Lessons
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Introduction
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Search engine optimization
- Broken links
- Site map
- Micro-markup
- Robots.txt
- References
- Text
- Duplicates
- Basic
- Pictures
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Speed
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Minification
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Minification of CSS to reduce its volume
Minification of JavaScript files
Minification of inline CSS code
Minification of images without loss of quality
Minification of JavaScript files to reduce its volume
Unused CSS code
Data optimization:Image URLs
Animated image format MP4 and WEBM instead of GIF and WEBP
Unused JavaScript code
Using the WebP format in images
Too high-quality images without using compression
Suitable video bitrate
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Reducing requests
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An overabundance of small pictures
Grouping CSS files
Grouping JavaScript files
An overabundance of font files
Availability of end-to-end CSS, JS files
The presence of a monochrome font
Uploading duplicate files
Using JavaScript facades
Redirecting JavaScript code
Adding lazy loading
Redirect from/to www version
- Fonts
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Loading time
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Acceptable size of the HTML code of the page
HTML code generation time
The total volume of all images on the page
Total loading time
Total page load time.
Display time of the first graphic
Optimal time to download files from the server
Time to download files from the server under load
Blocking files
- Server Settings
- Pictures
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The first content
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The sequence of connecting JavaScript files
Font display mode
Setting up a pre-connection
Removing lazy loading
Long JavaScript code execution time
File upload delayed or on demand
The server is located in the same country where the users of the site live
Requests to another country that cause page loading to be blocked
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Minification
- Mobility
- Bugs
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Convenience
- Social networks
- Web Application Manifest
- Favicons
- Basic
- Text readability
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Security
- Encrypted connection
- Exploits
- Vulnerabilities
Headings H1-H6
The H1-H6 tags are used to specify page headings and subheadings. It is extremely important to use them so that it will be easier for search engine robots to identify the title. In addition, the modes of reading and audio playback of browser texts are guided by these tags.
Here is a list of rules to follow:
- Use the H1-H6 headers only to structure the page content. Do not use them in the header, basement, navigation, just in the interface. The task of headings is to divide the text into logical parts. It is inappropriate to use the H1-H6 tags to highlight the headers of pop-up windows, functional blocks (for example, the name of a product filter group), and interface elements (for example, form headers). This way you will only complicate the analysis of your page by search engine robots.
- The H1 header is mandatory, must be the only one, follow before all other headers. Also, it should be different from the title page due to the fact that they have different tasks. The page title is often used as the snippet title in search engine results. Therefore, his task is to motivate a person to click and go to the site. The H1 header is the first thing a person reads when entering the page. His task is to captivate the visitor so that he stays on the page.
- There should not be much text before the H1 header. This is almost always the first text found on the page, with the exception of the site header, navigation, and sidebars. Users, having opened the link, are looking for the main title of the page in order to understand if they are in the right place. If you place a large amount of text in front of the title, you will confuse the user with this.
- All H1-H6 headings should contain only text without pictures, links and other things. The text should be informative, not too long (up to 70 characters), start with a capital letter and not end with a dot.
- Observe the hierarchy of headings. H2 should be followed by the next heading H3, not H4 or H6.
- The h1 header must be at least 10 characters long. It contains the USP of the page, and in one word it is never described.
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