Tools & Wizards About Us
hos.gnowledge.org screenshot

Report Summary

  • 78

    Performance

    Renders faster than
    85% of other websites

  • 90

    Accessibility

    Visual factors better than
    that of 74% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 77

    SEO

    Google-friendlier than
    36% of websites

hos.gnowledge.org

An Invitation to History of Science: A short introductory course for undergraduates — Invitation to History of Science: H201

Page Load Speed

4.1 sec in total

First Response

902 ms

Resources Loaded

2.8 sec

Page Rendered

403 ms

hos.gnowledge.org screenshot

About Website

Click here to check amazing Hos Gnowledge content for India. Otherwise, check out these important facts you probably never knew about hos.gnowledge.org

This site is a collaborative space where I am weaving a course on "An Invitation to History of Science: A short introductory course for undergraduates".

Visit hos.gnowledge.org

Key Findings

We analyzed Hos.gnowledge.org page load time and found that the first response time was 902 ms and then it took 3.2 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

hos.gnowledge.org performance score

78

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.2 s

42/100

10%

LCP (Largest Contentful Paint)

Value3.2 s

71/100

25%

SI (Speed Index)

Value8.9 s

15/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.027

100/100

15%

TTI (Time to Interactive)

Value3.2 s

94/100

10%

Network Requests Diagram

hos.gnowledge.org

902 ms

jquery-cachekey0076.js

615 ms

sarissa-cachekey8600.js

638 ms

base.css

230 ms

public.css

234 ms

Our browser made a total of 23 requests to load all elements on the main page. We found that all of those requests were addressed to Hos.gnowledge.org and no external sources were called. The less responsive or slowest element that took the longest time to load (1.3 sec) belongs to the original domain Hos.gnowledge.org.

Page Optimization Overview & Recommendations

Page size can be reduced by 35.7 kB (16%)

Content Size

226.8 kB

After Optimization

191.1 kB

  • HTML
  • Images

In fact, the total size of Hos.gnowledge.org main page is 226.8 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. 25% of websites need less resources to load. Images take 181.0 kB which makes up the majority of the site volume.

HTML Optimization

-78%

Potential reduce by 35.7 kB

  • Original 45.8 kB
  • After minification 34.6 kB
  • After compression 10.1 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 11.1 kB, which is 24% 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 35.7 kB or 78% of the original size.

Image Optimization

-0%

Potential reduce by 0 B

  • Original 181.0 kB
  • After minification 181.0 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. Hos Gnowledge images are well optimized though.

Requests Breakdown

Number of requests can be reduced by 12 (55%)

Requests Now

22

After Optimization

10

  • Images
  • JavaScript
  • CSS

The browser has sent 22 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Hos Gnowledge. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 13 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

hos.gnowledge.org

hos.gnowledge.org

902 ms

jquery-cachekey0076.js

jquery-cachekey0076.js

615 ms

sarissa-cachekey8600.js

sarissa-cachekey8600.js

638 ms

base.css

base.css

230 ms

public.css

public.css

234 ms

columns.css

columns.css

401 ms

authoring.css

authoring.css

415 ms

portlets.css

portlets.css

439 ms

controlpanel.css

controlpanel.css

440 ms

print.css

print.css

446 ms

deprecated.css

deprecated.css

458 ms

navtree.css

navtree.css

603 ms

invisibles.css

invisibles.css

620 ms

forms.css

forms.css

658 ms

ploneKss.css

ploneKss.css

668 ms

ploneCustom.css

ploneCustom.css

671 ms

hoscourselogo-greek-3.png

hoscourselogo-greek-3.png

1256 ms

spinner.gif

spinner.gif

796 ms

input_background.gif

input_background.gif

232 ms

search_icon.gif

search_icon.gif

235 ms

bullet.gif

bullet.gif

217 ms

linkOpaque.gif

linkOpaque.gif

231 ms

discussionitem_icon.gif

discussionitem_icon.gif

325 ms

Accessibility Review

hos.gnowledge.org accessibility score

90

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

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

High

Links do not have a discernible name

Best Practices

hos.gnowledge.org 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

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

hos.gnowledge.org SEO score

77

Search Engine Optimization Advices

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Hos.gnowledge.org can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it matches the claimed language. Our system also found out that Hos.gnowledge.org 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

hos.gnowledge.org

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