40.3 sec in total
1.2 sec
33.7 sec
5.5 sec
Welcome to zip4.usps.com homepage info - get ready to check ZIP 4 USPS best content for United States right away, or after learning these important things about zip4.usps.com
Look up ZIP Codes™ by street address, city, and state. OR you can find ZIP Codes within a city and state.
Visit zip4.usps.comWe analyzed Zip4.usps.com page load time and found that the first response time was 1.2 sec and then it took 39.2 sec to load all DOM resources and completely render a web page. This is an excellent result, as only a small number of websites can load faster.
zip4.usps.com performance score
name
value
score
weighting
Value2.5 s
67/100
10%
Value6.6 s
8/100
25%
Value3.8 s
84/100
10%
Value7,760 ms
0/100
30%
Value0.003
100/100
15%
Value17.3 s
4/100
10%
1156 ms
674 ms
837 ms
1003 ms
1003 ms
Our browser made a total of 98 requests to load all elements on the main page. We found that 0% of them (0 request) were addressed to the original Zip4.usps.com, 17% (17 requests) were made to Usps.com and 6% (6 requests) were made to Gateway.foresee.com. The less responsive or slowest element that took the longest time to load (3.2 sec) relates to the external source Tools.usps.com.
Page size can be reduced by 1.5 MB (69%)
2.2 MB
669.6 kB
In fact, the total size of Zip4.usps.com main page is 2.2 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. 75% 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. Javascripts take 1.5 MB which makes up the majority of the site volume.
Potential reduce by 97.3 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 18.4 kB, which is 16% 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 97.3 kB or 83% of the original size.
Potential reduce by 75.6 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, ZIP 4 USPS needs image optimization as it can save up to 75.6 kB or 43% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 1.0 MB
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 1.0 MB or 68% of the original size.
Potential reduce by 284.4 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. Zip4.usps.com needs all CSS files to be minified and compressed as it can save up to 284.4 kB or 84% of the original size.
Number of requests can be reduced by 58 (61%)
95
37
The browser has sent 95 CSS, Javascripts, AJAX and image requests in order to completely render the main page of ZIP 4 USPS. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 37 to 1 for JavaScripts and from 13 to 1 for CSS and as a result speed up the page load time.
ZipLookupAction!input.action
1156 ms
usps.css
674 ms
quicktools.css
837 ms
modal-fluid.css
1003 ms
tables.css
1003 ms
tools.css
1052 ms
tab-category.css
1113 ms
zip-lookup.css
1112 ms
OneLinkUsps.js
1073 ms
usps-elements.css
1136 ms
utility-header.css
1200 ms
require.js
1136 ms
login.js
1200 ms
jquery.min.js
1135 ms
modernizr.js
1070 ms
easy-autocomplete.min.css
2627 ms
header-init-search.js
2627 ms
component-guide-init-search-alt.js
2628 ms
main-sb.css
2627 ms
footer-sb.css
2627 ms
quicktools-api.jsp
2804 ms
ssbw.js
2807 ms
dojo.js
2447 ms
ziplookup.js
2628 ms
webtrends.js
2628 ms
usps-validation.js
2628 ms
usps-tools-validation.js
2627 ms
zip-code-lookup.js
2627 ms
wt_ad_metrics_deferredloader.js
2627 ms
hdr_bkg.png
1807 ms
logo-sb.svg
1895 ms
close_x.svg
2068 ms
social-facebook_1.png
2069 ms
social-twitter_2.png
2069 ms
social-pinterest_6.png
2069 ms
social-youtube_3.png
2253 ms
utility_languages.png
1513 ms
m_dropdown_carat_grey.svg
1448 ms
chinese_characters.gif
1513 ms
utility_customer_service.png
1495 ms
utility_myusps.png
1512 ms
search.svg
1512 ms
tracking.svg
451 ms
my_usps.svg
1579 ms
location.svg
1515 ms
stamps.svg
1682 ms
schedule_pickup.svg
1559 ms
calculate_price.svg
1679 ms
find_zip.svg
1681 ms
holdmail.svg
1754 ms
change_address.svg
1808 ms
po_box.svg
1889 ms
free_boxes.svg
1855 ms
hm_bg_gradient_1px.gif
105 ms
footer_shadows_1-l.gif
251 ms
caps-sprite.png
206 ms
bg_left_cap.gif
207 ms
require-jquery.js
279 ms
helpers.js
645 ms
search-fe.js
548 ms
require-jquery.js
345 ms
jquery.easy-autocomplete.min.alt.js
343 ms
search.js
343 ms
search_metrics.js
330 ms
ad-select.jsp
469 ms
jquery.min.js
285 ms
pay-print-ship-promo.png
690 ms
resize-manager.js
22 ms
25e09910-ffc3-4fc4-b0d1-db9a95dface8.svg
450 ms
d5af76d8-a90b-4527-b3a3-182207cc3250.woff
449 ms
58ab5075-53ea-46e6-9783-cbb335665f88.svg
449 ms
trackingCode.js
621 ms
logo-mini-sb.png
234 ms
gtm.js
1643 ms
blank.gif
3189 ms
QTApiAction_input
3204 ms
blank.gif
1848 ms
crt_rem_trans_dot_ani_whiteback.gif
1820 ms
gry_hdr_tall_sprite.png
1789 ms
nav_tabs.gif
1820 ms
text-box.gif
1818 ms
dd_sprite.gif
1819 ms
btn_sprite.png
1819 ms
analytics.js
1274 ms
Universal-Federated-Analytics-Min.js
1809 ms
gateway.min.js
1384 ms
collect
424 ms
qt.css
195 ms
collect
1076 ms
collect
561 ms
hdr_icons_roll.gif
1004 ms
hdr_sm_pipe.gif
644 ms
fs.utils.js
682 ms
fs.trigger.js
1230 ms
fs.record.js
2421 ms
fs.feedback.js
2415 ms
fs.survey.js
2415 ms
collect
1825 ms
zip4.usps.com accessibility score
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
Elements with an ARIA [role] that require children to contain a specific [role] are missing some or all of those required children.
[role]s are not contained by their required parent element
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
Links do not have a discernible name
Tables and lists
These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.
Impact
Issue
List items (<li>) are not contained within <ul> or <ol> parent elements.
zip4.usps.com best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Includes front-end JavaScript libraries with known security vulnerabilities
Ensure CSP is effective against XSS attacks
General
Impact
Issue
Detected JavaScript libraries
Browser errors were logged to the console
Page has valid source maps
zip4.usps.com SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
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
Document uses legible font sizes
Tap targets are not sized appropriately
EN
N/A
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Zip4.usps.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 Zip4.usps.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.
zip4.usps.com
Open Graph description is not detected on the main page of ZIP 4 USPS. 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: