2.2 sec in total
503 ms
1.7 sec
0 ms
Visit tetsudo.com now to see the best up-to-date Tetsudo content for Japan and also check out these interesting facts you probably never knew about tetsudo.com
鉄道ファンのための“みんなで作る”鉄道情報サイト。鉄道に関するイベント情報、未来ニュース、車両トピックスを掲載。インターネット上の公式リリース、ブログ、動画、つぶやきなどを集めたリンク集や、参加型ゲーム「駅つなゲー」も提供。
Visit tetsudo.comWe analyzed Tetsudo.com page load time and found that the first response time was 503 ms and then it took 1.7 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 35% of websites can load faster.
tetsudo.com performance score
name
value
score
weighting
Value5.6 s
5/100
10%
Value21.1 s
0/100
25%
Value31.8 s
0/100
10%
Value49,620 ms
0/100
30%
Value0.011
100/100
15%
Value74.1 s
0/100
10%
503 ms
733 ms
659 ms
498 ms
52 ms
Our browser made a total of 9 requests to load all elements on the main page. We found that 11% of them (1 request) were addressed to the original Tetsudo.com, 56% (5 requests) were made to M.tetsudo.com and 22% (2 requests) were made to Code.jquery.com. The less responsive or slowest element that took the longest time to load (733 ms) relates to the external source M.tetsudo.com.
Page size can be reduced by 227.5 kB (67%)
340.8 kB
113.2 kB
In fact, the total size of Tetsudo.com main page is 340.8 kB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 15% of websites need less resources to load. CSS take 248.9 kB which makes up the majority of the site volume.
Potential reduce by 304 B
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 304 B or 40% of the original size.
Potential reduce by 22 B
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. Tetsudo images are well optimized though.
Potential reduce by 8.1 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 8.1 kB or 70% of the original size.
Potential reduce by 219.1 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. Tetsudo.com needs all CSS files to be minified and compressed as it can save up to 219.1 kB or 88% of the original size.
Number of requests can be reduced by 4 (57%)
7
3
The browser has sent 7 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Tetsudo. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 5 to 1 for JavaScripts and as a result speed up the page load time.
tetsudo.com
503 ms
m.tetsudo.com
733 ms
jquery.mobile-1.4.3.custom.min.css
659 ms
style.css
498 ms
jquery-2.1.4.min.js
52 ms
custom-scripting.js
344 ms
jquery.mobile-1.4.5.min.js
50 ms
jquery.cookie.min.js
50 ms
common.js
343 ms
tetsudo.com accessibility score
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
Buttons do not have an accessible name
Form elements do not have associated labels
Links do not have a discernible name
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
Heading elements are not in a sequentially-descending order
tetsudo.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
General
Impact
Issue
Detected JavaScript libraries
Browser errors were logged to the console
Page has valid source maps
tetsudo.com SEO score
Mobile Friendly
Make sure your pages are mobile friendly so users don’t have to pinch or zoom in order to read the content pages. [Learn more](https://developers.google.com/search/mobile-sites/).
Impact
Issue
Document uses legible font sizes
Tap targets are not sized appropriately
JA
JA
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Tetsudo.com can be misinterpreted by Google and other search engines. Our service has detected that Japanese is used on the page, and it matches the claimed language. Our system also found out that Tetsudo.com 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.
tetsudo.com
Open Graph description is not detected on the main page of Tetsudo. 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: