3 sec in total
146 ms
2.7 sec
172 ms
Visit dnp.chemnetbase.com now to see the best up-to-date Dnp CHEMnetBASE content for United States and also check out these interesting facts you probably never knew about dnp.chemnetbase.com
This chemical database is the most comprehensive resource of natural product chemical, physical and structural data information.
Visit dnp.chemnetbase.comWe analyzed Dnp.chemnetbase.com page load time and found that the first response time was 146 ms and then it took 2.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.
dnp.chemnetbase.com performance score
name
value
score
weighting
Value5.0 s
9/100
10%
Value24.2 s
0/100
25%
Value24.9 s
0/100
10%
Value36,940 ms
0/100
30%
Value0.074
95/100
15%
Value49.3 s
0/100
10%
146 ms
89 ms
279 ms
157 ms
316 ms
Our browser made a total of 43 requests to load all elements on the main page. We found that 95% of them (41 requests) were addressed to the original Dnp.chemnetbase.com, 5% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (747 ms) belongs to the original domain Dnp.chemnetbase.com.
Page size can be reduced by 264.5 kB (42%)
624.6 kB
360.1 kB
In fact, the total size of Dnp.chemnetbase.com main page is 624.6 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. 70% of websites need less resources to load. HTML takes 299.1 kB which makes up the majority of the site volume.
Potential reduce by 259.2 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 259.2 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. Obviously, Dnp CHEMnetBASE needs image optimization as it can save up to 3.0 kB or 38% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 244 B
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. This website has mostly compressed JavaScripts.
Potential reduce by 2.1 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. Dnp.chemnetbase.com has all CSS files already compressed.
Number of requests can be reduced by 25 (69%)
36
11
The browser has sent 36 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Dnp CHEMnetBASE. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 14 to 1 for JavaScripts and from 13 to 1 for CSS and as a result speed up the page load time.
ChemicalSearch.xhtml;jsessionid=139FBE10443B3D8D2181B498EF2B931D
146 ms
theme.css
89 ms
font-awesome.css
279 ms
components.css
157 ms
jquery.js
316 ms
jquery-plugins.js
266 ms
core.js
252 ms
components.js
275 ms
RES_NOT_FOUND
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fileupload.css
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fileupload.js
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idlemonitor.js
655 ms
font-icon-layout.css
638 ms
sentinel-layout.css
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core-layout.css
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graytheme.css
747 ms
layout-temp.js
677 ms
CNB.css
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github.css
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rainbow-custom.min.js
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promise-1.0.0.min.js
709 ms
marvinjslauncher.js
731 ms
example-edit-images.css
720 ms
email-decode.min.js
694 ms
cssscreen.css
715 ms
RES_NOT_FOUND
401 ms
analytics.js
384 ms
popupBlueArrow.png
314 ms
dot_clear.gif
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crcLogo.png
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tfLogo.png
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preloader.gif
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titilliumweb-regular-webfont.woff
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titilliumweb-regular-webfont.woff
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sentinel.woff
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fontawesome-webfont.woff
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blank.svg
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downarrow.svg
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editor.html
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editor.min.css
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gui.nocache.js
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invisible.js
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dnp.chemnetbase.com accessibility score
ARIA
These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.
Impact
Issue
[aria-*] attributes do not match their roles
[aria-hidden="true"] elements contain focusable descendents
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
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
<frame> or <iframe> elements do not have a title
Form elements do not have associated labels
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.
dnp.chemnetbase.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
Missing source maps for large first-party JavaScript
dnp.chemnetbase.com SEO score
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Impact
Issue
Links do not have descriptive text
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
EN
EN
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Dnp.chemnetbase.com can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it matches the claimed language. Our system also found out that Dnp.chemnetbase.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.
dnp.chemnetbase.com
Open Graph description is not detected on the main page of Dnp CHEMnetBASE. 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: