Websites Powered by Underscore.j
3 websites tracked using Underscore.j (JavaScript frameworks)
Usage trend
2
4
6
8
Jul 2018
Feb 2019
May 2019
Feb 2021
Apr 2021
Domains observed using Underscore.j in each month's HTTP Archive crawl,
Jul 2018 to Apr 2021 ยท peak 8 in Feb 2021. The tracked total above also
counts sites not re-crawled recently.
Detections for Underscore.j end in Apr 2021. The fingerprint catalog behind our crawls no longer carries this technology as its own entry, which usually means it was retired or split into more specific technologies, so later crawls cannot record it. Counts on this page reflect the last data available.
Core Web Vitals
LCP 1.8 s
INP 75 ms
CLS 0
TTFB 1200 ms
Median site among 1 Underscore.j sites with Chrome UX data, p75 values, Aug 2026.
Top countries
Chile
1
Sites using Underscore.j by audience country, Chrome UX Report.
Websites using Underscore.j
No sites to list from recent crawls, detection for this technology ended in Apr 2021.
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