Adding meta “viewport” for WordPress

Google recently changed their search algoritms to better recognize and weight “Mobile” support. This term is loosely defined in general, but to get your Google search “juice” you simply need to add a “viewport” meta tag. Unfortunately, unless you have the knowledge and want to edit your WordPress theme manually, there’s not an obvious way to add this.

Adding the “Definitely Allow Mobile Zooming” plugin makes this painless in WordPress without any additional configuration.

HTML code required (in <head>):

<meta name="viewport" content="width=device-width" />

PHP required (for manual addition):

function set_viewport() {
<meta name="viewport" content="width=device-width" />
add_action('wp_head', 'set_viewport');


meta viewport minimal-ui… a good idea in it’s time, just not useable…

Apple added this capability for fullscreen browser applications in Safari for IOS 7.1, unfortunately, they removed it in IOS 8.0

<meta name="viewport" content="width=device-width, minimal-ui" />


“msapplication-config” and browserconfig.xml

Windows-8/MSIE-11 introduced Tiles, as such server administrators may have started seeing HTTP 404 errors in their server logs as it attempts to look for a “browserconfig.xml” file at the root of a website domain. If you are inclined to use this file, you should definitely look into the documentation for how to best make use of it. Others may just wish to prevent the error from making “noise” in their log files.

To remove the error, add the following to your pages; alternately you COULD define the URL of your file as the ‘content’ attribute:

<meta name="msapplication-config" content="none" />

You can alternately place an empty /browserconfig.xml on your web server for each domain.

An common example of how to use this file is below:

<?xml version="1.0" encoding="utf-8"?>
<square70x70logo src="/mstile-70x70.png"/>
<square150x150logo src="/mstile-150x150.png"/>
<wide310x150logo src="/mstile-310x150.png"/>
<square310x310logo src="/mstile-310x310.png"/>
<TileImage src="/mstile-150x150.png" />


Preventing Pinterest “pinning” of your content

While many people are happy when images from their websites get “pinned” on Pinterest, there are many times that you might not be so pleased. You may have a need to prevent images from being shared for copyright or similar reasons, or simply not want the extra website traffic.

Thankfully, you can stop this with the addition of a simple HTML META tag. Also, if you already use CloudFlare, they can add it for you at runtime!

<meta name="pinterest" content="nopin" />


Preventing Blackberry browser from messing up your UI

I’ve previously given steps to prevent phone numbers (and other elements) from being automatically reformatted by Skype Toolbar and IOS Safari, there is still a small segment of the user population that uses Blackberry devices that can similarly benefit from a little code.

The following stops auto detection and formatting of phone and email addresses on devices with the BlackBerry Browser.


<meta http-equiv="x-rim-auto-match" content="none" />


<meta name="x-rim-auto-match" http-equiv="x-rim-auto-match" forua="true" content="none" />


Skype toolbar meta tag… preventing Skype from messing up your UI

I’ve previously documented the method used to prevent IOS devices from formatting numbers.

Users on other platforms, notably Windows, have Skype installed and it too can cause some headaches with your UI as it inserts elements to decorate phone numbers.

For users that have the Skype Toolbar enabled, the following META tag will prevent it from doing a lot of damage!



HTML cleartype meta tag?

This tag allows for activation of ClearType in Mobile IE for smoothing fonts.

<!--[if IEMobile]><meta http-equiv="cleartype" content="on" /><![endif]-->

NOTE: Future use of this approach is questionable, as MSIE10 dropped support of conditional comments, and HTML5 validators (in general) do not “like” the http-equiv values as they are not standardized


Preventing IOS/Safari from formatting numbers

There are many cases where your application may display numbers that “resemble” phone numbers, but are not, unfortunately Safari’s default behavior is for it to be “helpful” and format them into clickable/callable links for the user of Apple IOS devices.

Adding the following META tag can prevent that default behavior:

<meta name="format-detection" content="telephone=no" />

NOTE: I’ve seen some mention of using this method for ‘address=no’ and ’email=no’, but have not looked into or verified those implementation yet!


Revisit-After meta tag

Once in a while I’ve seen this tag in the HTML source of older websites, I too had implemented it at one time, but forgot the reason. Here’s what I’ve turned up, and as such have removed it universally.

This tag was at one time used by one small search engine in Vancouver Canada, it was never picked up by the larger search organizations and as such has very little relevance.

<meta name=”revisit-after” content=”7 days” />


Apple IOS 6 Smart App Banners

If you have made an investment in creating a device specific application in addition to a traditional web application, there is also a good chance that you want to drive your users (customers) to use the native application.

With the release of Apple IOS 6 in September 2012, this ability was made possible with the use of a simple HTML <meta> tag on your web page. You will need to replace the x’s with your app-id from the Apple Store.

<meta name="apple-itunes-app" content="app-id=xxxxxxxxxx" />