41.7 sec in total
364 ms
40.7 sec
622 ms
Welcome to oncologylearningcenter.com homepage info - get ready to check Oncologylearningcenter best content right away, or after learning these important things about oncologylearningcenter.com
广州市自力色谱科仪有限公司(www.oncologylearningcenter.com)是专业的Waters色谱耗材,PE色谱耗材,ABsciex耗材,NRC试剂供应商,专门经营进口色谱产品和化学试剂,欢迎来电咨询
Visit oncologylearningcenter.comWe analyzed Oncologylearningcenter.com page load time and found that the first response time was 364 ms and then it took 41.4 sec to load all DOM resources and completely render a web page. This is an excellent result, as only a small number of websites can load faster.
oncologylearningcenter.com performance score
name
value
score
weighting
Value5.4 s
7/100
10%
Value11.9 s
0/100
25%
Value7.4 s
27/100
10%
Value0 ms
100/100
30%
Value0.004
100/100
15%
Value5.4 s
72/100
10%
364 ms
546 ms
482 ms
506 ms
1326 ms
Our browser made a total of 75 requests to load all elements on the main page. We found that 37% of them (28 requests) were addressed to the original Oncologylearningcenter.com, 11% (8 requests) were made to Img69.chem17.com and 8% (6 requests) were made to Img80.chem17.com. The less responsive or slowest element that took the longest time to load (12.2 sec) belongs to the original domain Oncologylearningcenter.com.
Page size can be reduced by 283.3 kB (15%)
1.9 MB
1.6 MB
In fact, the total size of Oncologylearningcenter.com main page is 1.9 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 39.2 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 39.2 kB or 80% of the original size.
Potential reduce by 150.0 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. Oncologylearningcenter images are well optimized though.
Potential reduce by 91.5 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 91.5 kB or 81% of the original size.
Potential reduce by 2.5 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. Oncologylearningcenter.com needs all CSS files to be minified and compressed as it can save up to 2.5 kB or 12% of the original size.
We found no issues to fix!
51
51
The browser has sent 51 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Oncologylearningcenter. According to our analytics all requests are already optimized.
oncologylearningcenter.com
364 ms
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546 ms
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oncologylearningcenter.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
Best practices
These items highlight common accessibility best practices.
Impact
Issue
[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.
oncologylearningcenter.com best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Ensure CSP is effective against XSS attacks
User Experience
Impact
Issue
Displays images with incorrect aspect ratio
General
Impact
Issue
Issues were logged in the Issues panel in Chrome Devtools
oncologylearningcenter.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
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 doesn't use legible font sizes
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ZH
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N/A
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Oncologylearningcenter.com can be misinterpreted by Google and other search engines. Our service has detected that Chinese 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 Oncologylearningcenter.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.
oncologylearningcenter.com
Open Graph description is not detected on the main page of Oncologylearningcenter. 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: