Century21.com - SEO Checker

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Overview of the SEO Check
Meta information
72% 
Page quality
59% 
Page structure
95% 
Link structure
76% 
Server
92% 
External factors
100% 
SEO Score
Response time
0.56 s
File size
99.70 kB
Words
1275
Media files
13
Number of links
127 internal / 15 external

Task list of SEO Improvements

Meta specifications

Title
(Critically important)
Residential Real Estate Listings - Homes for Sale by Real Estate Agents | CENTURY 21
The page title should be shorter than 580 pixels. It is 788 pixels long. Optimize title
There are word repetitions in the page title.
Meta description
(Critically important)
Use CENTURY 21 to find real estate property listings, houses for sale, real estate agents, and a mortgage calculator. We can assist you with buying or selling a home.
The meta description is too long: 1022 pixels from max. 1000 pixels. Optimize description
Crawlability
(Critically important)
There are no problems in accessing the website.
Canonical URL
(Important)
https://www.century21.com/
There is a valid canonical link specified.
Language
(Somewhat important)
Language detected in text: en
Language defined in HTML: en
Server location: United States of America
The following language is defined by HTML: en
Alternate/Hreflang Links
(Somewhat important)
There are no alternate links specified on this page.
Other meta tags
(Somewhat important)
There is no rel next meta tag on this page.
There is no rel prev meta tag on this page.
Domain
(Somewhat important)
The domain is no subdomain.
The domain length is good.
The domain does not contain non-latin characters.
Page URL
(Somewhat important)
No parameters were found in the URL.
No session ID was found in the URL.
The URL does not have too many subdirectories.
Charset encoding
(Somewhat important)
The charset encoding (UTF-8) is set correctly.
Doctype
(Nice to have)
The doctype HTML 5 is set correctly.
The doctype is placed at first in the HTML code.
Favicon
(Nice to have)
The favicon is linked correctly.

Meta tags

NameValue
viewportwidth=device-width,minimum-scale=1,initial-scale=1
apple-mobile-web-app-capableyes
theme-color#ffffff
msapplication-TileColor#ffc40d
msapplication-TileImage/build/assets/images/favicon/mstile-144x144.png
titleResidential Real Estate Listings - Homes for Sale by Real Estate Agents | CENTURY 21
descriptionUse CENTURY 21 to find real estate property listings, houses for sale, real estate agents, and a mortgage calculator. We can assist you with buying or selling a home.
keywordsreal estate, real estate agents, real estate listings, Century 21 properties, houses, mortgage, home sales, for sale, real estate agents, real estate, listings, search for homes, sell a house, buy a house, home buying tips, mortgage calculator, moving tips
langen
og:imagehttps://www.century21.com/build/assets/images/favicon/century21-og.png
charsetutf-8

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Page quality

Content
(Critically important)
Some words from the page title are not used within the pages content
Words from the H1 heading are not used in the page content.
This page contains 1275 words. That's ok.
29% of the text are stop words.
The page contains a listing, which indicates a good text layout.
9 paragraphs were found on this page.
No placeholders texts or images were found.
There are no duplicates on the site.
The average number of words per sentence of 20.12 words is good.
Frames
(Critically important)
This page does not use a frameset.
Mobile optimization
(Somewhat important)
A viewport "width=device-width,minimum-scale=1,initial-scale=1" is provided.
At least one Apple touch icon is specified.
Bold and strong tags
(Somewhat important)
Empty bold or strong tags were found on this page.
The following tag is repeated too often: become a my c21 member
Image SEO
(Somewhat important)
9 images have no alt attribute. The content of alt attributes is used by search engines.
Social Networks
(Nice to have)
There are only a few social sharing widgets on the page. Make your website popular in social networks with social sharing widgets.
Additional markup
(Nice to have)
No additional page markup was found.
HTTPS
(Somewhat important)
This website uses HTTPS to protect privacy and integrity of the exchanged data.
All included files are also transferred via HTTPS.

