Report Summary

  • 33

    Performance

    Renders faster than
    53% of other websites

  • 70

    Accessibility

    Visual factors better than
    that of 35% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 83

    SEO

    Google-friendlier than
    46% of websites

screwsline.co.uk

Screwsline - Specialists in new & vintage brass, chrome, steel and stainless slotted wood screws, nuts, bolts, washers, ironmongery & more

Page Load Speed

3.1 sec in total

First Response

218 ms

Resources Loaded

2.8 sec

Page Rendered

126 ms

screwsline.co.uk screenshot

About Website

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

The UK's 1st Screwmonger specialising in new, old & antique slotted wood screws, nuts, bolts, washers & ironmongery in brass, steel, stainless & chrome

Visit screwsline.co.uk

Key Findings

We analyzed Screwsline.co.uk page load time and found that the first response time was 218 ms and then it took 2.9 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

screwsline.co.uk performance score

33

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.9 s

11/100

10%

LCP (Largest Contentful Paint)

Value12.8 s

0/100

25%

SI (Speed Index)

Value7.4 s

27/100

10%

TBT (Total Blocking Time)

Value740 ms

40/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value11.4 s

19/100

10%

Network Requests Diagram

screwsline.co.uk

218 ms

www.screwsline.co.uk

445 ms

gtm.js

94 ms

analytics.js

47 ms

bat.js

85 ms

Our browser made a total of 54 requests to load all elements on the main page. We found that 74% of them (40 requests) were addressed to the original Screwsline.co.uk, 4% (2 requests) were made to Googletagmanager.com and 4% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (820 ms) belongs to the original domain Screwsline.co.uk.

Page Optimization Overview & Recommendations

Page size can be reduced by 27.5 kB (10%)

Content Size

279.7 kB

After Optimization

252.2 kB

In fact, the total size of Screwsline.co.uk main page is 279.7 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. 50% of websites need less resources to load. Images take 210.4 kB which makes up the majority of the site volume.

HTML Optimization

-78%

Potential reduce by 26.2 kB

  • Original 33.8 kB
  • After minification 31.8 kB
  • After compression 7.6 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 26.2 kB or 78% of the original size.

Image Optimization

-1%

Potential reduce by 1.3 kB

  • Original 210.4 kB
  • After minification 209.1 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. Screwsline images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 50 B

  • Original 35.6 kB
  • After minification 35.6 kB
  • After compression 35.5 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. This website has mostly compressed JavaScripts.

Requests Breakdown

Number of requests can be reduced by 20 (44%)

Requests Now

45

After Optimization

25

The browser has sent 45 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Screwsline. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 16 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

screwsline.co.uk accessibility score

70

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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

screwsline.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

SEO Factors

screwsline.co.uk SEO score

83

Search Engine Optimization Advices

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

Links are not crawlable

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

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 Screwsline.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 Screwsline.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

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