Tools & Wizards About Us
hbio.ir screenshot

Report Summary

  • 46

    Performance

    Renders faster than
    65% of other websites

  • 79

    Accessibility

    Visual factors better than
    that of 48% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 85

    SEO

    Google-friendlier than
    56% of websites

hbio.ir

خانه زیست شناسی

Page Load Speed

4.2 sec in total

First Response

714 ms

Resources Loaded

2.8 sec

Page Rendered

609 ms

hbio.ir screenshot

About Website

Click here to check amazing Hbio content for Iran. Otherwise, check out these important facts you probably never knew about hbio.ir

خانه زیست شناسی, مرجع دریافت کتاب های زیست شناسی, مصطفي پويان، زیست شناسی، کتاب

Visit hbio.ir

Key Findings

We analyzed Hbio.ir page load time and found that the first response time was 714 ms and then it took 3.4 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.

Performance Metrics

hbio.ir performance score

46

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.9 s

11/100

10%

LCP (Largest Contentful Paint)

Value5.8 s

15/100

25%

SI (Speed Index)

Value11.2 s

5/100

10%

TBT (Total Blocking Time)

Value260 ms

83/100

30%

CLS (Cumulative Layout Shift)

Value0.036

100/100

15%

TTI (Time to Interactive)

Value17.4 s

4/100

10%

Network Requests Diagram

hbio.ir

714 ms

template_css.css

798 ms

sale2.jpg

1111 ms

001.jpg

1114 ms

00212.jpg

882 ms

Our browser made a total of 39 requests to load all elements on the main page. We found that all of those requests were addressed to Hbio.ir and no external sources were called. The less responsive or slowest element that took the longest time to load (1.9 sec) belongs to the original domain Hbio.ir.

Page Optimization Overview & Recommendations

Page size can be reduced by 82.9 kB (8%)

Content Size

1.1 MB

After Optimization

979.0 kB

  • HTML
  • Images
  • CSS

In fact, the total size of Hbio.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. 25% of websites need less resources to load. Images take 1.0 MB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 18.7 kB

  • Original 23.4 kB
  • After minification 21.8 kB
  • After compression 4.7 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 18.7 kB or 80% of the original size.

Image Optimization

-6%

Potential reduce by 60.6 kB

  • Original 1.0 MB
  • After minification 973.3 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. Hbio images are well optimized though.

CSS Optimization

-79%

Potential reduce by 3.6 kB

  • Original 4.6 kB
  • After minification 4.0 kB
  • After compression 976 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. Hbio.ir needs all CSS files to be minified and compressed as it can save up to 3.6 kB or 79% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

37

After Optimization

37

  • Images
  • CSS

The browser has sent 37 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Hbio. According to our analytics all requests are already optimized.

Network Requests Diagram

hbio.ir

hbio.ir

714 ms

template_css.css

template_css.css

798 ms

sale2.jpg

sale2.jpg

1111 ms

001.jpg

001.jpg

1114 ms

00212.jpg

00212.jpg

882 ms

00313.jpg

00313.jpg

883 ms

01em.jpg

01em.jpg

882 ms

02em.jpg

02em.jpg

1116 ms

03em.jpg

03em.jpg

1282 ms

04em.jpg

04em.jpg

1294 ms

002.jpg

002.jpg

1294 ms

003-abi.jpg

003-abi.jpg

1273 ms

004-abi.jpg

004-abi.jpg

1274 ms

005-ghermez.jpg

005-ghermez.jpg

1275 ms

006-ghermez.jpg

006-ghermez.jpg

1433 ms

007-sabz.jpg

007-sabz.jpg

1430 ms

008-sabz.jpg

008-sabz.jpg

1447 ms

00007.jpg

00007.jpg

1528 ms

00005.jpg

00005.jpg

1563 ms

00004.jpg

00004.jpg

1531 ms

00003.jpg

00003.jpg

1716 ms

00002.jpg

00002.jpg

1723 ms

3321.jpg

3321.jpg

1840 ms

112.jpg

112.jpg

1805 ms

116.jpg

116.jpg

1696 ms

117.jpg

117.jpg

1722 ms

56.jpg

56.jpg

1930 ms

titleb.jpg

titleb.jpg

1807 ms

menugb.jpg

menugb.jpg

1805 ms

tn_12505324169674.jpg

tn_12505324169674.jpg

1806 ms

parsian.jpg

parsian.jpg

1891 ms

bg.jpg

bg.jpg

1197 ms

menu.jpg

menu.jpg

1234 ms

title.jpg

title.jpg

1248 ms

titlebg.jpg

titlebg.jpg

1246 ms

menug.jpg

menug.jpg

1285 ms

patterng.jpg

patterng.jpg

1322 ms

menu3.jpg

menu3.jpg

1326 ms

menu2.jpg

menu2.jpg

1323 ms

Accessibility Review

hbio.ir accessibility score

79

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

[id] attributes on active, focusable elements are not unique

High

Heading elements are not in a sequentially-descending order

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

ARIA IDs are not unique

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

Best Practices

hbio.ir best practices score

75

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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

hbio.ir SEO score

85

Search Engine Optimization Advices

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

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 Hbio.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 Hbio.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

hbio.ir

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