Web snippet allows you to add alt text to all images on your website, no matter how many there are. All you need to do is place a small JavaScript embed code on your site.
How it works
The embedded script automatically detects images without alt text on a page and assigns alt text to them.
- For each image, alt text is generated only once.
- On the first page view with a new image, the script triggers alt text generation.
- On all subsequent page views, the script simply retrieves the stored alt text and applies it instantly.
This means you no longer have to worry about when or where new images appear on your site. The script handles everything for you.
Reliability
All generated alt texts are cached in a CDN that guarantees high availability and fault tolerance. The CDN is independent of our infrastructure, ensuring your visitors always receive alt text, even during traffic spikes.
Performance impact
Web snippet is built with performance in mind, ensuring it does not negatively affect your website’s loading speed or user experience.
- Asynchronous loading
The JavaScript snippet is loaded asynchronously, meaning it never blocks the rendering of your page. Your content continues to load normally, while the script works in the background to handle images. - Minimal overhead
The script itself is lightweight, optimized for modern browsers, and designed to add negligible overhead to your site’s resources. It integrates seamlessly without interfering with existing scripts or styles. - Instant retrieval via CDN
Once an alt text has been generated for an image, it is cached in our global CDN. This ensures that on every subsequent page view, alt texts are delivered in milliseconds, even under high traffic conditions. - Scalable architecture
Whether your website has a few dozen images or millions of media assets, AltTextLab is ready for this. Traffic surges are handled by the CDN, preventing bottlenecks and ensuring consistent response times worldwide. - No negative SEO impact
Because alt text is applied dynamically and retrieved instantly, search engines still recognize and index the alt attributes as if they were part of the page from the start.
Privacy & security
Web snippet processes only your website’s public images to generate alt text. No personal or sensitive visitor data is collected. Data processing is limited strictly to the images themselves.
This ensures your site remains secure and privacy-friendly.
What’s next?
