> ## Documentation Index
> Fetch the complete documentation index at: https://cloudinary.com/documentation/llms.txt
> Use this file to discover all available pages before exploring further.

# Cloudinary Image troubleshooting and tips


This section provides troubleshooting guidance and useful tips related to Cloudinary Image.

These topics answer questions that are commonly asked by actual Cloudinary customers.

{table:class=no-borders overview} Page|Description
---|---
[Troubleshooting image transformation errors](ts_troubleshooting_image_transformation_errors) | Use the interactive X-Cld-Error inspector tool to quickly diagnose transformation URL errors by inspecting response headers. Learn about common transformation issues and how to resolve them.
[Why am I getting a 404 (or other 40x errors) for one transformation URL while other transformed versions of that asset work?](ts_i_m_getting_a_404_or_other_40x_errors_for_my_transformed_image_while_other_versions_of_that_image_work) | Explains why 40x errors are cached at the CDN and how to resolve issues when some transformed assets return errors while other versions work. 
[How to Add a Solid Color Overlay](ts_how_to_add_a_solid_color_overlay) | Learn how to apply solid color overlays to images using a 1x1 pixel image, with options to resize, recolor, position automatically, and adjust opacity.
[Why are my Cloudinary images delivered without gzip compression (Content-Encoding)?](ts_why_are_my_cloudinary_images_delivered_without_gzip_compression_content_encoding) | Explains why Cloudinary gzips only compressible formats and how to inspect the Content-Encoding response header.
[Why am I seeing a long time to first byte (TTFB) on WebPageTest.org?](ts_why_am_i_seeing_a_long_time_to_first_byte_ttfb_on_webpagetest_org) | Explains why WebPageTest may show a long TTFB for assets delivered via HTTP2 and how to optimize performance.
[How can I update a named transformation?](ts_how_can_i_update_a_named_transformation) | Learn different methods to update a named transformation in Cloudinary, including using the management console, Admin API, and CLI SDK to regenerate derived assets.
[What's the difference between Cloudinary's automated cropping and Imagga's smart cropping?](ts_what_is_the_difference_between_cloudinary_automated_cropping_and_imagga_smart_cropping) | Understand the differences between Cloudinary's built-in content-aware cropping and the Imagga smart cropping add-on, including algorithm differences, configuration options, and quota considerations.
[Suggested transformation options for placeholder images/LQIP](ts_suggested_transformation_options_for_placeholder_images_lqip) | Suggested transformation options for low-quality image placeholders (LQIP) to use for responsive design or lazy-loading implementations.
[What are the common error codes returned in the X-Cld-Error header when delivering assets?](ts_what_are_the_common_error_codes_returned_in_the_x_cld_error_header_when_delivering_assets) | A reference guide to troubleshoot and resolve common X-Cld-Error codes returned by Cloudinary when delivering assets, with causes and solutions for each error.
[How to detect corrupted images](ts_how_to_detect_corrupted_images) | Learn how to identify and handle corrupted JPEG images during upload by using the IsCorrupt parameter.
[Force specific image when sharing links on Facebook](ts_how_can_i_force_a_specific_image_to_feature_when_sharing_my_links_on_facebook) | Learn how to use Facebook's Open Graph og:image property with Cloudinary URLs to control which image appears when sharing links on Facebook.