Tools & Wizards About Us
assayofficelondon.co.uk screenshot

Report Summary

  • 12

    Performance

    Renders faster than
    25% of other websites

  • 90

    Accessibility

    Visual factors better than
    that of 74% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 90

    SEO

    Google-friendlier than
    68% of websites

assayofficelondon.co.uk

Goldsmiths' Company Assay Office in London | Goldsmiths Hallmarking

Page Load Speed

3.1 sec in total

First Response

172 ms

Resources Loaded

2.7 sec

Page Rendered

254 ms

assayofficelondon.co.uk screenshot

About Website

Welcome to assayofficelondon.co.uk homepage info - get ready to check Assay Office London best content for United Kingdom right away, or after learning these important things about assayofficelondon.co.uk

The Goldsmiths' Company Assay Office: hallmarking in London since 1300. Assaying gold, silver and palladium and platinum. Laser Engraving and Lab Services.

Visit assayofficelondon.co.uk

Key Findings

We analyzed Assayofficelondon.co.uk page load time and found that the first response time was 172 ms and then it took 3 sec to load all DOM resources and completely render a web page. This is a poor result, as 55% of websites can load faster.

Performance Metrics

assayofficelondon.co.uk performance score

12

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.3 s

7/100

10%

LCP (Largest Contentful Paint)

Value13.2 s

0/100

25%

SI (Speed Index)

Value10.3 s

8/100

10%

TBT (Total Blocking Time)

Value6,910 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.168

70/100

15%

TTI (Time to Interactive)

Value20.7 s

2/100

10%

Network Requests Diagram

assayofficelondon.co.uk

172 ms

www.assayofficelondon.co.uk

620 ms

icon

48 ms

css

66 ms

line-awesome.min.css

154 ms

Our browser made a total of 71 requests to load all elements on the main page. We found that 46% of them (33 requests) were addressed to the original Assayofficelondon.co.uk, 8% (6 requests) were made to Unpkg.com and 8% (6 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (951 ms) belongs to the original domain Assayofficelondon.co.uk.

Page Optimization Overview & Recommendations

Page size can be reduced by 707.5 kB (34%)

Content Size

2.1 MB

After Optimization

1.4 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Assayofficelondon.co.uk main page is 2.1 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. 80% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Images take 1.2 MB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 67.0 kB

  • Original 82.2 kB
  • After minification 65.0 kB
  • After compression 15.1 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 17.2 kB, which is 21% 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 67.0 kB or 82% of the original size.

Image Optimization

-18%

Potential reduce by 213.2 kB

  • Original 1.2 MB
  • After minification 972.7 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. Obviously, Assay Office London needs image optimization as it can save up to 213.2 kB or 18% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-44%

Potential reduce by 267.3 kB

  • Original 603.6 kB
  • After minification 583.7 kB
  • After compression 336.3 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 267.3 kB or 44% of the original size.

CSS Optimization

-67%

Potential reduce by 159.9 kB

  • Original 237.6 kB
  • After minification 181.4 kB
  • After compression 77.7 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. Assayofficelondon.co.uk needs all CSS files to be minified and compressed as it can save up to 159.9 kB or 67% of the original size.

Requests Breakdown

Number of requests can be reduced by 25 (46%)

Requests Now

54

After Optimization

29

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 54 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Assay Office London. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 21 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