Media list

URLAlt attributeTitle
/build/assets/images/century21-logo.svgCENTURY 21
/build/assets/images/century21-logo.svgCENTURY 21
...ssets/images/homepage/nearby-markets.jpgNo alt attribute provided
...s/images/homepage/nearby-markets_mob.jpgNo alt attribute provided
.../assets/images/homepage/local-agents.jpgNo alt attribute provided
...ld/assets/images/homepage/c21_office.jpgNo alt attribute provided
/build/assets/images/century21-logo.svgCENTURY 21
/build/assets/images/ahs-logo-white-sm.pngAmerican Home Shield® Logo
...vg-icons/layout-nav-icon-saved-empty.svgNo alt attribute provided
...vg-icons/layout-nav-icon-saved-empty.svgNo alt attribute provided

Page structure

H1 heading
(Critically important)
Find a Home to Suit Your Lifestyle
The H1 heading is perfect.
Headings
(Important)
Some headings do not have any content.

Heading structure

Heading levelContent
H1 Find a Home to Suit Your Lifestyle
H2 What’s Happening in Your Area
H2 Find a homeHome Listings in Your Area
H2 Expand Your Horizons by Getting to Know Real Estate Markets Nearby
H2 CENTURY 21® BRANDLeading the Charge with Our Worldwide Standard
H2 NEVER SETTLELooking to Buy or Sell a Home?
H2 DON’T SETTLEFind a Local Real Estate Agent Today
H2 What Comes Next? You Tell Us.
H3 Empty heading
H3 Empty heading
H3 Empty heading
H3 Empty heading
H3 Luxury
H3 Commercial
H3 Global
H3 Español
H3 Home Sellers
H3 Home Buyers
H3 Popular Real Estate Markets
H3 Search By Popular States
Some internal links have dynamic parameters. All internal URLs, which are not marked as nofollow, should not contain dynamic parameters.
Some anchor texts are used more than once.
The number of internal links is ok.
None of the anchor texts is too long.
There are 15 external links on this page.

Found links on this page

LinkAttributesAnchor text
https://www.century21.com/Anchor Skip to main content
https://www.century21.com/IMG-ALT CENTURY 21
/property-searchProperty Search
/property-search-mapsearch homes by map
/real-estate-agentsC21 Agents in Your Area
/real-estate-agentssearch in another area
/calculators/affordabilityAffordability Calculator
/buyingadviceHome Buying Guide
/stories/agent-storiesAgent Stories
/contact/listapropertyList Your Home Today
/real-estate-agentsText duplicate C21 Agents in Your Area
/real-estate-agentsText duplicate search in another area
/sellingadvice/Selling Advice
/stories/agent-storiesText duplicate Agent Stories
/calculators/affordabilityText duplicate Affordability Calculator
/calculators/rentvsbuyRenting vs Buying Calculator
/calculators/mortgageMortgage Calculator
/calculators/amortizationAmortization Calculator
/calculators/refinanceRefinance Calculator
/buyingadvice/buying101/making...Making An Offer
/buyingadvice/lookingforahome/...How Much Can I Afford?
/buyingadvice/buying101/mortgageApplying For A Mortgage
/buyingadvice/buying101/making...Lease Options
/buyingadvice/buying101/making...All Cash
https://www.century21.com/careersCareers in Real Estate
/careers/how-we-support-youHow We Support You
/careers/contactReady to Chat?
/franchiseFranchise with C21
/franchise/brand-video-seriesSteps to Ownership
/franchise/contactExplore Franchising Opportunities
https://espanol.century21.com/External Subdomain Visit C21 In Español
https://commercial.century21.com/External Subdomain View Offices & Properties
https://finehomes.century21.com/External Subdomain Search Luxury Listings
https://www.century21global.com/External Subdomain Search International Listings
/real-estate-blog/Get Advice From Our Blog
/real-estate-agentsFind an Agent
/real-estate/atlanta-ga/LCGAAT...Atlanta, GA
/real-estate/austin-tx/LCTXAUS...Austin, TX
/real-estate/san-francisco-ca/...San Francisco, CA
/real-estate/los-angeles-ca/LC...Los Angeles, CA
/real-estate/dallas-tx/LCTXDAL...Dallas, TX
/real-estate/houston-tx/LCTXHO...Houston, TX
/real-estate/chicago-il/LCILCH...Chicago, IL
/real-estate/orlando-fl/LCFLOR...Orlando, FL
/real-estate/philadelphia-pa/L...Philadelphia, PA
/real-estate/phoenix-az/LCAZPH...Phoenix, AZ
/real-estate/boston-ma/LCMABOS...Boston, MA
/real-estate/miami-fl/LCFLMIAMI/Miami, FL
/real-estate/atlanta-ga/LCGAAT...Text duplicate Atlanta, GA
/real-estate/austin-tx/LCTXAUS...Text duplicate Austin, TX
/real-estate/san-francisco-ca/...Text duplicate San Francisco, CA
/real-estate/los-angeles-ca/LC...Text duplicate Los Angeles, CA
/real-estate/dallas-tx/LCTXDAL...Text duplicate Dallas, TX
/real-estate/houston-tx/LCTXHO...Text duplicate Houston, TX
/real-estate/chicago-il/LCILCH...Text duplicate Chicago, IL
/real-estate/orlando-fl/LCFLOR...Text duplicate Orlando, FL
/real-estate/philadelphia-pa/L...Text duplicate Philadelphia, PA
/real-estate/phoenix-az/LCAZPH...Text duplicate Phoenix, AZ
/real-estate/boston-ma/LCMABOS...Text duplicate Boston, MA
/real-estate/miami-fl/LCFLMIAMI/Text duplicate Miami, FL
/property-searchSearch in Another Area
https://finehomes.century21.com/External Subdomain Visit C21 Luxury
https://commercial.century21.com/External Subdomain Visit C21 Commercial
https://www.century21global.com/External Subdomain Visit C21 Global
https://espanol.century21.com/External Subdomain Visit C21 Español
/contact/listapropertySell a Home
/real-estate-agentsBuy a Home
/real-estate-agentsLocal Agents
/franchiseFranchise Ownership
https://www.century21.com/careersText duplicate Careers in Real Estate
/real-estate/atlanta-ga/LCGAAT...Atlanta Real Estate
/real-estate/los-angeles-ca/LC...Los Angeles Real Estate
/real-estate/chicago-il/LCILCH...Chicago Real Estate
/real-estate/phoenix-az/LCAZPH...Phoenix Real Estate
/real-estate/austin-tx/LCTXAUS...Austin Real Estate
/real-estate/dallas-tx/LCTXDAL...Dallas Real Estate
/real-estate/orlando-fl/LCFLOR...Orlando Real Estate
/real-estate/boston-ma/LCMABOS...Boston Real Estate
/real-estate/san-francisco-ca/...San Francisco Real Estate
/real-estate/houston-tx/LCTXHO...Houston Real Estate
/real-estate/philadelphia-pa/L...Philadelphia Real Estate
/real-estate/miami-fl/LCFLMIAMI/Miami Real Estate
/real-estate/manhattan-ny/LCNY...Manhattan Real Estate
/real-estate/las-vegas-nv/LCNV...Las Vegas Real Estate
/real-estate/denver-co/LCCODEN...Denver Real Estate
/property-search-map-Californi...California Real Estate
/property-search-map-New+York-SNYNew York Real Estate
/property-search-map-Ohio-SOHOhio Real Estate
/property-search-map-New+Jerse...New Jersey Real Estate
/property-search-map-Florida-SFLFlorida Real Estate
/property-search-map-Illinois-SILIllinois Real Estate
/property-search-map-Georgia-SGAGeorgia Real Estate
/property-search-map-Virginia-SVAVirginia Real Estate
/property-search-map-Texas-STXTexas Real Estate
/property-search-map-Pennsylva...Pennsylvania Real Estate
/property-search-map-North+Car...North Carolina Real Estate
/property-search-map-Utah-SUTUtah Real Estate
/property-search-map-Colorado-SCOColorado Real Estate
/property-search-map-Arizona-SAZArizona Real Estate
/property-search-map-Hawaii-SHIHawaii Real Estate
https://www.century21.com/Anchor General
/about-us/contactContact Us
/about-us/about/faqs/buying-an...FAQs
https://www.century21.com/sitemapSitemap
/about-us/legal/fraudalertFraud Alert
https://www.century21.com/Anchor Resources
/home-selling-adviceHome Seller Resources
/home-buying-adviceHome Buyer Resources
/glossaryReal Estate Glossary
/calculators/home-mortgageMortgage Calculators
https://www.century21.com/Anchor About C21
/about-us/about/company-profileCompany Profile
/about-us/aboutAbout Us
/about-us/newsroomIn the News
/about-us/about/philanthropyPhilanthropy
/real-estate-blogBlog
https://www.century21.com/Anchor Join C21
/franchise/brand-video-seriesWhy C21?
https://www.century21.com/careersReal Estate Careers
/franchiseFranchise
https://www.facebook.com/pages...New window External Subdomain Facebook
https://instagram.com/century21New window External Instagram
https://twitter.com/Century21New window External X
https://www.youtube.com/century21New window External Subdomain YouTube
https://submit-irm.trustarc.co...New window External Subdomain Do Not Sell or Share My Personal Information
https://privacy.anywhere.re/gl...New window External Subdomain Privacy Notice
/about-us/legal/termsTerms & Conditions
/about-us/accessibility-statementAccessibility Statement
/sites/default/files/2022-07/n...Subdomain NY Reasonable Accommodations Notice
/about-us/legal/fair-housing-s...Fair Housing Act
/about-us/legal/dmca-noticeDMCA Notice
https://www.century21.com/localeUnited States (English)
https://www.ahshome.com/?utm_s...New window External Subdomain Learn more!
https://www.century21.com/myc21Welcome to My CENTURY 21®
https://www.century21.com/myc21See All Your Saved Items
https://www.century21.com/myc21Text duplicate See All Your Saved Items
/myc21/create-accountJoin
/myc21?return=/Sign In
https://www.century21.com/myc21See All Your Saved Searches
https://www.century21.com/myc21Text duplicate See All Your Saved Searches
/myc21/create-accountText duplicate Join
/myc21?return=/Text duplicate Sign In

Server configuration

HTTP redirects
(Critically important)
This page redirects to "https://www.century21.com/"
HTTP header
(Important)
No X-Powered HTTP header is sent.
The web server transmits the web page (HTML) in compressed form.
Performance
(Somewhat important)
The page response time of 0.56 seconds is longer than the recommended limit of 0.4 seconds. A high response time unnecessarily slows down search engine crawling and results in bad user experience as well.
The file size of the HTML document is fine (100 kB).

HTTP Response Header

NameValue
content-typetext/html; charset=UTF-8
content-length16873
x-content-type-optionsnosniff
strict-transport-securitymax-age=31536000; includeSubDomains
cache-controlmax-age=3600, public
varyAccept-Encoding
content-encodinggzip
x-server-infoproduction-web-1
origin-agent-cluster?0
x-conf-incrr
dateSat, 26 Jul 2025 14:44:03 GMT
alt-svch3=":443"; ma=93600
statuscode200
http_versionHTTP/2

External factors

This website has excellent links from other websites.
This page has backlinks from 1,448 referring domains.
This page has 61,201 backlinks.
This page has backlinks from 865 different ip addresses.

Links from Wikipedia

No links from Wikipedia were found.

Robots.txt

# Yandex bot
User-agent: Yandex
Disallow: /

User-agent: *
Disallow: /21online
Disallow: /RfgClientSupportFiles
Disallow: /for-sale-homes/*
Sitemap: https://www.century21.com/c21sitemaps/sitemapc21listings-today.xml
Sitemap: https://www.century21.com/c21sitemaps/sitemapc21listings-thisweek.xml
Sitemap: https://www.century21.com/c21sitemaps/sitemapc21listings-older.xml
Sitemap: https://www.century21.com/c21sitemaps/sitemapc21listings-mucholder.xml
Sitemap: https://www.century21.com/c21sitemaps/sitemapc21thirdpartylistings-today.xml
Sitemap: https://www.century21.com/c21sitemaps/sitemapc21thirdpartylistings-thisweek.xml
Sitemap: https://www.century21.com/c21sitemaps/sitemapc21thirdpartylistings-older.xml
Sitemap: https://www.century21.com/c21sitemaps/sitemapc21thirdpartylistings-mucholder.xml
Sitemap: https://www.century21.com/c21sitemaps/sitemapc21other.xml

Similar sites

Search preview

www.century21.com
Residential Real Estate Listings - Homes for Sale by Real Estate Ag...
Use CENTURY 21 to find real estate property listings, houses for sale, real estate agents, and a mortgage calculator. We can assist you with buying or selling a home.

Most important keywords

Following keywords were found. You can check the keyword optimization of this page for each keyword.

KeywordResultRecheck
CENTURY 2179%Check
CENTURY76%Check
CENTURY 21 Real74%Check
CENTURY 21 Real Estate72%Check
agents CENTURY 2169%Check
Estate Listings68%Check
Real Estate Listings67%Check
Real66%Check
Estate66%Check
Real Estate66%Check
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