img-comparison-slider is a web component for before-and-after image comparisons.
About 14,364 websites in the PageSourceSearch index contain the code that reveals it; the 41 highest-ranked are listed below.
How is img-comparison-slider detected?
The comparison is written in the page as an img-comparison-slider custom element. The discovery keyword is the exact bytes PageSourceSearch looks for in every stored page and script:
A literal is matched byte for byte, case-sensitively. Combine it with another keyword, a domain, a kind or a date filter on the search page to narrow the list. About img-comparison-slider
Top 50 websites using img-comparison-slider
Ranked by the domain's position in the crawl's ranked list (Common Crawl harmonic centrality), highest first. view source opens the stored page or script with the match highlighted. Computed 2026-10-11 15:14:15 UTC; the list stopped short of 50 because the search's budget ran out.
.add(s),this.querySelectorAll('[slot="before"], [slot="after"]').length>0&&console.warn(`<img-comparison-slider>: slot names "before" and "after" are deprecated and soon won't be supported. Please use
How does PageSourceSearch know a website uses img-comparison-slider?
By the source itself: The comparison is written in the page as an img-comparison-slider custom element. PageSourceSearch stores the raw HTML and first-party JavaScript of each crawled site and matches the keyword byte for byte, so every listed site's stored source contains it.
Is this a complete list of websites using img-comparison-slider?
No. The page lists the 50 highest-ranked sites in the index whose source holds the keyword, out of about 14,364 websites that do; the count is the index's estimate at the time the list was computed. Run the keyword as a search to page through all of them, or add a kind or date filter.
How do I find websites that use img-comparison-slider together with another technology?
Search for both keywords at once: several terms separated by spaces must all be found on the same site, or with the Same page toggle in the same page. For example <img-comparison-slider with wp-content/plugins/ lists the WordPress sites that use img-comparison-slider.