On nearly every website I visit, pages appear as plain, vertically stacked HTML, as if the CSS files are not loading. Some sites are almost entirely gray with empty icons. This affects GitHub, YouTube, Cookie Clicker, ChatGPT, Club Penguin Journey, Speedrun, PythonAnywhere, Discord, and my own sites hosted with GitHub Pages. Google, Fandom, and Google Search Console still look normal. Reloading, restarting the browser, shutting down the computer, and updating Opera have not helped. What could be preventing stylesheets and other site resources from loading?
3 Answers
This can also happen when your DNS resolver or a local caching DNS service is misconfigured. The pages themselves may load, but requests for the stylesheet domains fail. Try switching temporarily to a reliable public DNS provider or testing from a different network, such as a phone hotspot. If the sites work there, the issue is probably with your network, DNS, proxy, or filtering configuration.
The fact that restarting and updating did not help suggests this is probably not a temporary browser glitch. Open the browser's developer tools and check the Console or Network tab while loading a broken page. Failed CSS requests, DNS errors, or blocked-resource messages should reveal whether the problem is the browser, an extension, or the connection.
Look through Opera's settings for an option related to viewing pages without styles, and also check extensions that block ads, scripts, trackers, or external content. Try a private window with extensions disabled, then compare the result with another browser. If only Opera is affected, resetting its settings or creating a fresh browser profile may identify the problem.
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