2.6 sec in total
101 ms
2.1 sec
429 ms
Click here to check amazing NYC Data Science content for United States. Otherwise, check out these important facts you probably never knew about nycdatascience.com
NYC Data Science Academy offers immersive data science bootcamp, onsite and remote data science courses, corporate training, career development, and consulting.
Visit nycdatascience.comWe analyzed Nycdatascience.com page load time and found that the first response time was 101 ms and then it took 2.5 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 45% of websites can load faster.
nycdatascience.com performance score
name
value
score
weighting
Value4.0 s
23/100
10%
Value10.4 s
0/100
25%
Value9.1 s
14/100
10%
Value1,810 ms
9/100
30%
Value0.04
99/100
15%
Value18.4 s
3/100
10%
101 ms
87 ms
28 ms
60 ms
85 ms
Our browser made a total of 139 requests to load all elements on the main page. We found that 4% of them (5 requests) were addressed to the original Nycdatascience.com, 58% (80 requests) were made to 1pt7em5tigj2edpz62et00fb.wpengine.netdna-cdn.com and 4% (6 requests) were made to Secure.livechatinc.com. The less responsive or slowest element that took the longest time to load (575 ms) relates to the external source S.ytimg.com.
Page size can be reduced by 2.4 MB (55%)
4.4 MB
2.0 MB
In fact, the total size of Nycdatascience.com main page is 4.4 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. 85% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Javascripts take 2.0 MB which makes up the majority of the site volume.
Potential reduce by 74.6 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 74.6 kB or 79% of the original size.
Potential reduce by 49.3 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. NYC Data Science images are well optimized though.
Potential reduce by 1.4 MB
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 1.4 MB or 69% of the original size.
Potential reduce by 932.2 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. Nycdatascience.com needs all CSS files to be minified and compressed as it can save up to 932.2 kB or 85% of the original size.
Number of requests can be reduced by 107 (84%)
127
20
The browser has sent 127 CSS, Javascripts, AJAX and image requests in order to completely render the main page of NYC Data Science. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 58 to 1 for JavaScripts and from 40 to 1 for CSS and as a result speed up the page load time.
nycdatascience.com
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nycdatascience.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.
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
Tables and lists
These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.
Impact
Issue
List items (<li>) are not contained within <ul> or <ol> parent elements.
nycdatascience.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
nycdatascience.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
Image elements do not have [alt] attributes
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
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 Nycdatascience.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 Nycdatascience.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.
nycdatascience.com
Open Graph data is detected on the main page of NYC Data Science. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: