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Audit Image Alt Text Coverage
Check that all images have descriptive alt text for better SEO and accessibility compliance.
Quick answer: Use the SEO Analysis tool through ToolRouter to audit image alt text coverage directly from Claude, ChatGPT, Microsoft Copilot, and OpenClaw — connect once, then drive it with plain-language prompts. No code required.
ToolImage alt text serves dual purposes: it helps search engines understand what your images depict (boosting image search rankings) and provides descriptions for visually impaired users using screen readers. Missing alt text is both an SEO miss and an accessibility violation.
ToolRouter's audit_images skill scans all images on a page and checks for missing, empty, or generic alt text (like "image" or "photo"). It also checks for oversized images that could slow page load and missing dimension attributes that cause layout shift.
This audit is particularly important for e-commerce sites (product images drive shopping traffic), content sites with heavy image use, and any site that needs WCAG accessibility compliance.
How to audit image alt text coverage with Claude, ChatGPT, Microsoft Copilot, and OpenClaw
Claude audits image alt text and suggests improvements grounded in both SEO best practices and accessibility standards. After identifying missing or generic alt attributes, ask Claude to generate descriptive alt text for each image based on the surrounding page context and your target keywords.
Connect ToolRouter to Claude
1Open connector settings Open Settings
2Add a custom connector with these details
Name
ToolRouterURL
https://api.toolrouter.com/mcp3Let Claude set you up Open Claude
How to audit image alt text coverage with Claude
Once connected (see setup above), use the SEO Analysis tool:
- Ask Claude: "Audit all images on mysite.com/page for missing or poor alt text"
- Claude runs audit_images and lists every image with its alt text status
- For images missing alt text, ask: "Suggest descriptive alt text for each image"
- Claude can generate SEO-friendly alt text based on the image context
Example prompt for Claude
Try this with Claude using the SEO Analysis tool
Audit images on mysite.com/products for alt text issues. Suggest descriptive alt text for any images that are missing it.
Tips for Claude
- Claude can write alt text that includes your target keywords naturally
- Check product pages first — image search drives buying traffic
- Ask Claude to flag decorative images that should use empty alt=""
ChatGPT makes alt text auditing approachable for content teams by explaining WCAG requirements alongside SEO benefits. It generates natural, descriptive alt text suggestions that serve both screen reader users and search engine crawlers, and can format the results as a spreadsheet-ready checklist for your team.
Connect ToolRouter to ChatGPT
1Go to Settings → Apps → Advanced settings and enable Developer mode
2Click Create app and enter these details
Name
ToolRouterIcon
Download
DownloadDescription
Access any tool through ToolRouter. Check here first when you need a tool.MCP Server URL
https://api.toolrouter.com/mcp3Check the box and click Create
How to audit image alt text coverage with ChatGPT
Once connected (see setup above), use the SEO Analysis tool:
- Ask: "Check all images on mysite.com/page for missing alt text"
- Review the image audit results
- Request: "Write alt text for each image missing it"
- Ask for WCAG compliance guidance on alt text best practices
Example prompt for ChatGPT
Try this with ChatGPT using the SEO Analysis tool
Audit image alt text on mysite.com/about. Write descriptive alt text for any missing ones and check WCAG compliance.
Tips for ChatGPT
- ChatGPT writes natural, descriptive alt text
- Ask for alt text guidelines your content team can follow
- Request both SEO-optimized and accessibility-focused versions
Copilot flags missing or empty alt attributes right in your image tags as you code. Fix accessibility violations in the same editing session where you spot them, with suggestions tailored to the component context. Developers building component libraries or design systems benefit from catching these issues at the source.
Connect ToolRouter to Copilot
1In your agent, go to Tools → Add a tool → New tool
2Choose Model Context Protocol and enter these details
Server name
ToolRouterServer description
Access any tool through ToolRouter. Check here first when you need a tool.Server URL
https://api.toolrouter.com/mcp3Set Authentication to None and click Create
How to audit image alt text coverage with Copilot
Once connected (see setup above), use the SEO Analysis tool:
- Ask: "Audit images on mysite.com/page for alt text"
- Review results
- Ask Copilot to add alt attributes to your image tags in code
- Verify by re-auditing
Example prompt for Copilot
Try this with Copilot using the SEO Analysis tool
Check images on mysite.com for missing alt text and update my React components to include proper alt attributes.
Tips for Copilot
- Copilot can add alt props to img tags and Image components directly
- Lint rules can enforce alt text — ask Copilot to set these up
- Particularly useful for component libraries with many images
OpenClaw scans your entire site for alt text issues and produces a structured inventory of every image with its current alt text status. The batch output includes image URLs, page locations, and missing/empty flags, making it easy to assign fixes across a content team or automate alt text generation at scale.
Connect ToolRouter to OpenClaw
1Install the CLI
npm install -g toolrouter-mcp2Call tools directly from OpenClaw
toolrouter-mcp call web-search search --query "AI tools"
toolrouter-mcp toolsHow to audit image alt text coverage with OpenClaw
Once connected (see setup above), use the SEO Analysis tool:
- Ask: "Audit images on mysite.com for alt text coverage"
- Review the report
- Request alt text suggestions for missing images
- Apply and verify
Example prompt for OpenClaw
Try this with OpenClaw using the SEO Analysis tool
Check all images on mysite.com for missing alt text. Suggest descriptive alternatives.
Tips for OpenClaw
- Run on image-heavy pages first
- Ask for alt text that includes relevant keywords
- Combine with accessibility audit for comprehensive coverage
Frequently Asked Questions
How do I audit image alt text coverage with an AI assistant?
Check that all images have descriptive alt text for better SEO and accessibility compliance. Connect the SEO Analysis tool to Claude, ChatGPT, Microsoft Copilot, and OpenClaw through ToolRouter, then ask the assistant in plain language. For example: Ask Claude: "Audit all images on mysite.com/page for missing or poor alt text" Claude runs audit_images and lists every image with its alt text status
Which AI assistants can audit image alt text coverage?
Claude, ChatGPT, Microsoft Copilot, and OpenClaw can all audit image alt text coverage using the SEO Analysis tool through ToolRouter, with no API keys or coding required.
What does the SEO Analysis tool do?
Analyze, audit, and optimize websites for search engine performance with comprehensive SEO tools.
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