Search engines see a domain and its subdomains as two different websites. This can cause them to see duplicate content, which can negatively affect your search rankings.

The different versions of ohman.vn (with and without www. ; http and https ; even with and without trailing slash) do not direct traffic to the same URL. A fix is crucial.

Use the rel="canonical" tag to tell search engines which is the definitive version of your page. Use a 301 redirect to divert traffic from any secondary domain.

Google has indicated site and page speed are part of the signals used by its algorithm to rank pages.

In addition, a slow page speed means that search engines can crawl fewer pages using their allocated crawl budget, and this could negatively affect your indexation.

Loading time is also important to user experience. Pages with a longer load time tend to have higher bounce rates and lower average time on page. Longer load times have also been shown to negatively affect conversions.

Check out the ways you can increase ohman.vn's page speed.

Alt text is the written copy that appears in place of an image on a web page if the image fails to load on a user's screen.

This text helps screen-reading tools describe images to visually impaired readers and allows search engines to better crawl and rank your website.

ohman.vn has 5 images with a missing alt attribute.