Tools & Wizards About Us
century21professional.com screenshot

Report Summary

  • 17

    Performance

    Renders faster than
    32% of other websites

  • 68

    Accessibility

    Visual factors better than
    that of 33% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 89

    SEO

    Google-friendlier than
    66% of websites

century21professional.com

Century 21 Real Estate — CENTURY 21 Professional Realty

Page Load Speed

24 sec in total

First Response

62 ms

Resources Loaded

23.5 sec

Page Rendered

398 ms

century21professional.com screenshot

About Website

Welcome to century21professional.com homepage info - get ready to check Century 21 Professional best content right away, or after learning these important things about century21professional.com

CENTURY 21 Professional Realty offers the latest real estate listings. Browse homes for sale, view photos, and connect with a local real estate agent.

Visit century21professional.com

Key Findings

We analyzed Century21professional.com page load time and found that the first response time was 62 ms and then it took 23.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 95% of websites can load faster. Unfortunately, there was 1 request timeout, which can generally increase the web page load time, as the browser stays idle while waiting for website response.

Performance Metrics

century21professional.com performance score

17

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.4 s

17/100

10%

LCP (Largest Contentful Paint)

Value18.4 s

0/100

25%

SI (Speed Index)

Value11.3 s

5/100

10%

TBT (Total Blocking Time)

Value8,190 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.007

100/100

15%

TTI (Time to Interactive)

Value23.3 s

1/100

10%

Network Requests Diagram

century21professional.com

62 ms

century-21-professional-realty-5981c

779 ms

zaplabs-common.js

134 ms

zaplabs-common.js

251 ms

zaplabs-common.js

567 ms

Our browser made a total of 63 requests to load all elements on the main page. We found that 2% of them (1 request) were addressed to the original Century21professional.com, 17% (11 requests) were made to Images.static-century21.com and 13% (8 requests) were made to Css.static-century21.com. The less responsive or slowest element that took the longest time to load (20 sec) relates to the external source Px.ads.linkedin.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 88.0 kB (18%)

Content Size

502.3 kB

After Optimization

414.3 kB

  • Images
  • JavaScript
  • CSS

In fact, the total size of Century21professional.com main page is 502.3 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. 70% of websites need less resources to load. Images take 255.3 kB which makes up the majority of the site volume.

HTML Optimization

-0%

Potential reduce by -8 B

  • Original 0 B

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 web page is already compressed.

Image Optimization

-6%

Potential reduce by 14.1 kB

  • Original 255.3 kB
  • After minification 241.2 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. Century 21 Professional images are well optimized though.

JavaScript Optimization

-4%

Potential reduce by 3.6 kB

  • Original 102.2 kB
  • After minification 102.2 kB
  • After compression 98.6 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

-49%

Potential reduce by 70.3 kB

  • Original 144.8 kB
  • After minification 144.8 kB
  • After compression 74.5 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. Century21professional.com needs all CSS files to be minified and compressed as it can save up to 70.3 kB or 49% of the original size.

Requests Breakdown

Number of requests can be reduced by 29 (55%)

Requests Now

53

After Optimization

24

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 53 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Century 21 Professional. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 20 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

century21professional.com

century21professional.com

62 ms

century-21-professional-realty-5981c

century-21-professional-realty-5981c

779 ms

zaplabs-common.js

zaplabs-common.js

134 ms

zaplabs-common.js

zaplabs-common.js

251 ms

zaplabs-common.js

zaplabs-common.js

567 ms

global-all.css

global-all.css

264 ms

theme_c21.css

theme_c21.css

305 ms

js

js

194 ms

splitioRunner.min.js

splitioRunner.min.js

267 ms

ccm_gtm_event.js

ccm_gtm_event.js

257 ms

notice

notice

247 ms

global.min.js

global.min.js

561 ms

analytics.js

analytics.js

509 ms

fbevents.js

fbevents.js

549 ms

insight.min.js

insight.min.js

705 ms

4753858389

4753858389

747 ms

splitChanges

splitChanges

2091 ms

3806160_P00.jpg

3806160_P00.jpg

2091 ms

medium.jpeg

medium.jpeg

2390 ms

apple_app_store.png

apple_app_store.png

2242 ms

en_app_rgb_wo_45.png

en_app_rgb_wo_45.png

2241 ms

mobile.png

mobile.png

2241 ms

Gold_Left_Aligned_Logo172x68.png

Gold_Left_Aligned_Logo172x68.png

2201 ms

ahs-logo-white-rgb.png

ahs-logo-white-rgb.png

375 ms

3805517_P00.jpg

3805517_P00.jpg

2093 ms

3800854_P00.jpg

3800854_P00.jpg

2087 ms

3796844_P00.jpg

3796844_P00.jpg

2088 ms

3791621_P00.jpg

3791621_P00.jpg

2088 ms

3791174_P00.jpg

3791174_P00.jpg

2162 ms

3746968_P00.jpg

3746968_P00.jpg

2351 ms

conversion_async.js

conversion_async.js

2171 ms

oakes-regular.woff

oakes-regular.woff

1862 ms

oakes-bold.woff

oakes-bold.woff

1859 ms

cover_photo.jpg

cover_photo.jpg

3018 ms

625197678005881

625197678005881

1646 ms

zip-icons.woff

zip-icons.woff

1884 ms

local-insights

local-insights

1555 ms

Typold-Regular.woff

Typold-Regular.woff

1893 ms

Typold-Book500.woff

Typold-Book500.woff

1872 ms

logo-seal-clipped.svg

logo-seal-clipped.svg

1532 ms

phone.svg

phone.svg

1518 ms

social-facebook.svg

social-facebook.svg

1629 ms

social-twitter.svg

social-twitter.svg

1666 ms

social-youtube.svg

social-youtube.svg

1665 ms

social-instagram.svg

social-instagram.svg

1793 ms

4753858389

4753858389

1485 ms

collect

collect

1411 ms

collect

collect

1520 ms

gpt.js

gpt.js

1846 ms

zaplabs-common.js

zaplabs-common.js

448 ms

yahoo-dom-event.js

yahoo-dom-event.js

218 ms

ziprealty-core.js

ziprealty-core.js

217 ms

363 ms

collect

collect

19959 ms

splitChanges

splitChanges

193 ms

446 ms

396 ms

394 ms

pubads_impl_2022100402.js

pubads_impl_2022100402.js

755 ms

ppub_config

ppub_config

824 ms

80 ms

79 ms

21 ms

Accessibility Review

century21professional.com accessibility score

68

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

High

[role]s do not have all required [aria-*] attributes

High

ARIA IDs 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

Buttons do not have an accessible name

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

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

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

High

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

Best Practices

century21professional.com best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Displays images with incorrect aspect ratio

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

SEO Factors

century21professional.com SEO score

89

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

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

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Century21professional.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 Century21professional.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

century21professional.com

Open Graph description is not detected on the main page of Century 21 Professional. 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: