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    • Favorite 2 January 2021
      bobjonkman favorited something by stigatle: Out enjoying a nice day with Marlyn and our kids. Love being outdoors:)
    • Favorite 26 December 2020
      bobjonkman favorited something by stigatle: Wish you all a great Christmas!
    • bobjonkman repeated a notice by steve 26 December 2020
      RT @steve Uncertainty Principle Podcast Episode 1: Isaac Newtons Pajamas Lots of people in history were born on this day. This reading of an article in the Washington Post remembers one of them, Isaac Newton, and his pandemic year. https://people.smu.edu/ssekula/2020/03/16/uncertainty-principle-podcast-episode-1-isaac-newtons-pajamas/
    • Favorite 26 December 2020
      bobjonkman favorited something by steve: Uncertainty Principle Podcast Episode 1: Isaac Newtons Pajamas Lots of people in history were born on this day. This reading of an article in the Washington Post remembers one of them, Isaac Newton, and his pandemic year. https://people.smu.edu/ssekula/2020/03/16/uncertainty-principle-podcast-episode-1-isaac-newtons-pajamas/
    • bobjonkman repeated a notice by rozzin 26 December 2020
      RT @rozzin Happy !gravmass, everyone!
    • Favorite 26 December 2020
      bobjonkman favorited something by rozzin: Happy !gravmass, everyone!
    • Favorite 24 December 2020
      bobjonkman favorited something by blacksam: Nothing puts me in the Christmas spirit like watching Ralphie slap the shit out of Scut Farkas. #chistmas
    • New note by bobjonkman 17 December 2020
      I was getting all enraged by Github removing from their site yet more software they don't agree with. It should be perfectly acceptable to have software that enhances privacy and gives users control over what's on their computers. If I want to use software that bans cookies, why should Github care? Cookie banners are perfectly […]
    • bobjonkman repeated a notice by geniusmusing 17 December 2020
      RT @geniusmusing No cookie for you The GitHub Blog https://github.blog/2020-12-17-no-cookie-for-you/ >Good news: we removed all cookie banners from GitHub! 🎉 > >No one likes cookie banners. But cookie banners are everywhere. So how did we pull this off? > >Well, EU law requires you to use cookie banners if your website contains cookies that are […]
    • New note by bobjonkman 6 December 2020
      That article (from 2018!) is just like reading a dystopian #SciFi novel, all newspeak and doublethink: "The chip also supports the Android Strongbox Keymaster module, including Trusted User Presence and Protected Confirmation" https://www.androidauthority.com/titan-m-security-chip-915888/

Invalid HTML considered harmful

Posted by Bob Jonkman on April 28th, 2009

Screenshop of HTML Dog Web SiteValid HTML is not just useful for browsers. One of the big benefits of having valid HTML is that search engines can properly index your site. If the HTML is invalid, then the search engines may index you incorrectly, or not at all. Google isn’t the only search engine out there, and you want to drive as much traffic to your site as possible.

There appears to be some contention whether valid HTML makes a difference to search engines or not. Some say it doesn’t; or that it depends on the search engine; others have evidence it matters a lot.

Even if you’re not coding by hand, I urge you to have a look at HTML Dog, a set of tutorials on creating valid HTML. When things don’t work as expected you can turn here for examples in XHTML.

Favicon - HTML Doghttp://htmldog.com/

If you’re going to be using an editor for your Web pages, pick an editor that creates proper HTML code. Abandon FrontPage. I suggest using KompoZer, which is based on the same rendering engine as Firefox (Gecko).

Favicon - Kompozer.nethttp://www.kompozer.net/

You should also be checking your pages in Opera, which is a browser that is even better for standards-compliance than FireFox. The Chief Technology Officer for Opera is the same guy that wrote the Cascading Style Sheets specification, so it has a good pedigree.

Favicon - Opera.comhttp://opera.com

If you’re using Firefox then be sure to check your pages with the HTML Validator addon:

Favicon - Skynet.behttp://users.skynet.be/mgueury/mozilla/

Screenshot - HTML ValidatorAnd when you think your site is done, check each page with the full-strength validator:

Favicon - W3C HTML Validatorhttp://validator.w3.org/

Favicon - CSS Validation Servicehttp://jigsaw.w3.org/css-validator/

<heavy sigh… />

–Bob.

 
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