HTML Compression/GZIP Test
This test is the best way to check if your page uses HTML Compression. The compression function with similar strings that live in the text file and replacing the strings tool will save space in your HTML. This style of compression works better for web usage because HTML and CSS files have a lot of repeated strings normally. For example, white spaces, tags, and style definitions.
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Page Cache Test (Server Side Caching)
See if your page is serving cached pages. The Page Cache Test is a tool for a short-term storage of web documents like HTML pages and images to make less bandwidth usage, server load, and perceived lag. A web cache keeps copies of your documents from passing through it. Consecutive requests may be chosen from the cache if action is suitable.
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Flash Test
A Flash Test checks if your page uses Flash. Flash is an out of date older technology that was once used to deliver fat multimedia information. It has developed over time into newer faster technologies and requirements based on HTML5 making it not user-friendly. Flash had proved not to work on mobile devices and also is not search engines friendly.
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Site Loading Speed Test
Be able to test your website using real browsers to know load time speed. Having a fast loading page is critical in all search engines rankings for creating higher traffic, increasing sales and for better conversions.
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Minification
Minification happens by removing all unnecessary characters from source code without changing the way it functions. Useless characters contain whitespace characters, new line characters, comments. Sometimes blocking delimiters makes it possible to add readability to the code. Removal of characters and compacting files can save heaps of bytes of data and speed up downloading, parsing and execution time.
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Canonicalization Test
Canonicalization Test is a test for your potential issues with canonicalization problems. The canonicalization way describes how a site can use similar URLs for the same page.
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Directory Browsing Test
Your Directory Browsing Test allows you to check if your server can do it. Visitors are not able to browse your directory unless there is an available index.html file. Disabling enables protection of your data from the public and makes it an excellent source of protection.
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IP Canonicalization Test
You could have subdomains like www. and each of these URLs spreads out the value of inbound links to the homepage. Thus, if the homepage has multiple links to these various URLs, the major search engines only give them credit separately, not in a combined manner.
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Safe Browsing Test
Safe Browsing Test results show if your website listed with malware or phishing activity. If you exposed to either of these, it could pose a serious threat and risk to online users creating an overall lower ranking. The test works by checking in the most relevant online databases.
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Structured Data Test
This test checks if your web page takes the advantages of HTML Structured Data specifications. By using Structured Data in your web pages, you can help search engines to understand your content.
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Meta Tags Test
Check meta-tags within your page. Determine if meta title tags, meta description tags are in place and offering the proper information about your page to the major search engines.
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H1-H6 Test
Check the content of any H1-H6 tags within your web page. Header tags are the most important On-page SEO factors because they are used to communicate with search engines for what your page is about.
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Robots.txt Test
Check if your website uses a proper robots.txt file. If there are URLs you do not want to be indexed by search engines, you can use the "robots.txt" file to define where the robots should not go.
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Sitemap Test
Sitemap Test uses sitemap files such as sitemap.xml, sitemap.xml.gz or sitemapindex.xml to check a website. It is a way for webmasters to tell search engines about available sites for crawling. A sitemap is an XML file that shows URLs of a site with extra metadata about them.
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Favicon Test
Favicons are small icons that show up on your browser's URL navigation bar. For example, Twitter, Google use favicons. With Favicon Test results you make sure favicon works correctly on your site.
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