Lessons
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Introduction
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SEO
- Broken links
- Site map
- Semantic 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 the embedded JavaScript code of the page
Minification of the embedded CSS code of the page
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, WEBM, SVG 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
- Loading time
- 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
No requests to another country that cause page loading to be blocked
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Minification
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Mobility
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Screen support
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Adapting the layout to a Full HD computer monitor
Adapting the layout for a horizontal tablet
Adapting the layout for a horizontal phone
Screenshots for the mini-report
How blocks break the page layout
Adapting the layout to an HD computer monitor
Adapting the layout for a vertical tablet
Adapting the layout for a vertical phone
- Comfort
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Screen support
- Bugs
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Convenience
- Social networks
- Web Application Manifest
- Favicons
- Basic
- Text readability
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Vulnerabilities
- Encrypted connection
- Exploits
- Vulnerabilities
Link format requirements
Link of the form https://example.com/qa/index.php/56565/./zaglavnye-bukvy-v-url is correct, but it is difficult to read and understand what it means. I don’t want to forward such a link in the messenger. Having received such a link in the message, the user is unlikely to read it because of the bulkiness. Therefore, it will not read the name of the site, which will reduce its recognition.
A link with a Cyrillic link is converted to a long and poorly remembered string.
It is also inconvenient to store such links in notes. They can occupy up to half of the phone screen and it is difficult to understand their purpose from their contents.
To make your links beautiful and easy to read, follow the following guidelines:
- Uppercase characters are missing. Different operating systems handle the case of file names differently. To avoid confusion, do not use uppercase.
- Double characters are missing: slash //, dash –, dots.., underscore __.
- There is no backslash .
- Non-ANCII characters: Cyrillic, emoji and other characters. They will be replaced with a poorly readable string of the form %D0%B0%D0%.
- A link of the form /path/index.php/56565/path/ containing an index file in the middle.
- There are no commands to change directories /./ and /../.
- There is no equal symbol in the path.
Links with the following errors will be ignored by search engines:
- The address is not localhost.
- The address is not IPv4 or IPv6.
- There is no port.
- There is no login and password.
- There are no space characters, line breaks, tabs and carriage translation.