- From: Philip Taylor <pjt47@cam.ac.uk>
- Date: Thu, 18 Oct 2007 10:04:36 +0100
- To: Ian Hickson <ian@hixie.ch>
- CC: Karl Dubost <karl@w3.org>, HTMLWG WG <public-html@w3.org>
Ian Hickson wrote: > According to this December 2005 study of a billion or so documents: > > http://code.google.com/webstats/2005-12/scripting.html > > ...roughly half of pages had <script> tags (I just checked the raw data > and it was about 65% of pages). > > A study that I did in September 2006 covering a larger set of documents (a > few billion) found about 75% of documents had <script> elements. In that > study, the average page had 5 or 6 <script> elements. About 34% of > <script> elements had src="" attributes. About 70% of pages had <script> > elements without src="" attributes. > > [...] > > Philip` might be able to corroborate these numbers. I encountered somewhat similar numbers, though it's strongly dependent on what web pages you look at: From a random sample of dmoz.org's list of pages, three months ago [1]: * 67% had at least one <script>. * Mean number of <script>s per page was 3.6. * 39% of <script>s had src="...". * Of the pages with at least one <script>, 68% had at least one <script src>. (Some of this data is probably affected quite strongly by a few sites - e.g. weather.com appears in dmoz.org frequently, and has 135 <script>s on a typical page, which will raise the mean significantly.) From the Alexa Top 500 list of front pages, also about three months ago: * 93% had at least one <script>. * Mean number of <script>s per page was 13. * 33% of <script>s had src="...". [1] http://canvex.lazyilluminati.com/survey/2007-07-17/analyse.cgi/index -- Philip Taylor pjt47@cam.ac.uk
Received on Thursday, 18 October 2007 14:58:21 UTC