assayofficelondon.co.uk

assayofficelondon.co.uk

172 ms

www.assayofficelondon.co.uk

www.assayofficelondon.co.uk

620 ms

icon

icon

48 ms

css

css

66 ms

line-awesome.min.css

line-awesome.min.css

154 ms

styleCSI.css

styleCSI.css

675 ms

picturefill.min.js

picturefill.min.js

420 ms

popper.js@1

popper.js@1

44 ms

tippy.js@5

tippy.js@5

55 ms

popper.js@1.16.1

popper.js@1.16.1

19 ms

tippy.js@5.2.1

tippy.js@5.2.1

16 ms

popper.min.js

popper.min.js

12 ms

tippy-bundle.iife.min.js

tippy-bundle.iife.min.js

18 ms

jquery.min.js

jquery.min.js

748 ms

jquery.validate.min.js

jquery.validate.min.js

447 ms

jquery.validate.unobtrusive.min.js

jquery.validate.unobtrusive.min.js

374 ms

jquery.unobtrusive-ajax.min.js

jquery.unobtrusive-ajax.min.js

35 ms

csijs.js

csijs.js

951 ms

DependencyHandler.axd

DependencyHandler.axd

510 ms

css

css

21 ms

yap7yzg.js

yap7yzg.js

266 ms

analytics.js

analytics.js

224 ms

gtm.js

gtm.js

245 ms

hotjar-1379023.js

hotjar-1379023.js

432 ms

i3pGZAUS0Qk

i3pGZAUS0Qk

422 ms

logoUpdate.png

logoUpdate.png

387 ms

20170502_fischer_england_0211.jpg

20170502_fischer_england_0211.jpg

243 ms

goldsmiths-hall-exterior_edit.jpg

goldsmiths-hall-exterior_edit.jpg

201 ms

the-goldsmiths-centre-morley-von-sternberg-the-goldsmiths-centre-2012-141.jpg

the-goldsmiths-centre-morley-von-sternberg-the-goldsmiths-centre-2012-141.jpg

245 ms

submitting-your-work-small-3.png

submitting-your-work-small-3.png

507 ms

z-snip.jpg

z-snip.jpg

410 ms

king_charles_iii_coronation_mark_test_aluminium.jpg

king_charles_iii_coronation_mark_test_aluminium.jpg

411 ms

20170502_fischer_england_0211.jpg

20170502_fischer_england_0211.jpg

410 ms

goldsmiths-hall-exterior_edit.jpg

goldsmiths-hall-exterior_edit.jpg

409 ms

submitting-your-work-small-3.png

submitting-your-work-small-3.png

410 ms

hallmarking-key-2024-black-text-300dpi.png

hallmarking-key-2024-black-text-300dpi.png

703 ms

coronation-snip-landscape.jpg

coronation-snip-landscape.jpg

704 ms

hallmark-punch-images.jpg

hallmark-punch-images.jpg

702 ms

laptop-typing.jpg

laptop-typing.jpg

701 ms

hallmark-punch-images.jpg

hallmark-punch-images.jpg

676 ms

tgsc_brandmark-2.png

tgsc_brandmark-2.png

703 ms

logo-alt.png

logo-alt.png

702 ms

20170502_fischer_england_0211.jpg

20170502_fischer_england_0211.jpg

565 ms

goldsmiths-hall-exterior_edit.jpg

goldsmiths-hall-exterior_edit.jpg

808 ms

submitting-your-work-small-3.png

submitting-your-work-small-3.png

795 ms

z-snip.jpg

z-snip.jpg

769 ms

king_charles_iii_coronation_mark_test_aluminium.jpg

king_charles_iii_coronation_mark_test_aluminium.jpg

807 ms

hallmark-punch-images.jpg

hallmark-punch-images.jpg

770 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsjZ0B4gaVc.ttf

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsjZ0B4gaVc.ttf

258 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsiH0B4gaVc.ttf

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsiH0B4gaVc.ttf

261 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsgH1x4gaVc.ttf

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsgH1x4gaVc.ttf

290 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsg-1x4gaVc.ttf

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsg-1x4gaVc.ttf

324 ms

3AE291_17_0.woff

3AE291_17_0.woff

760 ms

line-awesome.svg

line-awesome.svg

91 ms

line-awesome.woff

line-awesome.woff

92 ms

embed.js

embed.js

238 ms

js

js

195 ms

update.min.js

update.min.js

158 ms

d

d

310 ms

d

d

85 ms

d

d

65 ms

www-player.css

www-player.css

51 ms

www-embed-player.js

www-embed-player.js

100 ms

base.js

base.js

131 ms

ad_status.js

ad_status.js

254 ms

ZkUM7HQKzcKWL-DM3yo4WGnr3mDsumI-oijucI1qrYc.js

ZkUM7HQKzcKWL-DM3yo4WGnr3mDsumI-oijucI1qrYc.js

202 ms

embed.js

embed.js

95 ms

p.gif

p.gif

55 ms

KFOmCnqEu92Fr1Mu4mxP.ttf

KFOmCnqEu92Fr1Mu4mxP.ttf

24 ms

KFOlCnqEu92Fr1MmEU9fBBc9.ttf

KFOlCnqEu92Fr1MmEU9fBBc9.ttf

25 ms

id

id

39 ms

Accessibility Review

assayofficelondon.co.uk accessibility score

90

Accessibility Issues

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-*] attributes do not match their roles

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

assayofficelondon.co.uk 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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

assayofficelondon.co.uk SEO score

90

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

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

    EN

  • Encoding

    UTF-8

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

assayofficelondon.co.uk

Open Graph description is not detected on the main page of Assay Office London. 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: