Tools & Wizards About Us
nfer.ac.uk screenshot

Report Summary

  • 39

    Performance

    Renders faster than
    58% of other websites

  • 98

    Accessibility

    Visual factors better than
    that of 94% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 100

    SEO

    Google-friendlier than
    94% of websites

nfer.ac.uk

Home - NFER

Page Load Speed

2.4 sec in total

First Response

191 ms

Resources Loaded

1.8 sec

Page Rendered

401 ms

nfer.ac.uk screenshot

About Website

Click here to check amazing NFER content for United Kingdom. Otherwise, check out these important facts you probably never knew about nfer.ac.uk

NFER is the leading independent provider of research insights in education.

Visit nfer.ac.uk

Key Findings

We analyzed Nfer.ac.uk page load time and found that the first response time was 191 ms and then it took 2.2 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 45% of websites can load faster.

Performance Metrics

nfer.ac.uk performance score

39

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.5 s

95/100

10%

LCP (Largest Contentful Paint)

Value6.2 s

11/100

25%

SI (Speed Index)

Value4.4 s

74/100

10%

TBT (Total Blocking Time)

Value1,570 ms

13/100

30%

CLS (Cumulative Layout Shift)

Value0.103

89/100

15%

TTI (Time to Interactive)

Value10.4 s

24/100

10%

Network Requests Diagram

nfer.ac.uk

191 ms

nfer.ac.uk

355 ms

api.js

46 ms

global.css

19 ms

home.css

31 ms

Our browser made a total of 36 requests to load all elements on the main page. We found that 81% of them (29 requests) were addressed to the original Nfer.ac.uk, 8% (3 requests) were made to Cdn-ukwest.onetrust.com and 6% (2 requests) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (1.2 sec) belongs to the original domain Nfer.ac.uk.

Page Optimization Overview & Recommendations

Page size can be reduced by 96.3 kB (22%)

Content Size

432.1 kB

After Optimization

335.8 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Nfer.ac.uk main page is 432.1 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. 40% of websites need less resources to load. Images take 277.6 kB which makes up the majority of the site volume.

HTML Optimization

-89%

Potential reduce by 87.8 kB

  • Original 99.0 kB
  • After minification 81.2 kB
  • After compression 11.2 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. This page needs HTML code to be minified as it can gain 17.8 kB, which is 18% 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 87.8 kB or 89% of the original size.

Image Optimization

-3%

Potential reduce by 8.1 kB

  • Original 277.6 kB
  • After minification 269.5 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. NFER images are well optimized though.

JavaScript Optimization

-1%

Potential reduce by 74 B

  • Original 11.9 kB
  • After minification 11.9 kB
  • After compression 11.8 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. This website has mostly compressed JavaScripts.

CSS Optimization

-1%

Potential reduce by 339 B

  • Original 43.6 kB
  • After minification 43.6 kB
  • After compression 43.2 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. Nfer.ac.uk has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 6 (23%)

Requests Now

26

After Optimization

20

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 26 CSS, Javascripts, AJAX and image requests in order to completely render the main page of NFER. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 7 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

nfer.ac.uk

nfer.ac.uk

191 ms

nfer.ac.uk

nfer.ac.uk

355 ms

api.js

api.js

46 ms

global.css

global.css

19 ms

home.css

home.css

31 ms

OtAutoBlock.js

OtAutoBlock.js

65 ms

otSDKStub.js

otSDKStub.js

91 ms

js

js

75 ms

js

js

142 ms

email-decode.min.js

email-decode.min.js

27 ms

5b9cfafb-ad3b-4366-a3a8-80ce732651f9.json

5b9cfafb-ad3b-4366-a3a8-80ce732651f9.json

49 ms

nfer-site-logo.png

nfer-site-logo.png

32 ms

nfer-logo-white-460x180.png

nfer-logo-white-460x180.png

18 ms

homepage-banner-image-07.jpg

homepage-banner-image-07.jpg

774 ms

t_levels_positive_progression_blog_banner.jpg

t_levels_positive_progression_blog_banner.jpg

19 ms

teacher_supply_challenge_blog_banner.jpg

teacher_supply_challenge_blog_banner.jpg

31 ms

nfer_online_assessments_banner.jpg

nfer_online_assessments_banner.jpg

36 ms

assessing_life_skills_with_young_learners_banner.jpg

assessing_life_skills_with_young_learners_banner.jpg

37 ms

female_teacher_showing_tests_examples_to_children_in_classroom.jpg

female_teacher_showing_tests_examples_to_children_in_classroom.jpg

32 ms

woman_looking_at_computer-new-homepage.jpg

woman_looking_at_computer-new-homepage.jpg

622 ms

key-topics-expertise-main-page.jpg

key-topics-expertise-main-page.jpg

46 ms

three_children_in_uganda_class_looking_at_a_book.jpg

three_children_in_uganda_class_looking_at_a_book.jpg

48 ms

ed_select_comm_statement_1.jpg

ed_select_comm_statement_1.jpg

54 ms

westminster.jpg

westminster.jpg

52 ms

nfer_online_assessments.jpg

nfer_online_assessments.jpg

61 ms

the_mat_factor_1.jpg

the_mat_factor_1.jpg

785 ms

falling_school_rolls_1.jpg

falling_school_rolls_1.jpg

70 ms

Gotham-Book.ttf

Gotham-Book.ttf

435 ms

Gotham-Medium.ttf

Gotham-Medium.ttf

424 ms

Gotham-Thin.ttf

Gotham-Thin.ttf

453 ms

Gotham-Light.ttf

Gotham-Light.ttf

793 ms

Gotham-ExtraLight.ttf

Gotham-ExtraLight.ttf

838 ms

Gotham-Bold.ttf

Gotham-Bold.ttf

827 ms

Gotham-Black.ttf

Gotham-Black.ttf

1005 ms

Gotham-Ultra.ttf

Gotham-Ultra.ttf

1151 ms

location

location

39 ms

Accessibility Review

nfer.ac.uk accessibility score

98

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.

Best Practices

nfer.ac.uk best practices score

92

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

SEO Factors

nfer.ac.uk SEO score

100

Search Engine Optimization Advices

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

    EN

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Nfer.ac.uk 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 Nfer.ac.uk 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

nfer.ac.uk

Open Graph data is detected on the main page of NFER. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: