6.1 sec in total
1.1 sec
4.8 sec
248 ms
Welcome to grandiver.com homepage info - get ready to check Gran Diver best content right away, or after learning these important things about grandiver.com
ロードバイクの総合サポート 初心者からのロードバイクレッスン、メンテナンス、イベント参加「ロードバイクの乗り方を教えてくれる所」をお探しの方、もっと速くなるためのトレーニング、長距離を楽に走るためのポジショニングなどロードバイクに関するあらゆるサポートをいたします!
Visit grandiver.comWe analyzed Grandiver.com page load time and found that the first response time was 1.1 sec and then it took 5 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster.
grandiver.com performance score
name
value
score
weighting
Value2.8 s
57/100
10%
Value2.8 s
83/100
25%
Value5.7 s
51/100
10%
Value1,390 ms
16/100
30%
Value0
100/100
15%
Value7.9 s
43/100
10%
1134 ms
191 ms
372 ms
383 ms
5 ms
Our browser made a total of 83 requests to load all elements on the main page. We found that 31% of them (26 requests) were addressed to the original Grandiver.com, 28% (23 requests) were made to Scontent.xx.fbcdn.net and 24% (20 requests) were made to Static.xx.fbcdn.net. The less responsive or slowest element that took the longest time to load (1.9 sec) belongs to the original domain Grandiver.com.
Page size can be reduced by 187.8 kB (11%)
1.8 MB
1.6 MB
In fact, the total size of Grandiver.com main page is 1.8 MB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 45% of websites need less resources to load. Images take 1.7 MB which makes up the majority of the site volume.
Potential reduce by 10.0 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 10.0 kB or 71% of the original size.
Potential reduce by 103.7 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. Gran Diver images are well optimized though.
Potential reduce by 71.7 kB
It’s better to minify JavaScript in order to improve website performance. The diagram shows the current total size of all JavaScript files against the prospective JavaScript size after its minification and compression. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 71.7 kB or 63% of the original size.
Potential reduce by 2.4 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. Grandiver.com needs all CSS files to be minified and compressed as it can save up to 2.4 kB or 68% of the original size.
Number of requests can be reduced by 26 (32%)
82
56
The browser has sent 82 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Gran Diver. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 20 to 1 for JavaScripts and from 8 to 1 for CSS and as a result speed up the page load time.
www.grandiver.com
1134 ms
reset.css
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top.css
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style.css
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jquery-1.9.1.min.js
5 ms
viewer.js
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no.css
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no.js
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geov2.js
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analytics.js
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grandiver.com accessibility score
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
Internationalization and localization
These are opportunities to improve the interpretation of your content by users in different locales.
Impact
Issue
<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.
Impact
Issue
Image elements do not have [alt] attributes
Links do not have a discernible name
grandiver.com best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Includes front-end JavaScript libraries with known security vulnerabilities
Ensure CSP is effective against XSS attacks
User Experience
Impact
Issue
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
Browser errors were logged to the console
grandiver.com SEO score
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Impact
Issue
Image elements do not have [alt] attributes
JA
N/A
SHIFT_JIS
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Grandiver.com 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 Grandiver.com main page’s claimed encoding is shift_jis. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.
grandiver.com
Open Graph description is not detected on the main page of Gran Diver. 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: