Technical checks
Images checks
Image CDNs installed as plugins do not host a copy of your picture — they proxy it, serving your own file from their address. Search engines credit the image to that address rather than to you, every image on the page depends on a third party staying up, and Netrix cannot resize a file it does not control. Where the address proves which of your files it is serving, Netrix can point the page back at your own copy. You’ll find 11 checks in this group.
| State | Evidence | Owner |
|---|---|---|
| Found | ImagesOriginal page and available evidence recorded | Audit |
| Reviewed | Decision recordedA person checked the target and proposed value | Human |
| Checked | Public page readLive result recorded separately | Netrix |
All checks in this group
Open a check to see what triggered it and what to do next.
Images Served From Another Domain
Image CDNs installed as plugins do not host a copy of your picture — they proxy it, serving your own file from their address. Search engines credit the image to that address rather than to you, every image on the page depends on a third party staying up, and Netrix cannot resize a file it does not control. Where the address proves which of your files it is serving, Netrix can point the page back at your own copy.
Large Images
Optimize image sizes to be under 100KB to improve load times and SEO.
Images Missing Alt Text
Include alt text for all images to improve accessibility and SEO.
Non-Descriptive Image Names
Use descriptive filenames like "red-running-shoes.jpg" instead of "IMG001.jpg" for better SEO.
Suboptimal Image Format
Use JPEG for photos, PNG for graphics with transparency, and WebP for better compression.
Very Large Images
Images over 500KB significantly impact load times. Compress or resize for web use.
Images Missing Alt Attribute
All images should have an alt attribute, even if empty for decorative images.
Incorrectly Sized Images
Images should be served at the dimensions they are displayed. Resize images to avoid bandwidth waste.
Images Missing Size Attributes
Without width and height the browser cannot reserve space, so the page shifts as images load — the layout shift Core Web Vitals measures.
Browser-Selected Image Failed to Load
The selected HTTP(S) image completed but failed browser decoding under this crawl's device profile. Inspect the selected URL and response. Unsettled or unselected lazy images remain unknown; this is not a full network inventory.
Rendered Image Aspect Ratio to Review
The loaded image's rendered aspect ratio differs by more than 10% from its browser-reported intrinsic ratio. Review intentional stretching. Transforms, object-fit overrides, padding, borders and zero dimensions are unqualified. Density-corrected natural dimensions do not establish encoded pixel or byte waste.