Tools & Wizards About Us
postcoder.com screenshot

Report Summary

  • 81

    Performance

    Renders faster than
    87% of other websites

  • 97

    Accessibility

    Visual factors better than
    that of 92% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    81% of websites

  • 100

    SEO

    Google-friendlier than
    95% of websites

postcoder.com

Address Lookup, Rooftop Geo, Bank, Mobile & Email Validation - Postcoder

Page Load Speed

5.6 sec in total

First Response

327 ms

Resources Loaded

5 sec

Page Rendered

225 ms

postcoder.com screenshot

About Website

Visit postcoder.com now to see the best up-to-date Postcoder content for United Kingdom and also check out these interesting facts you probably never knew about postcoder.com

Postcoder is the API for address lookup & form validation. Improve your conversion rates and capture better quality customer data.

Visit postcoder.com

Key Findings

We analyzed Postcoder.com page load time and found that the first response time was 327 ms and then it took 5.2 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.

Performance Metrics

postcoder.com performance score

81

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.5 s

69/100

10%

LCP (Largest Contentful Paint)

Value4.2 s

45/100

25%

SI (Speed Index)

Value2.8 s

95/100

10%

TBT (Total Blocking Time)

Value100 ms

98/100

30%

CLS (Cumulative Layout Shift)

Value0.002

100/100

15%

TTI (Time to Interactive)

Value3.6 s

91/100

10%

Network Requests Diagram

www.alliescomputing.com

327 ms

www.alliescomputing.com

855 ms

css

73 ms

font-awesome.min.css

55 ms

c8b4bf4e3393ec4093fe0100a638d868.css

169 ms

Our browser made a total of 54 requests to load all elements on the main page. We found that 0% of them (0 request) were addressed to the original Postcoder.com, 11% (6 requests) were made to Static.olark.com and 7% (4 requests) were made to Alliescomputing.com. The less responsive or slowest element that took the longest time to load (855 ms) relates to the external source Alliescomputing.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 407.4 kB (59%)

Content Size

691.6 kB

After Optimization

284.1 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Postcoder.com main page is 691.6 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 241.2 kB which makes up the majority of the site volume.

HTML Optimization

-76%

Potential reduce by 39.2 kB

  • Original 51.9 kB
  • After minification 49.8 kB
  • After compression 12.7 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 39.2 kB or 76% of the original size.

Image Optimization

-5%

Potential reduce by 7.3 kB

  • Original 159.2 kB
  • After minification 151.9 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. Postcoder images are well optimized though.

JavaScript Optimization

-65%

Potential reduce by 156.1 kB

  • Original 241.2 kB
  • After minification 241.1 kB
  • After compression 85.0 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 156.1 kB or 65% of the original size.

CSS Optimization

-86%

Potential reduce by 204.8 kB

  • Original 239.3 kB
  • After minification 236.4 kB
  • After compression 34.6 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. Postcoder.com needs all CSS files to be minified and compressed as it can save up to 204.8 kB or 86% of the original size.

Requests Breakdown

Number of requests can be reduced by 19 (40%)

Requests Now

47

After Optimization

28

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 47 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Postcoder. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 17 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

www.alliescomputing.com

www.alliescomputing.com

327 ms

www.alliescomputing.com

www.alliescomputing.com

855 ms

css

css

73 ms

font-awesome.min.css

font-awesome.min.css

55 ms

c8b4bf4e3393ec4093fe0100a638d868.css

c8b4bf4e3393ec4093fe0100a638d868.css

169 ms

jquery.min.js

jquery.min.js

92 ms

b1e815400dcbe6e34a3e9d982c7d746b.js

b1e815400dcbe6e34a3e9d982c7d746b.js

673 ms

70a91c651073d92f966f11c65e9dd4b4.js

70a91c651073d92f966f11c65e9dd4b4.js

553 ms

b111a903f4f342b84b65b37630fc7edf.css

b111a903f4f342b84b65b37630fc7edf.css

606 ms

wow.min.js

wow.min.js

545 ms

conversion.js

conversion.js

66 ms

b4f0865d4add0fe0162459aabe15a36f.js

b4f0865d4add0fe0162459aabe15a36f.js

558 ms

ga.js

ga.js

73 ms

__utm.gif

__utm.gif

13 ms

collect

collect

57 ms

prum.min.js

prum.min.js

94 ms

homepage-lookup.png

homepage-lookup.png

536 ms

ikea.png

ikea.png

122 ms

post-office.png

post-office.png

122 ms

bhf.png

bhf.png

397 ms

ejaf.png

ejaf.png

367 ms

nhs.png

nhs.png

120 ms

tribal.png

tribal.png

212 ms

rm.png

rm.png

504 ms

os.png

os.png

486 ms

ons.png

ons.png

321 ms

nrs.png

nrs.png

429 ms

osni.png

osni.png

463 ms

eircode.png

eircode.png

495 ms

usps.png

usps.png

815 ms

gbgl.png

gbgl.png

559 ms

iip_logo_footer_208.png

iip_logo_footer_208.png

580 ms

logo-worldaddresses-web.png

logo-worldaddresses-web.png

588 ms

homepage-header.png

homepage-header.png

177 ms

allies-logo.svg

allies-logo.svg

595 ms

67 ms

cJZKeOuBrn4kERxqtaUH3aCWcynf_cDxXwCLxiixG1c.ttf

cJZKeOuBrn4kERxqtaUH3aCWcynf_cDxXwCLxiixG1c.ttf

99 ms

k3k702ZOKiLJc3WVjuplzInF5uFdDttMLvmWuJdhhgs.ttf

k3k702ZOKiLJc3WVjuplzInF5uFdDttMLvmWuJdhhgs.ttf

110 ms

loader0.js

loader0.js

164 ms

time.php

time.php

201 ms

hotjar-11200.js

hotjar-11200.js

213 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

7 ms

35 ms

8709-503-10-8745.js

8709-503-10-8745.js

28 ms

c

c

237 ms

modules-043c1e6abe660c48857202e419ff9d8a.js

modules-043c1e6abe660c48857202e419ff9d8a.js

36 ms

visit-data

visit-data

208 ms

application2.js

application2.js

106 ms

beacon.gif

beacon.gif

391 ms

storage.html

storage.html

27 ms

storage.js

storage.js

27 ms

visits

visits

230 ms

jquery.js

jquery.js

31 ms

g

g

302 ms

Accessibility Review

postcoder.com accessibility score

97

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

postcoder.com 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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

postcoder.com 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

    N/A

  • Encoding

    ISO-8859-1

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Postcoder.com 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 Postcoder.com main page’s claimed encoding is iso-8859-1. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

postcoder.com

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