Thensf.org - SEO Checker

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Overview of the SEO Check
Meta information
100% 
Page quality
77% 
Page structure
95% 
Link structure
25% 
Server
69% 
External factors
100% 
SEO Score
Response time
0.90 s
File size
245.80 kB
Words
1068
Media files
64
Number of links
115 internal / 10 external

Task list of SEO Improvements

Meta specifications

Title
(Critically important)
National Sleep Foundation
The length of the page title is perfect. (237 pixels out of 580 max pixel length)
There are no duplicate words in the title
Meta description
(Critically important)
The National Sleep Foundation (NSF) is dedicated to improving public health and well-being through sleep education and advocacy.
The length of the meta description is perfect. (809 pixels out of 1000 max pixel length)
Crawlability
(Critically important)
There are no problems in accessing the website.
Canonical URL
(Important)
https://www.thensf.org/
There is a valid canonical link specified.
Language
(Somewhat important)
Language detected in text: en
Language defined in HTML: en-us
Server location: United States of America
The following language is defined by HTML: en-us
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,initial-scale=1.0,user-scalable=no
descriptionThe National Sleep Foundation (NSF) is dedicated to improving public health and well-being through sleep education and advocacy.
robotsindex, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1
generatorPowered by WPBakery Page Builder - drag and drop page builder for WordPress.
msapplication-TileImagehttps://www.thensf.org/wp-content/uploads/2019/11/cropped-NSF.org-Favicon-270x270.png
article:modified_time2025-04-23T14:13:51+00:00
langen-us
twitter:cardsummary_large_image
og:localeen_US
og:typewebsite
og:titleNational Sleep Foundation
og:descriptionThe National Sleep Foundation (NSF) is dedicated to improving public health and well-being through sleep education and advocacy.
og:urlhttps://www.thensf.org/
og:site_nameNational Sleep Foundation
og:imagehttps://www.thensf.org/wp-content/uploads/2024/10/NSF-stacked-blue-text.png
og:image:width5729
og:image:height3393
og:image:typeimage/png
charsetUTF-8

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Page quality

Content
(Critically important)
Words from the H1 heading are not used in the page content.
This page contains 1068 words. That's ok.
32.8% of the text are stop words.
Keywords used in the page title are also used in the page content. That's good!
The page contains a listing, which indicates a good text layout.
15 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 24.71 words is good.
Frames
(Critically important)
This page does not use a frameset.
Mobile optimization
(Somewhat important)
A viewport "width=device-width,initial-scale=1.0,user-scalable=no" is provided.
At least one Apple touch icon is specified.
Bold and strong tags
(Somewhat important)
The usage of strong and bold tags is perfect. We recommend the use of up to 21 tags for this page.
Image SEO
(Somewhat important)
56 images have no alt attribute. The content of alt attributes is used by search engines.
Social Networks
(Nice to have)
This page is optimized perfectly for social networks.
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
...nt/themes/wavlowvol/img/logovertical.svgThe National Sleep Foundation
...nt/uploads/2022/08/[email protected]No alt attribute provided
...nt/uploads/2022/08/[email protected]No alt attribute provided
...nt/uploads/2022/08/[email protected]No alt attribute provided
...nt/uploads/2022/08/[email protected]No alt attribute provided
...nt/uploads/2022/08/[email protected]No alt attribute provided
...nt/uploads/2022/08/[email protected]No alt attribute provided
...nt/uploads/2022/08/[email protected]No alt attribute provided
...nt/uploads/2022/08/[email protected]No alt attribute provided
...nt/uploads/2022/08/[email protected]No alt attribute provided
...nt/uploads/2022/08/[email protected]No alt attribute provided
...nt/uploads/2022/08/[email protected]No alt attribute provided
...nt/uploads/2022/08/[email protected]No alt attribute provided
...emes/wavlowvol/img/NSF-research-icon.svgNo alt attribute provided
...es/wavlowvol/img/NSF-guidelines-icon.svgNo alt attribute provided
...vlowvol/img/NSF-sleep-education-icon.svgNo alt attribute provided
...emes/wavlowvol/img/arrow_right-white.svgNo alt attribute provided
...mes/wavlowvol/img/arrow_right_24px-3.svgNo alt attribute provided
...2/08/[email protected]No alt attribute provided
...2/08/[email protected]No alt attribute provided
...22/08/[email protected]No alt attribute provided
...2/08/[email protected]No alt attribute provided
...2022/08/[email protected]No alt attribute provided
...2/08/[email protected]No alt attribute provided
...oads/2022/08/[email protected]No alt attribute provided
...2/08/[email protected]No alt attribute provided
...2/08/[email protected]No alt attribute provided
...22/08/[email protected]No alt attribute provided
...es/wavlowvol/img/BSS-logo-registered.svgNo alt attribute provided
...content/themes/wavlowvol/img/Bracket.svgNo alt attribute provided
...nt/themes/wavlowvol/img/[email protected]Best Slept Self Cycle
.../2022/08/[email protected]No alt attribute provided
...s/2022/08/[email protected]No alt attribute provided
...s/2022/08/[email protected]No alt attribute provided
...s/2022/08/[email protected]No alt attribute provided
...ads/2022/08/[email protected]No alt attribute provided
...022/09/SAW-Logo-Vertical-Color-wider.pngNo alt attribute provided
...DDPW22-logo-tagline-Full-color-wider.pngNo alt attribute provided
...s/2022/08/[email protected]No alt attribute provided
.../2022/08/[email protected]No alt attribute provided
.../2022/08/[email protected]No alt attribute provided
...s/2022/08/[email protected]No alt attribute provided
...diaCenter-FeatImg_Gradient-DarkLight.jpgNo alt attribute provided
...ediaCenter-FeatImg_Photo-Sheets-Blue.jpgNo alt attribute provided
...NSF-MediaCenter-FeatImg_Solid-Orange.jpgNSF-MediaCenter-FeatImg_Solid-Orange
...3/NSF-MediaCenter-FeatImg_Solid-Blue.jpgNo alt attribute provided
...diaCenter-FeatImg_Photo-Sheets-White.jpgSquare image of white bedding with the NSF logo overlayed
...03/NSF-MediaCenter-FeatImg_Solid-Sky.jpgNo alt attribute provided
.../02/SAW-2025-SocialPost1-1080x1080-1.pngNo alt attribute provided
...NSF-MediaCenter-FeatImg_Solid-Orange.jpgNSF-MediaCenter-FeatImg_Solid-Orange
...diaCenter-FeatImg_Gradient-DarkLight.jpgNo alt attribute provided
...2025/01/NSF-35th-Logo-featured-image.pngNational Sleep Foundation's 35th Anniversary Seal
...ontent/uploads/2024/11/Susan-Redline.jpgSusan Redline professional image
...03/NSF-MediaCenter-FeatImg_Solid-Sky.jpgNo alt attribute provided
...leep-Starts-the-Moment-You-Wake-Up-1.pngNo alt attribute provided
...p-Starts-Before-You-Hit-the-Sheets-1.pngNo alt attribute provided
...-Sleep-by-Eating-Right-on-Schedule-1.pngNo alt attribute provided
...emes/wavlowvol/img/arrow_right-white.svgNo alt attribute provided
...mes/wavlowvol/img/arrow_right_24px-3.svgNo alt attribute provided
...nt/themes/wavlowvol/img/logovertical.svgNo alt attribute provided
...mark_Noto-Sans_Black-200x100_600x300.pngNo alt attribute provided
...emes/wavlowvol/img/arrow_right-white.svgNo alt attribute provided
...mes/wavlowvol/img/arrow_right_24px-3.svgNo alt attribute provided
...25/01/NSF-35th-Seal_Footer_1200x1200.pngThe 35th Anniversary Seal of National Sleep Foundation

Page structure

H1 heading
(Critically important)
A renewed you after taking small steps each day and night that make a big difference in your sleep health.
The H1 heading is perfect.
Headings
(Important)
There are 27 headings on the page. The amount of headings should be in a more proper relation to the amount of text.

Heading structure

Heading levelContent
H1 A renewed you after taking small steps each day and night that make a big difference in your sleep health.
H2 Tap into our sleep health content
H3 Explore our blog
H4 National Sleep Foundation is an independent nonprofit, dedicated to improving health and well-being by advancing sleep health.
H4 As the leading authority in sleep health, our promise to the public is to help anyone and everyone be their Best Slept Self ®.
H4 Practice these six small steps for healthy sleep.
H4 Daytime
H4 Nighttime
H4 Explore how we can help you improve your sleep health and your overall well-being. We’ve gathered our resources here to help you get started.
H5 Research
H5 Guidelines
H5 Education and Advocacy
H5 1. Light
H5 2. Exercise
H5 3. Mealtimes
H5 4. Avoid…
H5 5. Wind-down
H5 6. Environment
H5 A Healthy Night’s Sleep Starts the Moment You Wake Up
H5 Healthy Sleep Starts Before You Hit the Sheets
H5 Get Healthy Sleep by Eating Right on Schedule
H6 Who we are
H6 What we do
H6 What is your best slept self?
H6 DISCOVER OUR PROGRAMS AND INITIATIVES
H6 Sleep Health Topics
H6 Follow us for more
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.
21 links don't have an anchor text.
The number of internal links is ok.
None of the anchor texts is too long.
There are 10 external links on this page.

Found links on this page

LinkAttributesAnchor text
/wp-content/uploads/2024/08/Sp...New window Subdomain Learn More
https://www.thensf.org/Subdomain IMG-ALT The National Sleep Foundation
https://www.thensf.org/issues/Subdomain Issues
/national-sleep-advocacy-round...Subdomain National Sleep Advocacy Roundtable
/about-sleeptech/Subdomain About SleepTech®
/nsf-cta-ansi-standards/Subdomain NSF / CTA / ANSI Standards
/sleeptech-network/Subdomain SleepTech® Network
/sleeptech-award/Subdomain SleepTech® Award
/sleep-health-index/Subdomain Sleep Health Index®
/sleep-in-america-polls/Subdomain Sleep in America® Polls
/guidelines/Subdomain Guidelines
/sleepapneasurvey/Subdomain Understanding Sleep Apnea
/sleep-health-during-a-preside...Subdomain Sleep Health During a Presidential Election
/sleep-health-and-the-covid-19...Subdomain Sleep Health and the COVID-19 Pandemic
/sleep-health-journal/Subdomain Sleep Health: Journal of the National Sleep Foundation®️
/sleep-awareness-week/Subdomain Sleep Awareness Week®
/drowsy-driving-prevention/Subdomain Drowsy Driving Prevention Week®
/foundations-of-sleep-health/Subdomain Foundations of Sleep Health™
/education-for-health-care-pro...Subdomain Education for Health Care Professionals
/employee-wellness/Subdomain Reshaping Employee Wellness
/sleep-health-topics/Subdomain Sleep Health Topics
/mission-and-goals/Subdomain Mission and Goals
/boards-and-committees/Subdomain Boards and Committees
/about/key-activities/Subdomain Key Activities
/a-national-sleep-foundation-s...Subdomain Statement on Equality and the Need for Change
/about/lifetime-achievement-aw...Subdomain Lifetime Achievement Award
/media-center/Subdomain Media Center
https://www.thensf.org/issues/Subdomain Text duplicate Issues
/national-sleep-advocacy-round...Subdomain Text duplicate National Sleep Advocacy Roundtable
/about-sleeptech/Subdomain Text duplicate About SleepTech®
/nsf-cta-ansi-standards/Subdomain Text duplicate NSF / CTA / ANSI Standards
/sleeptech-network/Subdomain Text duplicate SleepTech® Network
/sleeptech-award/Subdomain Text duplicate SleepTech® Award
/sleep-health-index/Subdomain Text duplicate Sleep Health Index®
/sleep-in-america-polls/Subdomain Text duplicate Sleep in America® Polls
/guidelines/Subdomain Text duplicate Guidelines
/sleepapneasurvey/Subdomain Text duplicate Understanding Sleep Apnea
/sleep-health-during-a-preside...Subdomain Text duplicate Sleep Health During a Presidential Election
/sleep-health-and-the-covid-19...Subdomain Text duplicate Sleep Health and the COVID-19 Pandemic
/sleep-health-journal/Subdomain Text duplicate Sleep Health: Journal of the National Sleep Foundation®️
/sleep-awareness-week/Subdomain Text duplicate Sleep Awareness Week®
/drowsy-driving-prevention/Subdomain Text duplicate Drowsy Driving Prevention Week®
/foundations-of-sleep-health/Subdomain Text duplicate Foundations of Sleep Health™
/education-for-health-care-pro...Subdomain Text duplicate Education for Health Care Professionals
/employee-wellness/Subdomain Text duplicate Reshaping Employee Wellness
/sleep-health-topics/Subdomain Text duplicate Sleep Health Topics
/mission-and-goals/Subdomain Text duplicate Mission and Goals
/boards-and-committees/Subdomain Text duplicate Boards and Committees
/about/key-activities/Subdomain Text duplicate Key Activities
/a-national-sleep-foundation-s...Subdomain Text duplicate Statement on Equality and the Need for Change
/about/lifetime-achievement-aw...Subdomain Text duplicate Lifetime Achievement Award
/media-center/Subdomain Text duplicate Media Center
/mission-and-goals/Subdomain Find out more about NSF
/guidelines/Subdomain No Text
/guidelines/Subdomain Text duplicate Learn More
/sleep-in-america-polls/Subdomain No Text
/sleep-in-america-polls/Subdomain Text duplicate Learn More
/sleep-health-index/Subdomain No Text
/sleep-health-index/Subdomain Text duplicate Learn More
/sleep-health-journal/Subdomain No Text
/sleep-health-journal/Subdomain Text duplicate Learn More
/sleep-health-and-the-covid-19...Subdomain No Text
/sleep-health-and-the-covid-19...Subdomain Text duplicate Learn More
/sleep-awareness-week/Subdomain No Text
/sleep-awareness-week/Subdomain Text duplicate Learn More
/drowsy-driving-prevention/Subdomain No Text
/drowsy-driving-prevention/Subdomain Text duplicate Learn More
/nsfs-statement-on-sleep-healt...Subdomain No Text
/nsfs-statement-on-sleep-healt...Subdomain Text duplicate Learn More
/importance-of-later-school-st...Subdomain No Text
/importance-of-later-school-st...Subdomain Text duplicate Learn More
/drowsy-driving-prevention/Subdomain No Text
/drowsy-driving-prevention/Subdomain Text duplicate Learn More
/national-sleep-foundation-rei...Subdomain No Text
/national-sleep-foundation-rei...Subdomain Text duplicate Learn More
/neighborhood-reinvestment-sle...Subdomain No Text
/neighborhood-reinvestment-sle...Subdomain Text duplicate Learn More
/cannabis-for-sleep/Subdomain No Text
/cannabis-for-sleep/Subdomain Text duplicate Learn More
/house-resolution-supports-sle...Subdomain IMG-ALT NSF-MediaCenter-FeatImg_Solid-Orange
/house-resolution-supports-sle...Subdomain Text duplicate Learn More
/collaboration-to-improve-work...Subdomain No Text
/collaboration-to-improve-work...Subdomain Text duplicate Learn More
/understanding-sleep-apnea-sur...Subdomain IMG-ALT Square image of white bedding with the NSF logo overlayed
/understanding-sleep-apnea-sur...Subdomain Text duplicate Learn More
/connection-between-sleep-heal...Subdomain No Text
/connection-between-sleep-heal...Subdomain Text duplicate Learn More
/2025-dates-sleep-awareness-week/Subdomain No Text
/2025-dates-sleep-awareness-week/Subdomain Text duplicate Learn More
/ikea-u-s-collaborates-with-na...Subdomain Text duplicate IMG-ALT NSF-MediaCenter-FeatImg_Solid-Orange
/ikea-u-s-collaborates-with-na...Subdomain Text duplicate Learn More
/national-sleep-foundation-pre...Subdomain No Text
/national-sleep-foundation-pre...Subdomain Text duplicate Learn More
/national-sleep-foundation-lau...Subdomain IMG-ALT National Sleep Foundation's 35th Anniversary Seal
/national-sleep-foundation-lau...Subdomain Text duplicate Learn More
/susan-redline-sleep-health-jo...Subdomain IMG-ALT Susan Redline professional image
/susan-redline-sleep-health-jo...Subdomain Text duplicate Learn More
/congressional-resolution-drow...Subdomain No Text
/congressional-resolution-drow...Subdomain Text duplicate Learn More
https://www.thensf.org/?p=972Subdomain No Text
https://www.thensf.org/?p=972Subdomain A Healthy Night’s Sleep Starts the Moment You Wake Up
https://www.thensf.org/?p=972Subdomain Learn more
https://www.thensf.org/?p=971Subdomain No Text
https://www.thensf.org/?p=971Subdomain Healthy Sleep Starts Before You Hit the Sheets
https://www.thensf.org/?p=971Subdomain Text duplicate Learn more
https://www.thensf.org/?p=967Subdomain No Text
https://www.thensf.org/?p=967Subdomain Get Healthy Sleep by Eating Right on Schedule
https://www.thensf.org/?p=967Subdomain Text duplicate Learn more
/sleep-health-topics/Subdomain Read more Sleep Health Topics
/ikea-u-s-collaborates-with-na...Subdomain Text duplicate Learn More
https://www.instagram.com/slee...New window External Subdomain Instagram
https://www.facebook.com/natio...New window External Subdomain Facebook
https://twitter.com/sleepfound...New window External X
https://www.linkedin.com/compa...New window External Subdomain LinkedIn
https://www.youtube.com/user/N...New window External Subdomain YouTube
https://www.thensf.org/Subdomain The leading voice of sleep health
A-TITLE National Sleep Foundation
https://www.thensf.org/contact/Subdomain Contact Us
/terms-of-use/Subdomain Terms of Use
https://www.thensf.org/copyright/Subdomain Copyright
/privacy-policy/Subdomain Privacy Policy
https://www.instagram.com/slee...New window External Subdomain No Text
https://www.facebook.com/natio...New window External Subdomain No Text
https://twitter.com/sleepfound...New window External No Text
https://www.linkedin.com/compa...New window External Subdomain No Text
https://www.youtube.com/user/N...New window External Subdomain No Text

Server configuration

HTTP redirects
(Critically important)
This page redirects to "https://www.thensf.org/"
HTTP header
(Important)
The X-powered header is sent within the response header. (unnecessary)
The web server transmits the web page (HTML) in compressed form.
Performance
(Somewhat important)
The page response time of 0.90 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 (246 kB).

HTTP Response Header

NameValue
servernginx
dateSat, 10 May 2025 17:05:27 GMT
content-typetext/html; charset=UTF-8
varyAccept-Encoding
link<https://www.thensf.org/wp-json/>; rel="https://api.w.org/"
x-powered-byWP Engine
x-cacheablebot
cache-controlmax-age=10800, must-revalidate
x-cacheHIT: 28
x-cache-groupbot
content-encodingbr
statuscode200
http_versionHTTP/2

External factors

This website has excellent links from other websites.
This page has backlinks from 1,461 referring domains.
This page has 14,908 backlinks.
This page has backlinks from 1,013 different ip addresses.

Links from Wikipedia

No links from Wikipedia were found.

Robots.txt

Crawl-delay: 10
# START YOAST BLOCK
# ---------------------------
User-agent: *
Disallow:

Sitemap: https://www.thensf.org/sitemap_index.xml
# ---------------------------
# END YOAST BLOCK

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Search preview

www.thensf.org
National Sleep Foundation
The National Sleep Foundation (NSF) is dedicated to improving public health and well-being through sleep education and advocacy.

Most important keywords

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

KeywordResultRecheck
sleep75%Check
Sleep Health66%Check
Sleep Foundation66%Check
National Sleep66%Check
National Sleep Foundation64%Check
National63%Check
health62%Check
NSF61%Check
Sleep Education61%Check
Healthy Sleep59%Check
Show more keywords and terms

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