Tools & Wizards About Us
zip-code-us.com screenshot

Report Summary

  • 18

    Performance

    Renders faster than
    34% of other websites

  • 85

    Accessibility

    Visual factors better than
    that of 58% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 98

    SEO

    Google-friendlier than
    92% of websites

zip-code-us.com

ZIP Code Lookup - United States of America - USA - States - ZIP-Directory - United States Postal Service

Page Load Speed

5.3 sec in total

First Response

592 ms

Resources Loaded

4.3 sec

Page Rendered

430 ms

zip-code-us.com screenshot

About Website

Welcome to zip-code-us.com homepage info - get ready to check ZIP Code Us best content right away, or after learning these important things about zip-code-us.com

ZIP-Directory from USA - Listed from Alabama to Wyoming.

Visit zip-code-us.com

Key Findings

We analyzed Zip-code-us.com page load time and found that the first response time was 592 ms and then it took 4.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster.

Performance Metrics

zip-code-us.com performance score

18

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.5 s

33/100

10%

LCP (Largest Contentful Paint)

Value4.6 s

34/100

25%

SI (Speed Index)

Value6.8 s

35/100

10%

TBT (Total Blocking Time)

Value2,630 ms

4/100

30%

CLS (Cumulative Layout Shift)

Value0.684

7/100

15%

TTI (Time to Interactive)

Value18.0 s

3/100

10%

Network Requests Diagram

zip-code-us.com

592 ms

zip-code-us.com

461 ms

www.zip-code-us.com

760 ms

bootstrap.min.css

120 ms

bootstrap-responsive.min.css

235 ms

Our browser made a total of 91 requests to load all elements on the main page. We found that 25% of them (23 requests) were addressed to the original Zip-code-us.com, 13% (12 requests) were made to Pagead2.googlesyndication.com and 12% (11 requests) were made to Bild.help.ch. The less responsive or slowest element that took the longest time to load (1.7 sec) relates to the external source Bild.help.ch.

Page Optimization Overview & Recommendations

Page size can be reduced by 69.4 kB (7%)

Content Size

1.0 MB

After Optimization

933.6 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Zip-code-us.com main page is 1.0 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. Only a small number of websites need less resources to load. Javascripts take 651.1 kB which makes up the majority of the site volume.

HTML Optimization

-79%

Potential reduce by 28.1 kB

  • Original 35.7 kB
  • After minification 30.2 kB
  • After compression 7.5 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 5.5 kB, which is 15% 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 28.1 kB or 79% of the original size.

Image Optimization

-1%

Potential reduce by 2.6 kB

  • Original 224.0 kB
  • After minification 221.3 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. ZIP Code Us images are well optimized though.

JavaScript Optimization

-6%

Potential reduce by 36.4 kB

  • Original 651.1 kB
  • After minification 651.1 kB
  • After compression 614.6 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

-2%

Potential reduce by 2.2 kB

  • Original 92.2 kB
  • After minification 92.2 kB
  • After compression 90.1 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. Zip-code-us.com has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 48 (62%)

Requests Now

78

After Optimization

30

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 78 CSS, Javascripts, AJAX and image requests in order to completely render the main page of ZIP Code Us. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 23 to 1 for JavaScripts and from 15 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

