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No 301 redirects are in place to redirect traffic to your preferred domain. Pages that load successfully both with and without www. are treated as duplicate content! Not all versions of your page point to the same URL.
ⓘ The results of our semantic analysis are shown below using the website's language.
They are the main concepts covered by polyfill.io.
Each concept has a confidence score. The higher it is, the more important the topic is relative to the page.
Polyfill Confidence: 87%
Web browser Confidence: 70%
✅ polyfill.io website speed is fast. Page speed is important for visitors and search engines.
Get insights to improve your page loading time.
This domain loads at the median speed of 0.5 seconds.
polyfill.io is faster than approximately 95 percent of the web. Your website page speed needs to be as fast as you can make it, without compromising the customer experience.
A good goal to achieve is a loading time of 2 seconds on desktop and mobile devices.
ⓘ This website is ranked #219.416 by Alexa.
This rank is traffic based. The lower the rank is, the better the domain is ranked.
|United States of America||#227.354|
|Iran (Islamic Republic of)||#69.624|
The Doctype is used to instruct web browsers about the document type being used, like for a page, what version of HTML it's written in.
Declaring a doctype helps web browsers to render content correctly, which will give you more consistent results when you are styling your website with CSS.
Mobile friendly pages make it easy for users to complete objectives and common tasks on mobile devices, such as smartphones and tablets. polyfill.io seems to use a design or template that is consistent across all devices, in other words it's web design is responsive.
This website seems to be optimized for Mobile Visitors.
There is no best color scheme to use, but keep in mind that the bold dominant and accent colors give the website personality and focal points, while the plain background color keeps your visitors' focus on your content or products.
A good text to HTML ratio is anywhere from 25 to 70%.
This percentage refers to the visible text ratio, as opposed to HTML elements, image tags and other non-visible information.
Great, we found headings on this page.
|Top level heading|
|2nd level heading|
|What is polyfill.io?|
|Why do ı need it?|
We found 0 images on this website.
Great, 0 ALT attributes are missing on your image tags.