Wonder.cdc.gov - SEO Checker

Sign up for free! PDF Export
Overview of the SEO Check
Meta information
84% 
Page quality
62% 
Page structure
94% 
Link structure
70% 
Server
1% 
External factors
100% 
SEO Score
Response time
1.67 s
File size
234.10 kB
Words
422
Media files
27
Number of links
46 internal / 41 external

Task list of SEO Improvements

Meta specifications

Title
(Critically important)
CDC WONDER
The page title is too short. (143 pixels of 580 max pixel length) Optimize title
There are no duplicate words in the title
Meta description
(Critically important)
CDC WONDER is a system for disseminating Public Health data and information
The length of the meta description is perfect. (498 pixels out of 1000 max pixel length)
Crawlability
(Critically important)
There are no problems in accessing the website.
Canonical URL
(Important)
No canonical link is 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 character encoding is not specified.
The character encoding is not specified in the HTTP header.
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, initial-scale=1, shrink-to-fit=no
mobile-web-app-capableyes
apple-mobile-web-app-capableyes
keywordsCDC WONDER Public Health Query, CDC/ATSDR Scientific Data Repository
descriptionCDC WONDER is a system for disseminating Public Health data and information
langen
X-UA-CompatibleIE=Edge
charsetutf-8

Test up to 1.000 webpages of wonder.cdc.gov with our free plan!

Try For Free
No trial. It's just free!

Page quality

Content
(Critically important)
There are only 422 words on this page. Good pages should have about 800 words of useful content.
19.4% of the text are stop words.
The page contains a listing, which indicates a good text layout.
4 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 17 words is good.
Frames
(Critically important)
This page does not use a frameset.
Mobile optimization
(Somewhat important)
No Apple touch icon is specified.
This page loads 15 JavaScript files. This may affect the load time negatively.
A viewport "width=device-width, initial-scale=1, shrink-to-fit=no" is provided.
Bold and strong tags
(Somewhat important)
The usage of strong and bold tags is perfect. We recommend the use of up to 8 tags for this page.
Image SEO
(Somewhat important)
1 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
https://wonder.cdc.gov/images/tri-right.gifnumerical data available
https://wonder.cdc.gov/images/tri-right.gifnumerical data available
https://wonder.cdc.gov/images/tri-right.gifnumerical data available
https://wonder.cdc.gov/images/tri-right.gifnumerical data available
https://wonder.cdc.gov/images/tri-right.gifnumerical data available
https://wonder.cdc.gov/images/tri-right.gifnumerical data available
https://wonder.cdc.gov/images/tri-right.gifnumerical data available
https://wonder.cdc.gov/images/tri-right.gifnumerical data available
https://wonder.cdc.gov/images/tri-right.gifnumerical data available
https://wonder.cdc.gov/images/tri-right.gifnumerical data available
https://wonder.cdc.gov/images/tri-right.gifnumerical data available
https://wonder.cdc.gov/images/tri-right.gifnumerical data available
https://wonder.cdc.gov/images/tri-right.gifnumerical data available
https://wonder.cdc.gov/images/tri-right.gifnumerical data available
https://wonder.cdc.gov/images/tri-right.gifnumerical data available
https://wonder.cdc.gov/images/tri-right.gifnumerical data available
https://wonder.cdc.gov/images/tri-right.gifnumerical data available
https://wonder.cdc.gov/images/tri-right.gifnumerical data available
https://wonder.cdc.gov/images/tri-right.gifnumerical data available
https://wonder.cdc.gov/images/tri-right.gifnumerical data available
https://wonder.cdc.gov/images/tri-right.gifnumerical data available
https://wonder.cdc.gov/images/tri-right.gifnumerical data available
https://wonder.cdc.gov/images/tri-right.gifnumerical data available
https://wonder.cdc.gov/images/tri-right.gifnumerical data available
https://wonder.cdc.gov/images/tri-right.gifnumerical data available
https://wonder.cdc.gov/images/tri-right.gifnumerical data available
https://wonder.cdc.gov/images/tri-right.gifNo alt attribute provided

Page structure

H1 heading
(Critically important)
CDC WONDER
The H1 heading is too short (10 characters). It should be at least 20 Characters long.
Headings
(Important)
The heading structure is perfect.

Heading structure

Heading levelContent
H1 CDC WONDER
H2 WONDER Online Databases
H2 National Notifiable Conditions
H2 Other Query Systems
H3 Deaths:
H3 Environment:
H3 Population:
H4 All Ages:
H4 Exit Notification/Disclaimer Policy
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 too many external links (41) on this page.

Found links on this page

LinkAttributesAnchor text
https://wonder.cdc.gov/Anchor Skip directly to site content
https://wonder.cdc.gov/Anchor Skip directly to page options
https://wonder.cdc.gov/Anchor Skip directly to A-Z link
https://wonder.cdc.gov/Anchor Text duplicate Skip directly to A-Z link
https://wonder.cdc.gov/Anchor Text duplicate Skip directly to A-Z link
https://www.cdc.gov/External Subdomain Centers for Disease Control and Prevention. CDC twenty four seven. Saving Lives, Protecting People Centers for Disease Control and Prevention. CDC twenty fou...
https://www.cdc.gov/az/External Subdomain A-Z Index
https://wonder.cdc.gov/CDC WONDER
/wonder/help/faq.htmlFAQs
/wonder/help/main.htmlHelp
/controller/datarequest?stage=...Contact Us
/controller/datarequest?stage=...WONDER Search
https://api.addthis.com/oexcha...New window External Subdomain Facebook
https://api.addthis.com/oexcha...New window External Subdomain Twitter
https://api.addthis.com/oexcha...New window External Subdomain LinkedIn
https://api.addthis.com/oexcha...New window External Subdomain Email
https://tools.cdc.gov/medialib...New window External Subdomain Anchor Syndicate
/WelcomeT.htmlTopics
A-TITLE Health related applications and documentation hosted by various sources, sorted by topic
/WelcomeA.htmlText duplicate A-Z Index
A-TITLE Health related applications and documentation hosted by various sources, sorted alphabetically
/AIDSPublic.htmlAIDS Public Use Data
A-TITLE HIV/AIDS Reporting System case reports for years 1981-2002
/natality.htmlBirths
A-TITLE Natality: birth certificate data for years 1995 through last month
/cancer.htmlCancer Statistics
A-TITLE Cancer registry case reports of invasive cancer incidence, and cancer deaths for years 1999-2021
/Deaths-by-Underlying-Cause.htmlUnderlying Cause of Death
A-TITLE Underlying cause of death from death certificates for years 1999-2022 (final)
https://wonder.cdc.gov/mcd.htmlMultiple Cause of Death (Provisional)
A-TITLE Multiple (underlying and contributing) causes of death from death certificates for years 2018 through last week (provisional)
https://wonder.cdc.gov/mcd.htmlMultiple Cause of Death (Final)
A-TITLE Multiple (underlying and contributing) causes of death from death certificates for years 1999-2022 (final)
/ucd-border.htmlU.S. - Mexico Border Area Mortality
A-TITLE U.S. - Mexico border area mortality by multiple causes (both underlying and contributing) from death certificates for years 1999-2020
/mortSQL.htmlCompressed Mortality
A-TITLE Underlying cause of death from death certificates for years 1968-2016
https://wonder.cdc.gov/fetal.htmlFetal Deaths
A-TITLE Fetal Deaths: data for years 2005-2022
https://wonder.cdc.gov/lbd.htmlInfant Deaths
A-TITLE Linked birth and death certificates for years 1995-2022
/NCA-heatwavedays-historic.htmlHeat Wave Days May-September
A-TITLE National Climate Assessment - Extreme Heat Events: Heat Wave Days in May - September for years 1981-2010
/nasa-nldas.htmlDaily Air Temperatures & Heat Index
A-TITLE North America Land Data Assimilation System (NLDAS) Daily Air Temperatures and Heat Index for years 1979-2011
/nasa-lst.htmlDaily Land Surface Temperatures
A-TITLE Moderate Resolution Imaging Spectroradiometer (MODIS) Land Surface Temperatures (LST) for years 2003-2008
/nasa-pm.htmlDaily Fine Particulate Matter
A-TITLE Outdoor Air Quality - Daily Fine Particulate Matter(PM2.5)(µg/m³) for years 2003-2011
/nasa-insolar.htmlDaily Sunlight
A-TITLE North America Land Data Assimilation System (NLDAS) Daily Sunlight (Insolation) for years 1979-2011
/nasa-precipitation.htmlDaily Precipitation
A-TITLE North America Land Data Assimilation System (NLDAS) Daily Precipitation (mm) for years 1979-2011
https://wonder.cdc.gov/tb.htmlOnline Tuberculosis Information System
A-TITLE TB case report data for years 1993-2022 in OTIS
/bridged-race-population.htmlBridged-Race Population (from NCHS)
A-TITLE Bridged-race population estimates for years 1990-2020
/single-race-population.htmlSingle-Race Population (from Census)
A-TITLE Single-race population estimates for years 2010-2022
/population.htmlPopulation Projections (from Census)
A-TITLE Population projections: national 2014-2060, state 2004-2030
https://wonder.cdc.gov/std.htmlSexually Transmitted Disease Morbidity
A-TITLE STD case report data for years 1984-2014
https://wonder.cdc.gov/vaers.htmlVaccine Adverse Event Reporting
A-TITLE Adverse event reports after vaccination since 1990, updated monthly
/nndss-annual-summary.htmlNNDSS Annual Summary Data Query
A-TITLE Annual cases of National Notifiable infectious conditions with interactive queries, maps and charts
/nndss/nndss_annual_tables_men...NNDSS Annual Tables
A-TITLE Annual cases of National Notifiable infectious conditions for years 2016-2021 in published tables
/nndss/nndss_weekly_tables_men...NNDSS Weekly Tables
A-TITLE Case reports of selected National Notifiable conditions since 1996, updated weekly in published tables
https://wonder.cdc.gov/data2010/Healthy People 2010 (Archive)
A-TITLE Data2010 system data for measuring progress towards health goals
https://wonder.cdc.gov/Text duplicate CDC WONDER
/wonder/help/main.htmlWhat is WONDER?
/wonder/help/faq.htmlFrequently Asked Questions
/datause.htmlData Use Restrictions
/DataSets.htmlData Collections
/wonder/help/faq.htmlCitations
/wonder/help/faq.htmlRepublishing WONDER Data
/WhatsNew.htmlWhat's New?
https://www.cdc.gov/cdc-info/i...External Subdomain Visit CDC-INFO
https://wwwn.cdc.gov/dcs/conta...External Subdomain Email CDC-INFO
https://www.cdc.gov/about/defa...External Subdomain About CDC
https://jobs.cdc.gov/External Subdomain Jobs
https://www.cdc.gov/fundingExternal Subdomain Funding
https://www.cdc.gov/Other/poli...External Subdomain Policies
https://www.cdc.gov/other/plug...External Subdomain File Viewers & Players
https://www.cdc.gov/Other/poli...External Subdomain Privacy
https://www.cdc.gov/od/foiaExternal Subdomain FOIA
https://www.cdc.gov/eeo/nofear...External Subdomain No Fear Act
https://oig.hhs.gov/External Subdomain OIG
https://www.cdc.gov/other/nond...External Subdomain Nondiscrimination
https://www.cdc.gov/contact/ac...External Subdomain Accessibility
https://www.hhs.gov/vulnerabil...External Subdomain Vulnerability Disclosure Policy
https://www.hhs.gov/es/vulnera...External Subdomain Español
https://www.facebook.com/CDCNew window External Subdomain Text duplicate Facebook
https://twitter.com/CDCgovNew window External Text duplicate Twitter
https://www.youtube.com/user/C...New window External Subdomain Youtube
https://www.instagram.com/CDCgov/New window External Subdomain Instagram
https://www.cdc.gov/cdctvExternal Subdomain CDC TV
https://tools.cdc.gov/podcasts...External Subdomain RSS
https://wwwn.cdc.gov/dcs/Reque...External Subdomain Text duplicate Email
https://www.hhs.gov/External Subdomain U.S. Department of Health & Human Services
https://www.usa.gov/External Subdomain USA.gov
https://www.cdc.gov/Other/disc...External Subdomain CDC Website Exit Disclaimer
https://api.addthis.com/oexcha...New window External Subdomain Text duplicate Facebook
https://api.addthis.com/oexcha...New window External Subdomain Text duplicate Twitter
https://api.addthis.com/oexcha...New window External Subdomain Text duplicate LinkedIn
https://api.addthis.com/oexcha...New window External Subdomain Text duplicate Email
https://www.cdc.gov/Other/disc...External Subdomain Website Disclaimers
https://api.addthis.com/oexcha...New window External Subdomain Text duplicate Facebook
https://api.addthis.com/oexcha...New window External Subdomain Text duplicate Twitter
https://api.addthis.com/oexcha...New window External Subdomain Text duplicate LinkedIn
https://api.addthis.com/oexcha...New window External Subdomain Text duplicate Email

