A/B testing and personalization
Websites using SiteSpect
SiteSpect is an A/B testing and personalization platform that works as a proxy in front of the site. About 5 websites in the PageSourceSearch index contain the code that reveals it; the 3 highest-ranked are listed below.
How is SiteSpect detected?
SiteSpect injects its client-side core.js from the reserved /__ssobj/ path. The discovery keyword is the exact bytes PageSourceSearch looks for in every stored page and script:
/__ssobj/core.js Search the index for it
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 SiteSpect
Top 50 websites using SiteSpect
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 2026-09-30 15:54:40 UTC.
| # | Website | Rank | Found in | |
|---|---|---|---|---|
| 1 | sfawardswatch.com | 713,643 | html https://sfawardswatch.com/ | view source profile |
| 2 | immernurska.de | 912,199 | html https://www.immernurska.de/ | view source profile |
| 3 | alma-music.fr | 1,383,485 | html https://alma-music.fr/ | view source profile |
How it appears in the source
From sfawardswatch.com (html):
ct = document.createElement('script'); siteSpect.type = 'text/javascript'; siteSpect.src = '/__ssobj/core.js+ssdomvar.js+generic-adapter.js';siteSpect.async = true; siteSpect.id = 'siteSpectLibraries'
Questions about finding SiteSpect
- How does PageSourceSearch know a website uses SiteSpect?
- By the source itself: SiteSpect injects its client-side core.js from the reserved /__ssobj/ path. 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 SiteSpect?
- No. The page lists the 50 highest-ranked sites in the index whose source holds the keyword, out of about 5 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 SiteSpect 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 /__ssobj/core.js with wp-content/plugins/ lists the WordPress sites that use SiteSpect.