Report Summary

  • 36

    Performance

    Renders faster than
    55% of other websites

  • 85

    Accessibility

    Visual factors better than
    that of 67% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    34% of websites

  • 75

    SEO

    Google-friendlier than
    41% of websites

edu.nano.ir

سیستم جامع آموزش فناوری نانو

Page Load Speed

11.5 sec in total

First Response

3 sec

Resources Loaded

8.2 sec

Page Rendered

288 ms

edu.nano.ir screenshot

About Website

Welcome to edu.nano.ir homepage info - get ready to check Edu Nano best content for Iran right away, or after learning these important things about edu.nano.ir

سیستم جامع آموزش فناوری نانو

Visit edu.nano.ir

Key Findings

We analyzed Edu.nano.ir page load time and found that the first response time was 3 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.

Performance Metrics

edu.nano.ir performance score

36

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value8.3 s

0/100

10%

LCP (Largest Contentful Paint)

Value14.3 s

0/100

25%

SI (Speed Index)

Value13.0 s

2/100

10%

TBT (Total Blocking Time)

Value200 ms

90/100

30%

CLS (Cumulative Layout Shift)

Value0.214

58/100

15%

TTI (Time to Interactive)

Value22.1 s

1/100

10%

Network Requests Diagram

edu.nano.ir

2999 ms

reset.css

412 ms

keyframe.css

414 ms

mticon.css

455 ms

iran_v4.css

459 ms

Our browser made a total of 67 requests to load all elements on the main page. We found that 52% of them (35 requests) were addressed to the original Edu.nano.ir, 45% (30 requests) were made to Irannano.org and 3% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (3 sec) belongs to the original domain Edu.nano.ir.

Page Optimization Overview & Recommendations

Page size can be reduced by 625.6 kB (36%)

Content Size

1.7 MB

After Optimization

1.1 MB

In fact, the total size of Edu.nano.ir main page is 1.7 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. 30% of websites need less resources to load. Images take 925.8 kB which makes up the majority of the site volume.

HTML Optimization

-83%

Potential reduce by 47.6 kB

  • Original 57.4 kB
  • After minification 54.3 kB
  • After compression 9.7 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 47.6 kB or 83% of the original size.

Image Optimization

-3%

Potential reduce by 24.2 kB

  • Original 925.8 kB
  • After minification 901.7 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. Edu Nano images are well optimized though.

JavaScript Optimization

-71%

Potential reduce by 414.6 kB

  • Original 583.7 kB
  • After minification 530.8 kB
  • After compression 169.1 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 414.6 kB or 71% of the original size.

CSS Optimization

-87%

Potential reduce by 139.3 kB

  • Original 159.4 kB
  • After minification 128.9 kB
  • After compression 20.2 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. Edu.nano.ir needs all CSS files to be minified and compressed as it can save up to 139.3 kB or 87% of the original size.

Requests Breakdown

Number of requests can be reduced by 27 (41%)

Requests Now

66

After Optimization

39

The browser has sent 66 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Edu Nano. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 15 to 1 for JavaScripts and from 14 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

edu.nano.ir accessibility score

85

Accessibility Issues

Contrast

These are opportunities to improve the legibility of your content.

Impact

Issue

High

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

High

Image elements do not have [alt] attributes

High

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

High

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

High

List items (<li>) are not contained within <ul> or <ol> parent elements.

Best Practices

edu.nano.ir best practices score

67

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Displays images with incorrect aspect ratio

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

edu.nano.ir SEO score

75

Search Engine Optimization Advices

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

Links are not crawlable

High

robots.txt is not valid

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

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

High

Document uses legible font sizes

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    FA

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Edu.nano.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 Edu.nano.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.

Social Sharing Optimization

Open Graph description is not detected on the main page of Edu Nano. 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: