Using Alt Text for SEO
Alt text (alternative text) is a crucial component of image optimization for SEO. It not only enhances accessibility for visually impaired users but also helps search engines understand what an image depicts, thereby contributing to better search rankings. This section covers the best practices for writing and using alt text effectively.
Importance of Alt Text
Accessibility:
Alt text ensures that visually impaired users can understand the content of images through screen readers, thereby making your website more accessible.
Search Engine Optimization (SEO):
Search engines use alt text to understand the content of images, which can help improve your rankings in image search results and boost the SEO of the entire page.
Page Load Speed:
Alt text can be displayed if an image fails to load, providing context and maintaining a good user experience.
Best Practices for Writing Effective Alt Text
Be Descriptive and Specific:
Provide a clear and specific description of the image. Describe what is happening within the image and its context.
Example:
"Modern kitchen with stainless steel appliances and granite countertops."
Incorporate Keywords Naturally:
Include relevant keywords, but ensure they fit naturally within the description. Avoid keyword stuffing, which can harm your SEO.
Example:
"Luxury condo for sale in Miami with ocean view."
Keep It Concise:
While alt text should be descriptive, it should also be concise. Aim for 125 characters or less.
Example:
"Spacious master bedroom in Victorian home in San Francisco."
Avoid Redundant Phrases:
Do not use phrases like "image of" or "picture of." The search engine already knows it’s an image. Instead, jump directly into the description.
Example:
Instead of "Image of a 3-bedroom house for sale," use "3-bedroom house for sale with large garden."
Describe the Function if Contextual:
If the image serves a particular function, describe its purpose. For example, if it’s an image of a button, mention its function.
Example:
"Submit button in a contact form."
Use Alt Text for All Images:
Ensure every image on your website has alt text, including decorative images, logos, and buttons. If an image is purely decorative, set the alt attribute to an empty string (alt="") to ignore it by screen readers.
Example:
<img src="decorative-border.jpg" alt="">
Steps for Adding Alt Text to Your Images
Identify Images to Optimize:
Review all the images on your website. Make a list of those that need optimized alt text, prioritizing those on high-traffic pages.
Write Descriptive Alt Text:
For each image, write alt text that is descriptive, specific, and incorporates relevant keywords naturally.
Example:
Image: Photo of a modern living room with a large window overlooking a cityscape.
Alt Text: "Modern living room with floor-to-ceiling windows offering a cityscape view."
Implement Alt Text in HTML:
Add the written alt text to the HTML code of your images.
Example:
<img src="modern-living-room-cityscape.jpg" alt="Modern living room with floor-to-ceiling windows offering a cityscape view" width="800" height="600">
Review for Readability:
Ensure that the alt text reads naturally and provides a clear description of the image. Avoid awkward phrasing or overly technical language.
Test for Accessibility:
Use screen readers to test how your alt text appears to visually impaired users. Ensure that it provides a meaningful experience.
Examples of Good and Bad Alt Text
Example 1: Residential Property
Image: A photo of a charming 2-story house with a white picket fence and a blooming garden.
Good Alt Text: "Charming 2-story house with a white picket fence and a blooming garden."
Bad Alt Text: "House for sale."
Example 2: Interior Design
Image: A modern kitchen with stainless steel appliances, marble countertops, and a large island.
Good Alt Text: "Modern kitchen with stainless steel appliances, marble countertops, and a large island."
Bad Alt Text: "Modern kitchen appliances."
Example 3: Location Specific
Image: A beautiful beachfront condo in Miami during sunset.
Good Alt Text: "Beachfront condo in Miami with a stunning sunset view."
Bad Alt Text: "Miami condo sunset."
Tools for Checking and Adding Alt Text
CMS Platforms:
Most content management systems (like WordPress, Squarespace, and Wix) provide fields for adding alt text to images.
Tip: Always fill out these fields when uploading new images.
Google Lighthouse:
Use the Google Lighthouse tool to audit your website’s accessibility and identify images missing alt text.
Tip: Run regular audits to ensure all new content meets accessibility standards.
Browser Extensions:
Use browser extensions such as WAVE (Web Accessibility Evaluation Tool) to review and analyze your website’s images for alt text completeness and quality.
Tip: Conduct a thorough review after significant content updates.
Actionable Insight: Review all images on a key page of your website and ensure they have descriptive, keyword-rich alt text. Use tools like Google Lighthouse and WAVE to audit your alt text and make necessary adjustments. Implement these best practices across your site and monitor the impact on your search engine rankings and user engagement using tools like Google Analytics and Google Search Console. Make alt text optimization a regular part of your content update process. If you use SEOrocket.ai, all images and alt text will already be optimized when you create content, saving you time and effort.
Last updated