jsDelivr FAQ

Answers to your most common questions about jsDelivr.

Quick, simple, and helpful information at a glance.

What is jsdelivr?
Jsdelivr is one of the world's largest open-source content delivery networks (CDN) that helps developers deliver their web content faster and more efficiently.
How do I use jsdelivr?
To use jsdelivr, you can simply include the jsdelivr CDN URL in your website's code, replacing the regular URL for the JavaScript, CSS, or font files you want to use.
How do I know if jsdelivr is working correctly on my website?
You can check if jsdelivr is working correctly on your website by using a browser's developer tools to check if the files are being loaded from the jsdelivr CDN.
Why am I getting a 404 error when using jsdelivr?
A 404 error means the requested file or resource is not found. This could happen if the file has been moved or deleted from the jsdelivr CDN, or if the file name or path is incorrect.
How can I fix a 404 error with jsdelivr?
You can fix a 404 error with jsdelivr by checking the file name and path to make sure they are correct, or by reaching out to the jsdelivr support team for assistance.
What should I do if jsdelivr is causing my website to load slowly?
If jsdelivr is causing your website to load slowly, you can try using a different CDN or hosting provider, or optimizing the size and loading time of your website's files.
Can I use jsdelivr on non-website projects?
Yes, you can use jsdelivr on non-website projects such as mobile apps or desktop applications.
Is jsdelivr free to use?
Yes, jsdelivr is free to use for developers and website owners.
Why am I getting a 403 error when using jsdelivr?
A 403 error means access to the requested file or resource is forbidden. This could happen if the file has specific permissions set, or if your IP or browser is blocked.
How can I fix a 403 error with jsdelivr?
You can fix a 403 error with jsdelivr by ensuring your IP or browser is not blocked, or contacting jsdelivr support for help.
Is jsdelivr compatible with all browsers?
Yes, jsdelivr is compatible with all modern and popular browsers.
Can I use jsdelivr with my CMS platform?
Yes, jsdelivr integrates with popular CMS platforms like WordPress, Drupal, and Joomla.
How can I update a file on jsdelivr's CDN?
You can update a file on jsdelivr's CDN by uploading the new version to your website's server. Jsdelivr will automatically serve the updated version.
Can I use jsdelivr for private or internal projects?
Yes, you can use jsdelivr for private or internal projects by using a custom subdomain and password protection.
Why am I getting a 500 error when using jsdelivr?
A 500 error means there is an internal server error on jsdelivr's end. This could be due to a server issue or maintenance. You can try again later or contact jsdelivr support for updates.
How often does jsdelivr's CDN cache files?
Jsdelivr's CDN refreshes cached files every 24 hours, but you can force a refresh by adding a version parameter to the CDN URL.
Can I use jsdelivr with SSL?
Yes, jsdelivr supports SSL for all files and projects.
Why am I getting a CORS error when using jsdelivr?
A CORS error means the browser is blocking the request due to cross-origin resource sharing restrictions. This could be due to incorrect file paths, file permissions, or server configurations.
How can I fix a CORS error with jsdelivr?
You can fix a CORS error with jsdelivr by checking file paths, permissions, or server configurations, or by reaching out to jsdelivr support for assistance.
Is there a limit to the file size I can use on jsdelivr?
Yes, jsdelivr has a file size limit of 500MB per file.
What is the maximum allowed URL length for jsdelivr?
Jsdelivr allows URLs up to 2000 characters long.
Can I use jsdelivr without registering?
Yes, you can use jsdelivr without registering for an account, but you may have a better experience with an account for managing projects and customization options.
Why am I getting a "not authorized" error when using jsdelivr?
A "not authorized" error means you do not have the proper permissions to access the requested file or resource. This could be due to incorrect file paths or permissions.
How can I fix a "not authorized" error with jsdelivr?
You can fix a "not authorized" error with jsdelivr by checking the file paths and permissions, or by reaching out to jsdelivr support for assistance.
Can I use jsdelivr for large-scale commercial projects?
Yes, you can use jsdelivr for large-scale commercial projects, but you may need to upgrade to a higher plan for better performance and higher file limits.
Does jsdelivr have any performance or speed guarantees?
Jsdelivr does not have specific performance or speed guarantees, but it constantly works on improving its CDN to provide fast and efficient content delivery.
What should I do if I encounter a bug or issue with jsdelivr?
If you encounter a bug or issue with jsdelivr, you can report it to the jsdelivr team through their GitHub repository.
Can I contribute to jsdelivr development?
Yes, you can contribute to jsdelivr development by submitting pull requests, reporting issues, or helping with documentation and translations on their GitHub repository.