3.2 sec in total
Welcome to zero.jp homepage info - get ready to check ZERO best content for Japan right away, or after learning these important things about zero.jp
We analyzed Zero.jp page load time and found that the first response time was 763 ms and then it took 2.4 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 40% of websites can load faster.
zero.jp performance score
Our browser made a total of 51 requests to load all elements on the main page. We found that 69% of them (35 requests) were addressed to the original Zero.jp, 20% (10 requests) were made to Cache.img.gmo.jp and 10% (5 requests) were made to Cv01.con-v.jp. The less responsive or slowest element that took the longest time to load (945 ms) belongs to the original domain Zero.jp.
Page size can be reduced by 335.9 kB (66%)
Potential reduce by 58.9 kB
HTML content can be minified and compressed by a website’s server. The most efficient way is to compress content using GZIP which reduces data amount travelling through the network between server and browser. HTML code on this page is well minified. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 58.9 kB or 87% of the original size.
Potential reduce by 3.0 kB
Image size optimization can help to speed up a website loading time. The chart above shows the difference between the size before and after optimization. ZERO images are well optimized though.
Potential reduce by 247.5 kB
Potential reduce by 26.5 kB
CSS files minification is very important to reduce a web page rendering time. The faster CSS files can load, the earlier a page can be rendered. Zero.jp needs all CSS files to be minified and compressed as it can save up to 26.5 kB or 80% of the original size.
Number of requests can be reduced by 24 (48%)
zero.jp accessibility score
These are opportunities to improve the legibility of your content.
Background and foreground colors do not have a sufficient contrast ratio.
These are opportunities to improve keyboard navigation in your application.
Heading elements are not in a sequentially-descending order
Internationalization and localization
These are opportunities to improve the interpretation of your content by users in different locales.
<html> element does not have a [lang] attribute
Names and labels
These are opportunities to improve the semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.
Form elements do not have associated labels
zero.jp best practices score
Trust and Safety
Does not use HTTPS
Ensure CSP is effective against XSS attacks
Serves images with low resolution
zero.jp SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Links are not crawlable
robots.txt is not valid
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Zero.jp can be misinterpreted by Google and other search engines. Our service has detected that Japanese is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Zero.jp main page’s claimed encoding is utf-8. Use of this encoding format is the best practice as the main page visitors from all over the world won’t have any issues with symbol transcription.
Open Graph description is not detected on the main page of ZERO. Lack of Open Graph description can be counter-productive for their social media presence, as such a description allows converting a website homepage (or other pages) into good-looking, rich and well-structured posts, when it is being shared on Facebook and other social media. For example, adding the following code snippet into HTML <head> tag will help to represent this web page correctly in social networks: