Congratulations! Your webpage is using a title tag

Congratulations! Your webpage is using a meta description tag

There is likely no optimal keyword density (search engine algorithms have evolved beyond keyword density metrics as a significant ranking factor). It can be useful, however, to note which keywords appear most often on your page and if they reflect the intended topic of your page. More importantly, the keywords on your page should appear within natural sounding and grammatically correct copy.

Your most common keywords are not appearing in one or more of the meta-tags above. Your primary keywords should appear in your meta-tags to help identify the topic of your webpage to search engines.

Congratulations! Your webpage contains headings tags.

This website is using a robots.txt file.

This website has a sitemap file.

All of your webpage's "img" tags have the required "alt" attribute.

All images in this page are properly sized for different users' viewports.

All image display dimensions match the natural aspect ratio.

Congratulations! Your page does not use HTML deprecated tags.

Congratulations! Your webpage is using Google Analytics.

Congratulations! There are no severe JavaScript errors on your webpage.

This webpage has some warnings caught by the Chrome DevTools Console!

Congratulations! The size of your webpage's HTML is 17.12 Kb and is under the average webpage's HTML size of 33 Kb. Faster loading websites result in a better user experience, higher conversion rates, and generally better search engine rankings.

Congratulations! Your webpage is successfully compressed using br compression on your code. Your HTML is compressed from 80.06 Kb to 17.12 Kb (79% size savings). This helps ensure a faster loading webpage and improved user experience.

Your website loading time is around 6.01 seconds and is over the average loading speed which is 5 seconds.

Your page uses more than 20 http requests, which can slow down page loading and negatively impact user experience.

Your webpage is serving all images, javascript and css resources from CDNs.

Your webpage is not using uncached images from your domain.

Congratulations! Your website is using cache headers for all JavaScript resources.

Congratulations! Your website is using cache headers for all CSS resources.

Congratulations! Your website's JavaScript files are minified!

Some of your webpage's CSS resources are not minified.

Congratulations! Your URL doesn't have any redirects (which could potentially cause site indexation issues and site loading delays).

Your website is successfully using HTTPS, a secure communication protocol over the Internet.

Congratulations, this webpage does not use mixed content - both the initial HTML and all other resources are loaded over HTTPS.

This webpage is using the HTTP/2 protocol.

Congratulations! Your webpage does not include email addresses in plaintext.

This webpage is using a viewport meta tag.

Congratulations, your website uses media query technique, which is the base for responsive design functionalities.

Your webpage doesn't take the advantages of HTML Microdata specifications in order to markup structured data. View Google's guide for getting started with microdata.

Your website is not using a custom 404 error page. Default 404 error pages result in a poor experience - it can mislead users into thinking an entire site is down or broken, greatly increases the chance they leave your site entirely, and looks unprofessional. By creating a custom 404 error page, you can improve your website's user experience by letting users know that only a specific page is missing/broken (and not your entire site), providing them helpful links, the opportunity to report bugs, and potentially track the source of broken links in your site.

Your webpage does not use the noindex meta tag. This means that your webpage will be read and indexed by search engines.

Your webpage is using the canonical link tag. This tag specifies that the URL: https://khuyendung.net is preferred to be used in search results. Please ensure that this specification is correct, as canonical tags are often hard-coded and may not always reflect the latest changes in a site's URL structure.

Your webpage is using the nofollow meta tag. You are advised to use this tag carefully since search engines will not crawl all links from your webpage.

Your robots.txt file disallow the search engines access to some parts of your website. You are advised to check carefully if the access to these resources or pages must be blocked.

Congratulations, this webpage is not using a meta refresh tag.

Your DNS server is not using an SPF record. SPF (Sender Policy Framework) allows administrators to specify which hosts are allowed to send mail from a given domain by creating a specific SPF record or TXT record in the Domain Name System (DNS). You can find more information about SPF records here.