Server configuration

HTTP redirects
(Critically important)
This page redirects to "https://wonder.cdc.gov/"
HTTP header
(Important)
The HTML page should be transferred using GZip compression.
No X-Powered HTTP header is sent.
Performance
(Somewhat important)
The page response time is very slow (1.67 seconds). The response time should be less than 0.4 seconds. Slow websites are bad for search engine bots and also result in bad user experience.
This page loads 8 CSS files. This may affect the page load time negatively.
This page loads 15 JavaScript files. This may affect the load time negatively.
The file size of the HTML document is fine (234 kB).

HTTP Response Header

NameValue
cache-controlprivate
content-typetext/html
x-ua-compatibleIE=edge
strict-transport-securitymax-age=31536000; includeSubdomains
x-frame-optionsSAMEORIGIN
x-content-type-optionsnosniff
content-security-policyframe-ancestors 'self'
x-xss-protection1; mode=block
dateSat, 16 Nov 2024 01:39:22 GMT
connectionclose
content-length239676
set-cookie169 Characters
statuscode200
http_versionHTTP/1.1

External factors

This page is referenced by wikipedia.
This website has excellent links from other websites.
This page has backlinks from 9,802 referring domains.
This page has 73,155 backlinks.
This page has backlinks from 5,347 different ip addresses.

Links from Wikipedia

You can find more links using Wikipedia search

Robots.txt

Similar sites

        
                    

                    

                        
Search preview

            wonder.cdc.gov
CDC WONDER

CDC WONDER is a system for disseminating Public Health data and information
Most important keywords

            
Following keywords were found. You can check the keyword optimization of this page for each keyword.
KeywordResultRecheck
CDC WONDER91%Check
CDC90%Check
WONDER89%Check
WONDER Search63%Check
WONDER online databases57%Check
data52%Check
Information51%Check
system50%Check
Information System50%Check
public health data48%Check
  
      Show more keywords and terms  
            

                

                    
                    

                        
                    

                    

                        
                    

                

            

            
                    

                

            


                    

            

                

                    

                    

                        Test up to 1.000 webpages of wonder.cdc.gov with our free plan!                    

                    

                        
                        

                            Try For Free

                            No trial. It's just free!
                        

                    


                

            

        

        
        

    











    




        

        

        

            
            

                
Cookie Policy

                

                    We use cookies to make our site work and also for analytics and advertising purposes. You can enable or disable optional cookies as desired. See the following links for more information.                


                

                    Contact | Privacy
                


                

                    


                        

                        
We need these so the site can function properly

                    

                    

                        
                        
So we can better understand how visitors use our website

                    

                    

                        
                        
So we can serve you tailored ads and promotions