SEO

Alt Text

Alt text is descriptive text for images that improves accessibility and helps search engines understand images.

Quick Answer

  • What it is: Alt text is descriptive text for images that improves accessibility and helps search engines understand images.
  • Why it matters: Clarifies the levers that improve visibility and rankings for high-intent queries.
  • How to check or improve: Audit on-page signals, internal links, and topical relevance.

When you'd use this

Clarifies the levers that improve visibility and rankings for high-intent queries.

Example scenario

Hypothetical scenario (not a real company)

A team might use Alt Text when Audit on-page signals, internal links, and topical relevance.

Common mistakes

  • Confusing Alt Text with Search Intent: The underlying goal or purpose behind a user's search query, categorized as informational, navigational, commercial, or transactional.
  • Confusing Alt Text with SERP: Search Engine Results Page - the page displayed by search engines in response to a query. Learn about SERP features, analysis techniques, and how to optimize for modern search results including AI Overviews.

How to measure or implement

  • Audit on-page signals, internal links, and topical relevance

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Updated Jan 17, 2026·3 min read

Why this matters

Improving alt text makes it easier to align intent, relevance, and technical signals. When alt text is handled correctly, it reduces friction for crawlers and users. Strong alt text decisions compound because they reduce ambiguity and improve consistency across templates.

Common reasons issues show up

  • Alt Text is implemented differently across sections of the site
  • Signals related to alt text conflict with canonical or index directives
  • Updates are made without validating alt text in Search Console

Common mistakes

  • Failing to validate alt text after site changes
  • Over-optimizing alt text without checking intent alignment
  • Using alt text signals that conflict with canonical URLs
  • Leaving outdated alt text rules in production
  • Relying on assumptions instead of verifying alt text behavior in tools

How to check or improve Alt Text (quick checklist)

  1. Document how alt text should be implemented for future updates.
  2. Review your current alt text setup for accuracy and consistency.
  3. Validate alt text in your most important templates and pages.
  4. Monitor changes in Search Console or analytics after updates.

Examples

Example 1: A site fixes alt text issues and sees more stable indexing within a few weeks. Example 2: A team audits alt text and uncovers conflicts that were suppressing rankings.

FAQs

Is alt text different for large sites?

Large sites need stricter governance because small inconsistencies scale quickly. This keeps alt text aligned with intent and technical signals.

What is Alt Text?

Alt Text focuses on aligning signals so search engines and users interpret your page correctly. This keeps alt text aligned with intent and technical signals.

How do I validate alt text?

Use Search Console, site crawlers, and template checks to confirm alt text is implemented correctly. This keeps alt text aligned with intent and technical signals.

Can alt text affect rankings?

Yes. Alt Text influences how search engines interpret relevance and quality signals. This keeps alt text aligned with intent and technical signals.

  • Guide: /resources/guides/keyword-research-ai-search
  • Template: /templates/definitive-guide
  • Use case: /use-cases/marketing-agencies
  • Glossary:
    • /glossary/search-intent
    • /glossary/serp

Alt Text improvements compound over time because they clarify signals and reduce ambiguity for crawlers and users. Use the checklist to prioritize fixes and document changes so the team can maintain consistency across releases.

Alt Text improvements compound when teams document standards and validate changes consistently.

Alt Text improvements compound when teams document standards and validate changes consistently.

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