html5 is good.!!

owen100 — Tue, 25 Jun 2013 10:18:40 +0000

html5 is good.!!

HTML5 is be better now. I use

stivemcfly — Sat, 13 Apr 2013 01:45:15 +0000

HTML5 is be better now. I use HTML5 for design my website

HTML5 contains much better

tnhamanda — Mon, 01 Apr 2013 11:20:06 +0000

HTML5 contains much better support for media like video and audio tags.

I think html5 is best option,

pwhlicia — Mon, 25 Mar 2013 14:44:15 +0000

I think html5 is best option, which include awesome and easy tool.

I think HTML5 is the best to

annahussy — Mon, 29 Oct 2012 09:03:05 +0000

I think HTML5 is the best to use. It is new version of HTML and it has many of good and advance features that really good to use for creating web pages and website.

HTML5 is best it's a latest

MrThind — Thu, 04 Oct 2012 12:26:22 +0000

HTML5 is best it's a latest with good advance features.

html5 is good & creative...

helper27 — Thu, 27 Sep 2012 04:07:29 +0000

html5 is good & creative...

HTML 4.01 is good..!

mitch2012 — Sat, 18 Feb 2012 07:06:00 +0000

HTML 4.01 is good..!

I like HTML5 because it

johnBMitchell — Mon, 13 Feb 2012 13:25:08 +0000

I like HTML5 because it provides lots of benefits for SEO. Key benefits of HTML 5 for SEO are:
Web pages faster download times experienced, and Web pages are indexed and efficiently with a cleaner code search
HTML5 video more searchable and indexable for search engines
In HTML5, the video is a browser-based, and incredibly fast. For slow Internet connections, there is no buffering, because the file downloaded and played in HTML5
Offers great stability, because the painting is in the browser when compared to a plug-in included
Store large amounts of data without affecting the performance of a website
New form options enable enhanced functionality and design on mobile devices

I know from nothing about

webwiz — Sat, 04 Feb 2012 16:49:05 +0000

I know from nothing about SEO. Sorry.

As far as general use goes, you can use the new DOCTYPE safely with HTML 4.01 and XHTML 1.0 markup with no downsides. Personally, I'd avoid the new elements on a commercial site. While a simple JavaScript "shim" works great on geriatric browsers, an estimated 2% of visitors have scripting turned off. Search engines don't run JavaScript, but do recognize the new HTML5 elements.

On a personal site, where your visitors are more likely to be using a competent browser or have scripting on, you may well be able to leverage the many advantages of HTML5. YMMV - check your visitor stats.