optgroup (# of 120 properties in global CSS property usage)

Used on 1.2% of scanned pages, or 2,354,088 unique URLs

This HTML usage data comes from a Bing-powered scan of 2,354,088 pages. This process detects correctly-formatted HTML tags for the browsers included in the scan. The latest data set is from February 8th, 2017. To learn more about this data, visit our FAQ page.

Contains data from:

Chrome
Microsoft Edge
Firefox
9 unique instances
Values
Chrome
Microsoft Edge
Firefox
label 1.2% 9,636 1.2% 7,554 1.1% 10,010
style 0.037% 306 0.036% 233 0.036% 313
class 0.026% 216 0.029% 188 0.026% 226
id 0.018% 148 0.019% 122 0.018% 153
disabled 0.006% 53 0.006% 37 0.006% 50
title 0.004% 35 0.004% 25 0.004% 34
value 0% 4 0.004% 29 0.001% 5
hidden 0% 1 N/A N/A
selected N/A 0% 2 N/A
Top URLs using optgroup
URLRank
naver.comIn the top 25
ebay.comIn the top 38
nicovideo.jpIn the top 71
ebay.co.ukIn the top 79
rakuten.co.jpIn the top 99
ebay.deIn the top 113
xnxx.comIn the top 133
jalan.netIn the top 236
rightmove.co.ukIn the top 270
ebay.com.auIn the top 350
search.ancestry.comIn the top 471
dailymail.co.ukIn the top 478
tesco.comIn the top 513
candidat.pole-emploi.frIn the top 564
nifty.comIn the top 595
ebay.itIn the top 614
boursorama.comIn the top 663
travel.rakuten.co.jpIn the top 671
asahi.comIn the top 728
dell.comIn the top 768
nissen.co.jpIn the top 793
nytimes.comIn the top 820
immobilienscout24.deIn the top 832
gov.ukIn the top 919

120 properties