6.9 sec in total
182 ms
2.3 sec
4.4 sec
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Visit youdaxue.comWe analyzed Youdaxue.com page load time and found that the first response time was 182 ms and then it took 6.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.
youdaxue.com performance score
name
value
score
weighting
Value4.7 s
12/100
10%
Value7.8 s
3/100
25%
Value16.8 s
0/100
10%
Value47,350 ms
0/100
30%
Value0.032
100/100
15%
Value67.8 s
0/100
10%
182 ms
193 ms
247 ms
290 ms
114 ms
Our browser made a total of 79 requests to load all elements on the main page. We found that 0% of them (0 request) were addressed to the original Youdaxue.com, 4% (3 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (1.1 sec) relates to the external source Udacity.com.
Page size can be reduced by 94.2 kB (4%)
2.6 MB
2.5 MB
In fact, the total size of Youdaxue.com main page is 2.6 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. 80% 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. Images take 2.4 MB which makes up the majority of the site volume.
Potential reduce by 69.4 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 69.4 kB or 81% of the original size.
Potential reduce by 24.2 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. Youdaxue images are well optimized though.
Potential reduce by 284 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 314 B
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. Youdaxue.com has all CSS files already compressed.
Number of requests can be reduced by 33 (45%)
73
40
The browser has sent 73 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Youdaxue. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 25 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.
www.udacity.com
182 ms
0bda84c1563dccd05c0d.css
193 ms
16579e70d435d1d57f6a.css
247 ms
9549c19393b488f750c7.css
290 ms
ea9f452f56ecd632c8d8.css
114 ms
bf82438091918d125568.css
108 ms
polyfills-a40ef1678bae11e696dba45124eadd70.js
115 ms
693.85ca9e10e2311ac3d21f.js
204 ms
4914-7bcead4fb2d8208795a7.js
206 ms
420.3f71daf5719cf3479251.js
205 ms
527.849c8ac8d1c8dd1ee576.js
211 ms
4274.1f0c2180a20d08a7415b.js
214 ms
webpack-38a2b81689b89c96e4ce.js
305 ms
framework-19d8684231e2bb7ff9a4.js
640 ms
main-8fbddbd3d4b3b2e64d0f.js
233 ms
_app-b3bcd9a79ca3c5413265.js
256 ms
3f2dd09b-95c3431bbabe20e4f9da.js
258 ms
7276-ec66cf66fc8bf3142ba1.js
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2774-c04d7978ac8bd125a6a4.js
264 ms
7614-74f53acad3c285f2671d.js
920 ms
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868 ms
4122-6a5321182cb812ec41ce.js
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7509-f5a7ddc59122f1ee6570.js
974 ms
4187-820721b622bb44958672.js
853 ms
2786-5513ca65aae83da4c33f.js
914 ms
8170-b97ebcbf3de1c4beaeff.js
904 ms
1682-2d67fd4c0bd2107356bf.js
882 ms
9595-3d9cc84a6d139a60118a.js
907 ms
%5B%5B...slug%5D%5D-7ad24b5bf50ccb5d8cb5.js
936 ms
_buildManifest.js
914 ms
_ssgManifest.js
1124 ms
udacity-tt-logo.svg
920 ms
mobile-open.svg
1005 ms
ai.svg
1041 ms
autonomous-systems.svg
1026 ms
business.svg
1078 ms
cloud-computing.svg
1063 ms
cybersecurity.svg
980 ms
data-science.svg
1037 ms
executive-leadership.svg
938 ms
programming.svg
920 ms
ipsos-promo-1.png
1004 ms
project-management.svg
938 ms
IDC_Artwork_Desktop__1__1_.png
998 ms
icon-enterprise.svg
952 ms
logo-forrester.svg
1010 ms
icon-government.svg
921 ms
logo-misk-academy.png
979 ms
icon-individuals.svg
921 ms
udacitys-talent-transformation-suite-graphic.png
1005 ms
icon-workshop-dark.svg
926 ms
icon-platform-dark.svg
972 ms
icon-impact-dark.svg
933 ms
udacity-digital-competency-platform-0.png
580 ms
icon-school-ai.svg
444 ms
icon-school-autonomous-systems.svg
510 ms
icon-school-business.svg
456 ms
icon-cloud-computing.svg
443 ms
icon-school-cybersecurity.svg
425 ms
icon-school-data-science.svg
497 ms
icon-school-executive-leadership.svg
539 ms
icon-school-programmin-development.svg
493 ms
icon-curriculum.svg
445 ms
icon-feedback.svg
436 ms
icon-projects.svg
424 ms
icon-expert-network.svg
391 ms
customer-logos-mobile2.png
454 ms
icon-facebook.svg
382 ms
icon-twitter.svg
371 ms
icon-linkedin.svg
383 ms
icon-instagram.svg
386 ms
icon-arrow-up-blue.svg
374 ms
icon-arrow-down-black.svg
373 ms
cta-background2.jpg
366 ms
PolySans-Neutral.woff
247 ms
PolySans-Median.woff
200 ms
cJZKeOuBrn4kERxqtaUH3bO3LdcAZYWl9Si6vvxL-qU.woff
247 ms
DXI1ORHCpsQm3Vp6mXoaTaRDOzjiPcYnFooOUGCOsRk.woff
247 ms
MTP_ySUJH_bn48VBG8sNSqRDOzjiPcYnFooOUGCOsRk.woff
248 ms
youdaxue.com accessibility score
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
Heading elements are not in a sequentially-descending order
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
youdaxue.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
youdaxue.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 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 Youdaxue.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 Youdaxue.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.
youdaxue.com
Open Graph data is detected on the main page of Youdaxue. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: