toddhalfpenny

iFrame-less Reloaded plugin is a simple and SEO friendly way to embed non-PHP dynamic content directly onto a wordpress page.
Based on the IFrame-less plugin by Fiach Reid (https://profiles.wordpress.org/users/freebiesms/) but extended to allow multiple widgets per sidebar.
Original Desc taken from IFrame-less : Not everyone who uses wordpress knows PHP. Perhaps you are more familiar with ASP.NET or JSP,but you can not just put ASP.NET or JSP code in the middle of wordpress, especially if your server does not support it.
Using an IFrame is a possibility, but it has some SEO (Search Engine Optimization) downsides, since, search engines will view that content as part of another page, and give your blog no extra credit for this content.
This plugin allows you to specify a URL, which this plugin will fetch for you, and re-display on the page, as part of the page content. Giving you the SEO advantage that an IFrame looses.
Note, this plugin should only be used to import content which you own or have rights to display on your site

iFrame-less Reloaded

iFrame-less Reloaded plugin is a simple and SEO friendly way to embed non-PHP dynamic content directly onto a wordpress page.

patrickpelayo

A Responsive Iframe that will resize itself to its parent element.
<h4>Instructions</h4>
<h4>Install</h4>
The plugin manager is located on the administration page. From the administration page in the left side bar click Plugins. From the top of the page click add new.
Install the plugin thru the plugin manager, or upload it as a zip file into the plugin manager.
<h4>Use</h4>
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Apply responsive iframe 
Create a post like you normally would and then click the + icon displayed to Add block. Find Responsive iframes and click it. 
By default your current website will be displayed in the iframe.
</li>
<li>
Block Settings 
Site Address – The url address of the website you want to iframe 
Width – This represents the actual width you want to display from the iframed website. 
Height – This represents the actual height you want to display from the iframed website. 
Scrollbar – Displays a scroll bar if the height,and width are smaller than the iframe website. 
Border – Dislays a default border around the iframe element. 
Scale – This will change the max-width percentage of the iframe’s parent element, it will allow the element to be scaled by size. 
Additional CSS – Any additional CSS will be applied to the iframe’s parent element. Use this to provide some additional styling.
</li>
<li>
BreakPoints 
Available under advanced settings, and will let you specify the width of the site to display depending on the width of the device. 
Multiple breakpoints can be used. The lowest BreakPoint Width will take effect over any higher BreakPoint Widths when the screen device is below or at its BreakPoint Width. 
Example Breakpoint 1 250px, Breakpoint 2 350px. A device with a screen width of 250px will only trigger Breakpoint 1. ScreenWidth 251px, will only trigger BreakPoint 2. 
Name – The name you wish to give the breakpoint 
BreakPoint Width – At and below this width, this breakpoint is triggered. 
Site Width – This is the width of the website to display when the breakpoint is triggered
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</ul>

Responsive iframe

Lets you place Iframes into your posts that will resize dynamically to maintain the same apperance.

iFrame-less Reloaded vs Responsive iframe