7.1 sec in total
1.6 sec
5.1 sec
363 ms
Click here to check amazing Pvu Tailieu content for Vietnam. Otherwise, check out these important facts you probably never knew about pvu.tailieu.vn
Hàng ngàn tài liệu, luận văn, bài giảng, giáo trình thuộc danh mục hay và cập nhật - Tại thư viện số Đại Học Dầu Khí Việt Nam
Visit pvu.tailieu.vnWe analyzed Pvu.tailieu.vn page load time and found that the first response time was 1.6 sec and then it took 5.5 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.
pvu.tailieu.vn performance score
name
value
score
weighting
Value3.5 s
35/100
10%
Value6.2 s
11/100
25%
Value7.7 s
25/100
10%
Value140 ms
95/100
30%
Value0.018
100/100
15%
Value9.6 s
29/100
10%
1622 ms
1086 ms
1087 ms
1100 ms
1102 ms
Our browser made a total of 69 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Pvu.tailieu.vn, 59% (41 requests) were made to Static.dlib.vn and 26% (18 requests) were made to Image.dlib.vn. The less responsive or slowest element that took the longest time to load (2.4 sec) relates to the external source Image.dlib.vn.
Page size can be reduced by 507.1 kB (58%)
880.6 kB
373.6 kB
In fact, the total size of Pvu.tailieu.vn main page is 880.6 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. 35% of websites need less resources to load. Javascripts take 380.3 kB which makes up the majority of the site volume.
Potential reduce by 78.4 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. This page needs HTML code to be minified as it can gain 17.2 kB, which is 19% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 78.4 kB or 85% of the original size.
Potential reduce by 64.2 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. Obviously, Pvu Tailieu needs image optimization as it can save up to 64.2 kB or 21% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 287.6 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 287.6 kB or 76% of the original size.
Potential reduce by 76.9 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. Pvu.tailieu.vn needs all CSS files to be minified and compressed as it can save up to 76.9 kB or 79% of the original size.
Number of requests can be reduced by 26 (39%)
67
41
The browser has sent 67 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Pvu Tailieu. 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 from 6 to 1 for CSS and as a result speed up the page load time.
pvu.tailieu.vn
1622 ms
general.css
1086 ms
tp_3col_default.css
1087 ms
general_template02.css
1100 ms
school.css
1102 ms
popup.css
1103 ms
jquery-1.2.6.js
1352 ms
common.js
1336 ms
ajax_core.js
1336 ms
caobox.js
1346 ms
1701774_057.jpg
1884 ms
1190580_3610.jpg
1630 ms
2061348114444.jpg
1629 ms
4011419690058.jpg
1663 ms
2661419689789.jpg
1662 ms
2321419689572.jpg
1664 ms
2001419689416.jpg
1899 ms
2821419689787.jpg
1899 ms
4831419689348.jpg
1920 ms
301419689649.jpg
1927 ms
3051419689206.jpg
1929 ms
4241419688937.jpg
2125 ms
6641419689279.jpg
2146 ms
9241419688868.jpg
2147 ms
1738957_346.jpg
2169 ms
pvu_C01_1381482456.jpg
2185 ms
pvu_C01_1381482330.jpg
2193 ms
pvu_C01_1381482066.jpg
2371 ms
banner2.jpg
1311 ms
bg_main_search.gif
254 ms
icon_01.gif
258 ms
btn_tim.gif
253 ms
blank.gif
258 ms
btn_upload.gif
258 ms
new.png
503 ms
pdf16x16.gif
504 ms
paginate_pre.gif
512 ms
paginate_next.gif
512 ms
bg_title_commin.gif
513 ms
huongdansudungdt.png
1255 ms
img_tailieu_footer.gif
755 ms
arrow1.png
755 ms
img_tailieu2.png
755 ms
bg_680x230.gif
777 ms
btn_next_pre.gif
1000 ms
bg_143x173.gif
1016 ms
bg_title_commin2.gif
1020 ms
bg_active_300x25.gif
1011 ms
bg_156x24.gif
1225 ms
icon_search_book.gif
1273 ms
bg_300x21.gif
1267 ms
bg_300x21.gif
1274 ms
bg_arrow_blue_7x4.gif
1470 ms
bg_book.gif
1474 ms
btn_download.gif
1530 ms
source3.jpg
1525 ms
bg_top_col_right_200.gif
1513 ms
bg_bottom_194x3.gif
1509 ms
bg_194x30.gif
1700 ms
bg_bottom_col_right_200.gif
1724 ms
loader.js
23 ms
widget.txt
35 ms
subiz-widget-view.css
108 ms
35571
114 ms
init
254 ms
fontawesome-webfont.woff
229 ms
cross-storage.html
67 ms
avatar-chat.png
74 ms
logo-icon.png
119 ms
pvu.tailieu.vn 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
<input type="image"> elements do not have [alt] text
Form elements do not have associated labels
Links do not have a discernible name
pvu.tailieu.vn 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
Displays images with incorrect aspect ratio
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
Browser errors were logged to the console
pvu.tailieu.vn SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
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
VI
N/A
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Pvu.tailieu.vn can be misinterpreted by Google and other search engines. Our service has detected that Vietnamese 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 Pvu.tailieu.vn 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.
pvu.tailieu.vn
Open Graph description is not detected on the main page of Pvu Tailieu. 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: