9.7 sec in total
1.2 sec
8.3 sec
179 ms
Click here to check amazing Isbn content for Iran. Otherwise, check out these important facts you probably never knew about isbn.ir
CoSpace - Coworking Space Website Template
Visit isbn.irWe analyzed Isbn.ir page load time and found that the first response time was 1.2 sec and then it took 8.5 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster. This domain responded with an error, which can significantly jeopardize Isbn.ir rating and web reputation
isbn.ir performance score
name
value
score
weighting
Value6.8 s
2/100
10%
Value14.3 s
0/100
25%
Value9.3 s
12/100
10%
Value2,560 ms
4/100
30%
Value0.771
5/100
15%
Value14.3 s
9/100
10%
1203 ms
32 ms
558 ms
384 ms
394 ms
Our browser made a total of 67 requests to load all elements on the main page. We found that 88% of them (59 requests) were addressed to the original Isbn.ir, 4% (3 requests) were made to Fonts.gstatic.com and 1% (1 request) were made to Ajax.googleapis.com. The less responsive or slowest element that took the longest time to load (5.2 sec) belongs to the original domain Isbn.ir.
Page size can be reduced by 609.2 kB (57%)
1.1 MB
463.6 kB
In fact, the total size of Isbn.ir main page is 1.1 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. 40% of websites need less resources to load. Javascripts take 495.9 kB which makes up the majority of the site volume.
Potential reduce by 61.0 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 10.8 kB, which is 14% 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 61.0 kB or 81% of the original size.
Potential reduce by 65.8 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, Isbn needs image optimization as it can save up to 65.8 kB or 15% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 429.9 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 429.9 kB or 87% of the original size.
Potential reduce by 52.5 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. Isbn.ir needs all CSS files to be minified and compressed as it can save up to 52.5 kB or 82% of the original size.
Number of requests can be reduced by 20 (36%)
55
35
The browser has sent 55 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Isbn. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 9 to 1 for JavaScripts and from 13 to 1 for CSS and as a result speed up the page load time.
isbn.ir
1203 ms
jquery.min.js
32 ms
styles.css
558 ms
responsive.css
384 ms
fonts.css
394 ms
Tooltips.css
404 ms
modal.css
420 ms
demo.css
570 ms
jquery-1.8.3.min.js
571 ms
js-main.js
584 ms
normalize.css
602 ms
demo.css
717 ms
icons.css
746 ms
component.css
861 ms
modernizr.custom.js
766 ms
Pollstyle.css
766 ms
DefaultPage.js
621 ms
WebResource.axd
549 ms
ScriptResource.axd
576 ms
ScriptResource.axd
2018 ms
ScriptResource.axd
1135 ms
Menu.css
636 ms
c.aspx
279 ms
classie.js
692 ms
mlpushmenu.js
736 ms
css
24 ms
Captcha.ashx
219 ms
progress.gif
461 ms
info01.jpg
3550 ms
booksize.png
1906 ms
nonbooksize.png
950 ms
BarcodeHandler.aspx
659 ms
FaLogo.png
955 ms
EnLogo.png
842 ms
vazir.png
1039 ms
info-title.png
1138 ms
isbn-to-barcode.png
1150 ms
ten-to-Thirteen.png
1223 ms
comments.png
1323 ms
ccontact.png
1354 ms
voting.png
1417 ms
tab01.jpg
2592 ms
tab02.jpg
2452 ms
newblog.png
1633 ms
ketablogo.png
1646 ms
ahleghalamlogo.png
1807 ms
ibnalogo.png
2008 ms
ketabsal.png
1982 ms
isbn-international.png
2093 ms
ismn-international.png
2173 ms
nlai.png
2373 ms
copy-right.png
2279 ms
add.png
799 ms
BigTopPic.jpg
5191 ms
login-blur.png
988 ms
login-btn.png
1001 ms
linecons.woff
1069 ms
stat5.gif
165 ms
xstat.aspx
165 ms
nassim-regular.woff
1136 ms
nassim-bold.woff
1152 ms
nj47mAZe0mYUIySgfn0wpQ.ttf
27 ms
v0SdcGFAl2aezM9Vq_aFTQ.ttf
124 ms
DvlFBScY1r-FMtZSYIYoYw.ttf
74 ms
linecons.ttf
730 ms
nassim-regular.ttf
3078 ms
nassim-bold.ttf
3803 ms
isbn.ir 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.
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
Links do not have a discernible name
isbn.ir best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Ensure CSP is effective against XSS attacks
User Experience
Impact
Issue
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
Page has valid source maps
isbn.ir SEO score
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
FA
N/A
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Isbn.ir can be misinterpreted by Google and other search engines. Our service has detected that Persian 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 Isbn.ir 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.
isbn.ir
Open Graph description is not detected on the main page of Isbn. 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: