Pll.harvard.edu - SEO Checker

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Overview of the SEO Check
Meta information
79% 
Page quality
90% 
Page structure
68% 
Link structure
60% 
Server
100% 
External factors
100% 
SEO Score
Response time
0.08 s
File size
108.30 kB
Words
655
Media files
29
Number of links
121 internal / 8 external

Task list of SEO Improvements

Meta specifications

Title
(Critically important)
Professional and Lifelong Learning | Harvard University
The length of the page title is perfect. (492 pixels out of 580 max pixel length)
There are no duplicate words in the title
Meta description
(Critically important)
Explore professional and lifelong learning courses from Harvard University. From free online literature classes to in-person business courses for executives, there’s something for everyone. Earn certificates for professional development, receive college degree credit, or take a class just for fun! Advance your career. Pursue your passion. Keep learning.
The meta description is too long: 2161 pixels from max. 1000 pixels. Optimize description
Crawlability
(Critically important)
There are no problems in accessing the website.
Canonical URL
(Important)
https://pll.harvard.edu/
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)
This page is hosted on a subdomain. Use a top level domain for better SEO results.
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
descriptionExplore professional and lifelong learning courses from Harvard University. From free online literature classes to in-person business courses for executives, there’s something for everyone. Earn certificates for professional development, receive college degree credit, or take a class just for fun! Advance your career. Pursue your passion. Keep learning.
GeneratorDrupal 10 (https://www.drupal.org)
MobileOptimizedwidth
HandheldFriendlytrue
viewportwidth=device-width, initial-scale=1.0
langen
twitter:cardsummary
twitter:site@harvardonline
twitter:descriptionExplore professional and lifelong learning courses from Harvard University. From free online literature classes to in-person business courses for executives, there’s something for everyone. Earn certificates for professional development, receive college degree credit, or take a class just for fun! Advance your career. Pursue your passion. Keep learning.
twitter:titleHomepage
og:site_nameHarvard University
og:typewebsite
og:urlhttps://pll.harvard.edu/homepage
og:titleHomepage | Harvard University
og:descriptionExplore professional and lifelong learning courses from Harvard University. From free online literature classes to in-person business courses for executives, there’s something for everyone. Earn certificates for professional development, receive college degree credit, or take a class just for fun! Advance your career. Pursue your passion. Keep learning.
ImageToolbarfalse
charsetutf-8

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Page quality

Content
(Critically important)
This page contains 655 words. That's ok.
21.5% of the text are stop words.
Keywords used in the page title are also used in the page content. That's good!
Words from the H1 heading are used in the page content.
The page contains a listing, which indicates a good text layout.
8 paragraphs were found on this page.
The text content is perfect.
No placeholders texts or images were found.
There are no duplicates on the site.
The average number of words per sentence of 21.88 words is good.
Frames
(Critically important)
This page does not use a frameset.
Mobile optimization
(Somewhat important)
No Apple touch icon is specified.
A viewport "width=device-width, initial-scale=1.0" is provided.
Bold and strong tags
(Somewhat important)
The usage of strong and bold tags is perfect. We recommend the use of up to 13 tags for this page.
Image SEO
(Somewhat important)
Alt text (alternative text) is correctly used on all found images.
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
/themes/custom/twel_scholar/logo.svgHarvard University logo
.../oibw-pll-course-image.png?itok=rKGFoTeXPhoto of Professor Banaji filming for her course Outsmarting Implicit Bias in a film studio.
...06/TMHC_pll-site_image.png?itok=JCzzdd05Woman in scrubs pointing to screen with medical results while two other medical professional look on
...an-traveler-crossroa_1.jpg?itok=tK6MH8bEPerson standing outdoors looking at a map in the woods.
...blic/course/CS50AI_pll.png?itok=xPwrFW6ACS50AI
...ublic/course/CS50P_pll.png?itok=YoOeOqcSCS50P
...ship-lesson-shackleton.jpg?itok=3qi_6v7HShackelton's group
...blic/2024-11/lifestyle.jpg?itok=FTMmpBbyLifestyle
...240430_LLF_LGranger008.jpg?itok=Es9TfeEqFaculty Chair Scott Westfahl teaching in an Executive Education program.
...LF-Program_LGranger050.jpg?itok=SDIfsA7DMichele DeStefano teaching in Executive Education program
...lic/course/cbv-program.jpg?itok=4b2alCSyExecutives enjoy a working meeting inside an HBS conference room
...ublic/course/Dementia.jpeg?itok=k4hwhhN4Dementia
...ourse/AboutPageImage_0.jpg?itok=3Rr_P50CPainting of Japanese scrolls
.../logo/harvard-business.png?itok=9qHqPu7yHarvard Business School
.../logo/harvard-divinity.png?itok=xFBhBN_qHarvard Divinity School
...ools/logo/EXT_centered.png?itok=sN63ACGlHarvard Extension School
...ls/logo/harvard-health.png?itok=qU5ggV1jHarvard T.H. Chan School of Public Health
...s/logo/harvard-kennedy.png?itok=39BwrHNAHarvard Kennedy School
...s/logo/HLS_shield_2021.png?itok=BIoqltl1Harvard Law School
...ols/logo/harvard-fac_0.png?itok=MpEKFIyYHarvard Faculty of Arts & Sciences
...go/harvard-engineering.png?itok=KniJ3c_cHarvard School of Engineering and Applied Sciences
...ls/logo/harvard-design.png?itok=S42YquskHarvard Graduate School of Design
...ools/logo/harvard-gedu.png?itok=lkqAy0pgHarvard Graduate School of Education
...s/logo/harvard-medical.png?itok=IbibkvQ3Harvard Medical School
...logo/harvard-fac_0_0_1.png?itok=6TUIzTvZHarvard Summer School
...s/logo/harvard-fac_0_0.png?itok=-9w58KB3Harvard Division of Continuing Education
...logo/harvard-fac_0_0_0.png?itok=LtSxY6u0Professional & Executive Development
.../harvard-dental-school.png?itok=_rMLdtisHarvard School of Dental Medicine Logo
...custom/twel_scholar/images/vpal-logo.svgVPAL Logo

Page structure

H1 heading
(Critically important)
Professional and Lifelong Learning
The H1 heading is perfect.
Headings
(Important)
There are 40 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 Professional and Lifelong Learning
H2 Browse by Subject Area
H2 In-person, blended, and online courses
H2 Featured
H2 Subject Areas
H2 Trending Courses
H2 Featured topics
H2 Join our list to learn more
H2 Recently added
H2 Starting soon
H2 Schools
H2 Keep learning.
H2 Footer Links
H3 Outsmarting Implicit Bias
H3 Innovations in Teamwork for Health Care
H3 Managing Happiness
H3 CS50's Introduction to Artificial Intelligence with Python
H3 CS50's Introduction to Programming with Python
H3 Resilient Leadership
H3 Lifestyle and Wellness Coaching
H3 Leadership in Law Firms
H3 Impactful Leadership: Enhancing your Strategic Influence
H3 Creating Brand Value
H3 Dementia: A Comprehensive Update
H3 Japanese Books: From Manuscript to Print
H3 Harvard Business School
H3 Harvard Divinity School
H3 Harvard Extension School
H3 Harvard T.H. Chan School of Public Health
H3 Harvard Kennedy School
H3 Harvard Law School
H3 Harvard Faculty of Arts & Sciences
H3 Harvard School of Engineering and Applied Sciences
H3 Harvard Graduate School of Design
H3 Harvard Graduate School of Education
H3 Harvard Medical School
H3 Harvard Summer School
H3 Harvard Division of Continuing Education
H3 Professional & Executive Development
H3 Harvard School of Dental Medicine
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 8 external links on this page.

Found links on this page

LinkAttributesAnchor text
https://pll.harvard.edu/Anchor Skip to main content
https://pll.harvard.edu/Professional and Lifelong Learning | Harvard University
IMG-ALT Harvard University logo
A-TITLE Professional and Lifelong Learning | Harvard University
/subject/art-designArt & Design
/subject/businessBusiness
/subject/computer-scienceComputer Science
/subject/data-scienceData Science
/subject/education-teachingEducation & Teaching
/subject/health-medicineHealth & Medicine
/subject/humanitiesHumanities
/subject/mathematicsMathematics
/subject/programmingProgramming
/subject/scienceScience
/subject/social-sciencesSocial Sciences
/subject/theologyTheology
https://pll.harvard.edu/catalogAll courses
/catalog?max_price&start_date&...Online Courses
/catalog?price[1]=1Free Courses
/course/outsmarting-implicit-biasIMG-ALT Photo of Professor Banaji filming for her course Outsmarting Implicit Bias in a film studio.
/subject/social-sciencesText duplicate Social Sciences
/course/outsmarting-implicit-biasOutsmarting Implicit Bias
/course/innovations-teamwork-h...IMG-ALT Woman in scrubs pointing to screen with medical results while two other medical professional look on
/subject/businessText duplicate Business
/course/innovations-teamwork-h...Innovations in Teamwork for Health Care
/course/managing-happinessIMG-ALT Person standing outdoors looking at a map in the woods.
/subject/businessText duplicate Business
/course/managing-happinessManaging Happiness
/subject/art-designText duplicate Art & Design
/subject/businessText duplicate Business
/subject/computer-scienceText duplicate Computer Science
/subject/data-scienceText duplicate Data Science
/subject/education-teachingText duplicate Education & Teaching
/subject/health-medicineText duplicate Health & Medicine
/subject/humanitiesText duplicate Humanities
/subject/mathematicsText duplicate Mathematics
/subject/programmingText duplicate Programming
/subject/scienceText duplicate Science
/subject/social-sciencesText duplicate Social Sciences
/subject/theologyText duplicate Theology
https://pll.harvard.edu/catalogView all courses
/course/cs50s-introduction-art...IMG-ALT CS50AI
/subject/computer-scienceText duplicate Computer Science
/course/cs50s-introduction-art...CS50's Introduction to Artificial Intelligence with Python
/course/cs50s-introduction-pro...IMG-ALT CS50P
/subject/programmingText duplicate Programming
/course/cs50s-introduction-pro...CS50's Introduction to Programming with Python
/course/resilient-leadershipIMG-ALT Shackelton's group
/subject/businessText duplicate Business
/course/resilient-leadershipResilient Leadership
https://pll.harvard.edu/trendingView all trending
/subject/entrepreneurshipEntrepreneurship
/subject/social-sciencesText duplicate Social Sciences
/subject/business-developmentBusiness Development
/subject/general-4General
/subject/professional-developm...Professional Development
/subject/leadershipLeadership
/subject/self-improvementSelf-Improvement
/subject/professional-developmentText duplicate Professional Development
/subject/data-science-toolsData Science Tools
/subject/business-analysisBusiness Analysis
/subject/healthHealth
/subject/financeFinance
/subject/managementManagement
/subject/data-analysisData Analysis
/subject/career-developmentCareer Development
/subject/finance-0Text duplicate Finance
/subject/public-global-healthPublic & Global Health
/subject/workplace-cultureWorkplace Culture
/subject/health-medicineText duplicate Health & Medicine
/subject/data-visualizationData Visualization
/course/lifestyle-and-wellness...IMG-ALT Lifestyle
/subject/health-medicineText duplicate Health & Medicine
/course/lifestyle-and-wellness...Lifestyle and Wellness Coaching
/course/leadership-law-firmsIMG-ALT Faculty Chair Scott Westfahl teaching in an Executive Education program.
/subject/businessText duplicate Business
/course/leadership-law-firmsLeadership in Law Firms
/course/impactful-leadership-e...IMG-ALT Michele DeStefano teaching in Executive Education program
/subject/social-sciencesText duplicate Social Sciences
/course/impactful-leadership-e...Impactful Leadership: Enhancing your Strategic Influence
https://pll.harvard.edu/recentView all recently added
/course/creating-brand-valueIMG-ALT Executives enjoy a working meeting inside an HBS conference room
/subject/businessText duplicate Business
/course/creating-brand-valueCreating Brand Value
/course/dementia-comprehensive...IMG-ALT Dementia
/subject/health-medicineText duplicate Health & Medicine
/course/dementia-comprehensive...Dementia: A Comprehensive Update
/course/japanese-books-manuscr...IMG-ALT Painting of Japanese scrolls
/subject/humanitiesText duplicate Humanities
/course/japanese-books-manuscr...Japanese Books: From Manuscript to Print
/starting-soonView all starting soon
/school/harvard-business-schoolIMG-ALT Harvard Business School
/school/harvard-business-schoolText duplicate Harvard Business School
/school/harvard-divinity-schoolIMG-ALT Harvard Divinity School
/school/harvard-divinity-schoolText duplicate Harvard Divinity School
/school/harvard-extension-schoolIMG-ALT Harvard Extension School
/school/harvard-extension-schoolText duplicate Harvard Extension School
/school/harvard-th-chan-school...IMG-ALT Harvard T.H. Chan School of Public Health
/school/harvard-th-chan-school...Text duplicate Harvard T.H. Chan School of Public Health
/school/harvard-kennedy-schoolIMG-ALT Harvard Kennedy School
/school/harvard-kennedy-schoolText duplicate Harvard Kennedy School
/school/harvard-law-schoolIMG-ALT Harvard Law School
/school/harvard-law-schoolText duplicate Harvard Law School
/school/harvard-faculty-arts-s...IMG-ALT Harvard Faculty of Arts & Sciences
/school/harvard-faculty-arts-s...Text duplicate Harvard Faculty of Arts & Sciences
/school/harvard-school-enginee...IMG-ALT Harvard School of Engineering and Applied Sciences
/school/harvard-school-enginee...Text duplicate Harvard School of Engineering and Applied Sciences
/school/harvard-graduate-schoo...IMG-ALT Harvard Graduate School of Design
/school/harvard-graduate-schoo...Text duplicate Harvard Graduate School of Design
/school/harvard-graduate-schoo...IMG-ALT Harvard Graduate School of Education
/school/harvard-graduate-schoo...Text duplicate Harvard Graduate School of Education
/school/harvard-medical-schoolIMG-ALT Harvard Medical School
/school/harvard-medical-schoolText duplicate Harvard Medical School
/school/harvard-summer-schoolIMG-ALT Harvard Summer School
/school/harvard-summer-schoolText duplicate Harvard Summer School
/school/harvard-division-conti...IMG-ALT Harvard Division of Continuing Education
/school/harvard-division-conti...Text duplicate Harvard Division of Continuing Education
/school/professional-executive...IMG-ALT Professional & Executive Development
/school/professional-executive...Text duplicate Professional & Executive Development
/school/harvard-school-dental-...IMG-ALT Harvard School of Dental Medicine Logo
/school/harvard-school-dental-...Harvard School of Dental Medicine
https://pll.harvard.edu/catalogView All Courses
https://community.alumni.harva...New window External Subdomain Donate
http://accessibility.harvard.edu/New window External Subdomain Accessibility
https://www.harvard.edu/privac...New window External Subdomain Privacy Policy
https://pll.harvard.edu/terms-useTerms of Use
https://internationaldatapriva...New window External Subdomain EEA Privacy Disclosures
https://www.flickr.com/photos/...New window External Subdomain Harvard Gates, Fall #2
https://www.flickr.com/photos/...New window External Subdomain Tim Sackton
https://creativecommons.org/li...New window External CC BY-SA 2.0
https://vpal.harvard.edu/New window External Subdomain IMG-ALT VPAL Logo

Server configuration

HTTP redirects
(Critically important)
This page redirects to "https://pll.harvard.edu/"
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 is excellent with 0.08 seconds.
The file size of the HTML document is fine (108 kB).

HTTP Response Header

NameValue
cache-controlmax-age=43200, public
content-encodinggzip
content-languageen
content-typetext/html; charset=UTF-8
etagW/"1748156819"
expiresSun, 19 Nov 1978 05:00:00 GMT
last-modifiedSun, 25 May 2025 07:06:59 GMT
servernginx
strict-transport-securitymax-age=300
x-content-type-optionsnosniff
x-drupal-cacheMISS
x-drupal-dynamic-cacheUNCACHEABLE (poor cacheability)
x-frame-optionsSAMEORIGIN
x-generatorDrupal 10 (https://www.drupal.org)
x-pantheon-styx-hostnamestyx-fe2-b-7b5dbfcc48-k7bpv
x-styx-req-idd9b98300-3936-11f0-b164-d2b4f8c23395
dateSun, 25 May 2025 17:55:42 GMT
x-served-bycache-chi-kigq8000111-CHI, cache-fra-eddf8230058-FRA
x-cacheHIT, HIT
x-cache-hits17, 1
x-timerS1748195743.591798,VS0,VE51
varyAccept-Encoding, Cookie, Cookie, Cookie
age38921
accept-rangesbytes
via1.1 varnish, 1.1 varnish
content-length19922
statuscode200
http_versionHTTP/2

External factors

This website has excellent links from other websites.
This page has backlinks from 396 referring domains.
This page has 14,866 backlinks.
This page has backlinks from 280 different ip addresses.

Links from Wikipedia

No links from Wikipedia were found.

Robots.txt

#
# robots.txt
#
# This file is to prevent the crawling and indexing of certain parts
# of your site by web crawlers and spiders run by sites like Yahoo!
# and Google. By telling these "robots" where not to go on your site,
# you save bandwidth and server resources.
#
# This file will be ignored unless it is at the root of your host:
# Used:    http://example.com/robots.txt
# Ignored: http://example.com/site/robots.txt
#
# For more information about the robots.txt standard, see:
# http://www.robotstxt.org/robotstxt.html

User-agent: *
# CSS, JS, Images
Allow: /core/*.css$
Allow: /core/*.css?
Allow: /core/*.js$
Allow: /core/*.js?
Allow: /core/*.gif
Allow: /core/*.jpg
Allow: /core/*.jpeg
Allow: /core/*.png
Allow: /core/*.svg
Allow: /profiles/*.css$
Allow: /profiles/*.css?
Allow: /profiles/*.js$
Allow: /profiles/*.js?
Allow: /profiles/*.gif
Allow: /profiles/*.jpg
Allow: /profiles/*.jpeg
Allow: /profiles/*.png
Allow: /profiles/*.svg
# Directories
Disallow: /core/
Disallow: /profiles/
# Files
Disallow: /README.md
Disallow: /composer/Metapackage/README.txt
Disallow: /composer/Plugin/ProjectMessage/README.md
Disallow: /composer/Plugin/Scaffold/README.md
Disallow: /composer/Plugin/VendorHardening/README.txt
Disallow: /composer/Template/README.txt
Disallow: /modules/README.txt
Disallow: /sites/README.txt
Disallow: /themes/README.txt
Disallow: /web.config
# Paths (clean URLs)
Disallow: /admin/
Disallow: /comment/reply/
Disallow: /filter/tips
Disallow: /node/add/
Disallow: /search/
Disallow: /user/register
Disallow: /user/password
Disallow: /user/login
Disallow: /user/logout
Disallow: /media/oembed
Disallow: /*/media/oembed
# Paths (no clean URLs)
Disallow: /index.php/admin/
Disallow: /index.php/comment/reply/
Disallow: /index.php/filter/tips
Disallow: /index.php/node/add/
Disallow: /index.php/search/
Disallow: /index.php/user/password
Disallow: /index.php/user/register
Disallow: /index.php/user/login
Disallow: /index.php/user/logout
Disallow: /index.php/media/oembed
Disallow: /index.php/*/media/oembed

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Search preview

pll.harvard.edu
Professional and Lifelong Learning | Harvard University
Explore professional and lifelong learning courses from Harvard University. From free online literature classes to in-person business courses for executives, there’s something for everyone. Earn certificates for professional development, receive college degree credit, or take a class just for fun! Advance your career. Pursue your passion. Keep learning.

Most important keywords

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

KeywordResultRecheck
Learn82%Check
Professional79%Check
Learning77%Check
Lifelong Learning77%Check
long73%Check
Harvard72%Check
Professional Development67%Check
Harvard University66%Check
Harvard Business60%Check
courses59%Check
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