77c251-4cda-4a25-811c-5404ce2a0d00"/><script defer="defer" src="/static/js/main.fd155258.js"></script><link href="/static/css/main.7509b111.css" rel="stylesheet"></head><body><noscript>You need to enable JavaScript to run this app.</noscript><div id="root"></div></body></html>
Copyright © 2002-9 Sam Ruby, Mark Pilgrim, Joseph Walton, and Phil Ringnalda