Tools & Wizards About Us
iraf.net screenshot

Report Summary

  • 94

    Performance

    Renders faster than
    93% of other websites

  • 59

    Accessibility

    Visual factors better than
    that of 26% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    19% of websites

  • 76

    SEO

    Google-friendlier than
    35% of websites

iraf.net

iraf.net - User Support and IRAF Software

Page Load Speed

6 sec in total

First Response

2.3 sec

Resources Loaded

3.3 sec

Page Rendered

492 ms

iraf.net screenshot

About Website

Welcome to iraf.net homepage info - get ready to check IRAF best content for United States right away, or after learning these important things about iraf.net

Visit iraf.net

Key Findings

We analyzed Iraf.net page load time and found that the first response time was 2.3 sec and then it took 3.8 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

iraf.net performance score

94

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.9 s

87/100

10%

LCP (Largest Contentful Paint)

Value1.9 s

98/100

25%

SI (Speed Index)

Value4.9 s

64/100

10%

TBT (Total Blocking Time)

Value30 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.043

99/100

15%

TTI (Time to Interactive)

Value2.6 s

98/100

10%

Network Requests Diagram

iraf.net

2272 ms

style.css

167 ms

style.css

181 ms

style.css

170 ms

jquery.lightbox-0.5.css

200 ms

Our browser made a total of 36 requests to load all elements on the main page. We found that 58% of them (21 requests) were addressed to the original Iraf.net, 11% (4 requests) were made to Pagead2.googlesyndication.com and 11% (4 requests) were made to Tpc.googlesyndication.com. The less responsive or slowest element that took the longest time to load (2.3 sec) belongs to the original domain Iraf.net.

Page Optimization Overview & Recommendations

Page size can be reduced by 214.0 kB (60%)

Content Size

354.4 kB

After Optimization

140.4 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Iraf.net main page is 354.4 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. 30% of websites need less resources to load. Javascripts take 144.9 kB which makes up the majority of the site volume.

HTML Optimization

-79%

Potential reduce by 57.9 kB

  • Original 73.1 kB
  • After minification 65.7 kB
  • After compression 15.2 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 57.9 kB or 79% of the original size.

Image Optimization

-3%

Potential reduce by 1.8 kB

  • Original 58.5 kB
  • After minification 56.8 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. IRAF images are well optimized though.

JavaScript Optimization

-60%

Potential reduce by 87.4 kB

  • Original 144.9 kB
  • After minification 128.6 kB
  • After compression 57.5 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 87.4 kB or 60% of the original size.

CSS Optimization

-86%

Potential reduce by 66.9 kB

  • Original 77.9 kB
  • After minification 46.6 kB
  • After compression 11.0 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. Iraf.net needs all CSS files to be minified and compressed as it can save up to 66.9 kB or 86% of the original size.

Requests Breakdown

Number of requests can be reduced by 24 (71%)

Requests Now

34

After Optimization

10

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 34 CSS, Javascripts, AJAX and image requests in order to completely render the main page of IRAF. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 12 to 1 for JavaScripts and from 8 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

iraf.net

iraf.net

2272 ms

style.css

style.css

167 ms

style.css

style.css

181 ms

style.css

style.css

170 ms

jquery.lightbox-0.5.css

jquery.lightbox-0.5.css

200 ms

forum.css

forum.css

183 ms

smilies.css.php

smilies.css.php

505 ms

style.css

style.css

254 ms

rating.css

rating.css

263 ms

urchin.js

urchin.js

13 ms

show_ads.js

show_ads.js

5 ms

common.js

common.js

233 ms

jquery.min.js

jquery.min.js

375 ms

script.js

script.js

284 ms

fix_tooltips.js

fix_tooltips.js

295 ms

jquery.lightbox-0.5.1.js

jquery.lightbox-0.5.1.js

306 ms

__utm.gif

__utm.gif

64 ms

bg_header.gif

bg_header.gif

172 ms

print.png

print.png

212 ms

IRAF_30_small.jpg

IRAF_30_small.jpg

316 ms

topic_fig.gif

topic_fig.gif

204 ms

topic_bug.gif

topic_bug.gif

206 ms

search.png

search.png

213 ms

redarrow.gif

redarrow.gif

262 ms

ca-pub-6675207251588660.js

ca-pub-6675207251588660.js

61 ms

zrt_lookup.html

zrt_lookup.html

59 ms

show_ads_impl.js

show_ads_impl.js

67 ms

ads

ads

255 ms

osd.js

osd.js

4 ms

m_js_controller.js

m_js_controller.js

24 ms

abg.js

abg.js

46 ms

favicon

favicon

54 ms

googlelogo_color_112x36dp.png

googlelogo_color_112x36dp.png

49 ms

nessie_icon_thin_arrow_big_white.png

nessie_icon_thin_arrow_big_white.png

39 ms

s

s

24 ms

x_button_blue2.png

x_button_blue2.png

7 ms

Accessibility Review

iraf.net accessibility score

59

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.

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<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

High

Image elements do not have [alt] attributes

High

Form elements do not have associated labels

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>).

Best Practices

iraf.net best practices score

58

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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

iraf.net SEO score

76

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

Links do not have descriptive text

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

    EN

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Iraf.net can be misinterpreted by Google and other search engines. Our service has detected that English 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 Iraf.net 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

iraf.net

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