zip-code-us.com

zip-code-us.com

592 ms

zip-code-us.com

zip-code-us.com

461 ms

www.zip-code-us.com

www.zip-code-us.com

760 ms

bootstrap.min.css

bootstrap.min.css

120 ms

bootstrap-responsive.min.css

bootstrap-responsive.min.css

235 ms

general_foundicons.css

general_foundicons.css

339 ms

social_foundicons.css

social_foundicons.css

340 ms

font-awesome.min.css

font-awesome.min.css

346 ms

style.css

style.css

346 ms

camera.css

camera.css

348 ms

css

css

46 ms

css

css

62 ms

css

css

64 ms

css

css

68 ms

css

css

68 ms

css

css

68 ms

custom.css

custom.css

349 ms

js

js

89 ms

show_ads.js

show_ads.js

51 ms

adsbygoogle.js

adsbygoogle.js

111 ms

jquery.min.js

jquery.min.js

706 ms

bootstrap.min.js

bootstrap.min.js

462 ms

default.js

default.js

462 ms

help-ch-2024-logo-232px.png

help-ch-2024-logo-232px.png

1271 ms

scribble_light.png

scribble_light.png

134 ms

zip-code-us.png

zip-code-us.png

134 ms

btn_suchen.jpg

btn_suchen.jpg

133 ms

us-map.gif

us-map.gif

397 ms

logo_sadp_160px.jpg

logo_sadp_160px.jpg

353 ms

sm_facebook.png

sm_facebook.png

1270 ms

sm_x.png

sm_x.png

1270 ms

sm_instagram2.png

sm_instagram2.png

1270 ms

sm_linkedin.png

sm_linkedin.png

1269 ms

sm_youtube3.png

sm_youtube3.png

1269 ms

newslogo-nytimes.gif

newslogo-nytimes.gif

1709 ms

newslogo-skynews.gif

newslogo-skynews.gif

1710 ms

newslogo-mailonline.gif

newslogo-mailonline.gif

1708 ms

newslogo-wsj.gif

newslogo-wsj.gif

1708 ms

icon-close2021.gif

icon-close2021.gif

1708 ms

nUmCoSbwM94

nUmCoSbwM94

184 ms

postcard_bg.jpg

postcard_bg.jpg

810 ms

show_ads_impl.js

show_ads_impl.js

154 ms

pe0sMIuPIYBCpEV5eFdCBfe6.ttf

pe0sMIuPIYBCpEV5eFdCBfe6.ttf

89 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

569 ms

qFdW35GdgYR8EzR6oBLDHa3wyRf8W8eBM6XLOXLMrcGGow.ttf

qFdW35GdgYR8EzR6oBLDHa3wyRf8W8eBM6XLOXLMrcGGow.ttf

90 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsjZ0B4gaVc.ttf

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsjZ0B4gaVc.ttf

100 ms

6xK3dSBYKcSV-LCoeQqfX1RYOo3qOK7g.ttf

6xK3dSBYKcSV-LCoeQqfX1RYOo3qOK7g.ttf

115 ms

tactile_noise.png

tactile_noise.png

267 ms

general_foundicons.woff

general_foundicons.woff

479 ms

www-player.css

www-player.css

163 ms

www-embed-player.js

www-embed-player.js

195 ms

base.js

base.js

257 ms

zrt_lookup.html

zrt_lookup.html

355 ms

ads

ads

775 ms

ads

ads

732 ms

nUmCoSbwM94

nUmCoSbwM94

168 ms

ad_status.js

ad_status.js

297 ms

YpaxWjHVNNO6KZk05PsGAol2GFYfBj4WvF05Ro9VHVE.js

YpaxWjHVNNO6KZk05PsGAol2GFYfBj4WvF05Ro9VHVE.js

345 ms

embed.js

embed.js

156 ms

id

id

79 ms

KFOmCnqEu92Fr1Mu4mxP.ttf

KFOmCnqEu92Fr1Mu4mxP.ttf

46 ms

KFOlCnqEu92Fr1MmEU9fBBc9.ttf

KFOlCnqEu92Fr1MmEU9fBBc9.ttf

46 ms

error_handler.js

error_handler.js

99 ms

window_focus.js

window_focus.js

144 ms

qs_click_protection.js

qs_click_protection.js

150 ms

ufs_web_display.js

ufs_web_display.js

56 ms

pixel

pixel

41 ms

dv3.js

dv3.js

70 ms

gen_204

gen_204

532 ms

Create

Create

178 ms

pixel

pixel

510 ms

pixel

pixel

489 ms

15270969050934126990

15270969050934126990

634 ms

abg_lite.js

abg_lite.js

163 ms

omrhp.js

omrhp.js

493 ms

Q12zgMmT.js

Q12zgMmT.js

155 ms

icon.png

icon.png

155 ms

gen_204

gen_204

485 ms

ad

ad

472 ms

62bHydCX.html

62bHydCX.html

147 ms

rum

rum

188 ms

GenerateIT

GenerateIT

173 ms

skeleton.js

skeleton.js

218 ms

14943046239339414119

14943046239339414119

159 ms

K5ZpvUWNqcUfu8Tok0Ehe0tYmYGPee5Ma71PMEE9nfI.js

K5ZpvUWNqcUfu8Tok0Ehe0tYmYGPee5Ma71PMEE9nfI.js

38 ms

pixel

pixel

52 ms

activeview

activeview

93 ms

bounce

bounce

75 ms

rum

rum

55 ms

pixel

pixel

50 ms

activeview

activeview

115 ms

Accessibility Review

zip-code-us.com accessibility score

85

Accessibility Issues

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

[id] attributes on active, focusable elements are not unique

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

<frame> or <iframe> elements do not have a title

High

Form elements do not have associated labels

High

Links do not have a discernible name

Best Practices

zip-code-us.com 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

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

zip-code-us.com SEO score

98

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

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 Zip-code-us.com 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 Zip-code-us.com 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

zip-code-us.com

Open Graph description is not detected on the main page of ZIP Code Us. 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: