Library.harvard.edu - SEO Checker

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Overview of the SEO Check
Meta information
79% 
Page quality
90% 
Page structure
66% 
Link structure
83% 
Server
97% 
External factors
100% 
SEO Score
Response time
0.46 s
File size
79.00 kB
Words
725
Media files
10
Number of links
53 internal / 29 external

Task list of SEO Improvements

Meta specifications

Title
(Critically important)
Harvard Library | Harvard Library
There are word repetitions in the page title.
The length of the page title is perfect. (294 pixels out of 580 max pixel length)
Meta description
(Critically important)
The meta description is missing.
Crawlability
(Critically important)
There are no problems in accessing the website.
Canonical URL
(Important)
https://library.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
MobileOptimizedwidth
HandheldFriendlytrue
viewportwidth=device-width, initial-scale=1.0
langen
twitter:cardsummary_large_image
twitter:titleHarvard Library - Harvard Library
twitter:site@harvardlibrary
twitter:imagehttps://library.harvard.edu/sites/default/files/Veritas%20decorative%20detail%20in%20Widener%20Library.jpg
twitter:image:altDecorative Veritas detail inside Widener Library
og:site_nameHarvard Library
og:typehome_page
og:urlhttps://library.harvard.edu/harvard-library
og:titleHarvard Library
og:imagehttps://library.harvard.edu/sites/default/files/Veritas%20decorative%20detail%20in%20Widener%20Library.jpg
og:image:altDecorative Veritas detail inside Widener Library
charsetutf-8

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Page quality

Content
(Critically important)
This page contains 725 words. That's ok.
25.9% of the text are stop words.
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 17.5 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 15 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
...tom/harvard/assets/images/logo-final.svgHarvard Library Homepage
...ementflags_256_0.jpeg.webp?itok=ozvAVVp7Banners with the Harvard shield hang from Widener Library
....12.13_am_0.png?h=5a289e94&itok=SOPltj4xA watercolor of a dahlia flower
...lic/cna_img.png?h=4a126e69&itok=v2DeDxXxColor drawing of a view in Nantucket from colonial era
...l_library_0.jpg?h=3bd9a108&itok=d4B9_bBXDetail of HLS MS 58_f5r_seq 17_Harvard Law School Library
... 4.16.27 PM.png?h=57d8b2cc&itok=lVEAEHS4A piece of art from the Ruhleben civilian internment camp papers
..._catalog_0.jpeg?h=14994294&itok=x8UilaT5Image of a group of people along a road, with the caption "industrial procession"
...CC_GD_1862.jpeg?h=56d0ca2e&itok=EGKK9L6NBanners hang from Widener Library during commencement
...7_africa_tour_0_0.jpg.webp?itok=j-gOUWl_A tall man wearing a suit stands in a room filled with smiling children.
...tom/harvard/assets/images/logo-large.svgHarvard Library Logo

Page structure

H1 heading
(Critically important)
Welcome to Harvard Library
The H1 heading contains the words Welcome to! Use important keywords instead.
Headings
(Important)
Some headings occur twice on the page.

Heading structure

Heading levelContent
H1 Welcome to Harvard Library
H2 Other Search Tools
H2 Celebrating the Class of 2026
H2 Explore What’s Possible
H2 Digital Collections
H2 How to Research with Harvard Library as an Alum
H2 Exhibitions
H2 Upcoming Events
H2 Advancing Open Access and Knowledge for All
H2 Post Footer
H3 Music on a Mission
H3 Tour of Houghton Library
H3 Tour of Houghton Library Duplicate text
H3 Data Discussions: Let's Write a DMS Plan (Online)
H4 Botanical Illustrations from the Harvard University Botany Libraries
H4 Worlds of Change: Materials From 17th- and 18th-Century North America
H4 Magna Carta at the Harvard Law School Library
H4 Ruhleben: A British Community in War-Time Germany
H4 Slavery, Abolition, Emancipation and Freedom
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.
1 links don't have an anchor text.
The number of internal links is ok.
None of the anchor texts is too long.
There are too many external links (29) on this page.

Found links on this page

LinkAttributesAnchor text
https://library.harvard.edu/Anchor Skip to main content
https://library.harvard.edu/IMG-ALT Harvard Library Homepage
A-TITLE Harvard Library Homepage
https://ask.library.harvard.edu/External Subdomain Ask a Librarian
A-TITLE Ask a Librarian, contact us with your question
/librariesLibrary Hours
A-TITLE Library locations and hours
https://hollis.harvard.edu/External Subdomain HOLLIS Catalog
A-TITLE Sign in to HOLLIS
/collectionsExplore Harvard Library Collections
/how-to/choose-search-toolChoosing a Search Tool
https://databases.hollis.harva...External Subdomain Databases
https://curiosity.lib.harvard....External Subdomain CURIOSity Digital Exhibits
/services-tools/libby-harvardLibby for Ebooks
/how-to/research-special-colle...Researching With Special Collections & Archives
/collections/all-featured-coll...All Featured Collections
https://library.harvard.edu/visitVisiting Harvard Library
/libraries?active_filter=0Locations & Hours
/spacesFind a Study Space
/visit/visitor-access-borrowin...Visitor Access & Borrowing Cards
/how-to/use-harvard-library-alumFor Alumni
/visit/exhibitionsExhibitions
https://libcal.library.harvard...External Subdomain Events & Workshops
A-TITLE Upcoming Events
/servicesServices at Harvard Library
/how-to/use-harvard-library-alumAlumni Access
/how-to/borrow-renew-and-retur...Request and Borrow Library Materials
/services-tools/scan-deliverScan & Deliver
/services-tools/tech-loanTech Loan
/services-tools/research-consu...Research Consultations
/services-tools/harvard-librar...Research Guides
/how-to/teach-harvard-libraryTeaching Services
/services-tools/visualization-...Visualization Support
/services-tools/digital-mappin...Digital Mapping and GIS Support
/services-tools/lamont-multime...Lamont Multimedia Lab
/services-tools/cabot-media-st...Cabot Media Studios
/libraries/harvard-university-...University Records Management
/services/all-services-and-toolsAll Services & Tools A-Z
https://library.harvard.edu/aboutAbout Harvard Library
/about/newsLibrary News
https://circblog.library.harva...External Subdomain The Circ Blog
/about/library-newsletters-soc...Newsletters & Social Media
/about/grants-fellowshipsGrants & Fellowships
/about/support-librarySupport the Library
https://hollis.harvard.edu/New window External Subdomain HOLLIS Catalog (external link, opens in a new tab)
https://databases.hollis.harva...New window External Subdomain Database Search (external link, opens in a new tab)
https://hollisarchives.lib.har...New window External Subdomain Collection Guides (external link, opens in a new tab)
https://dash.harvard.edu/homeNew window External Subdomain Harvard Scholarship (external link, opens in a new tab)
https://collex.lib.harvard.edu/New window External Subdomain Collections Explorer (external link, opens in a new tab)
https://hgl.harvard.edu/New window External Subdomain Geospatial Data & Maps (external link, opens in a new tab)
https://ask.library.harvard.edu/External Subdomain Text duplicate Ask a Librarian
A-TITLE Ask a Librarian, contact us with your question
/librariesText duplicate Library Hours
A-TITLE Library locations and hours
https://hollis.harvard.edu/External Subdomain Text duplicate HOLLIS Catalog
A-TITLE Sign in to HOLLIS
/collectionsDiscover Our Collections
https://library.harvard.edu/visitPlan a Visit
/servicesGet Research Assistance
/collections-exhibits/explore-...Surprise Me!
/collections/all-featured-coll...Explore Featured Collections
https://curiosity.lib.harvard....External Subdomain Botanical Illustrations from the Harvard University Botany Libraries
https://curiosity.lib.harvard....External Subdomain Worlds of Change: Materials From 17th- and 18th-Century North America
https://curiosity.lib.harvard....External Subdomain Magna Carta at the Harvard Law School Library
https://curiosity.lib.harvard....External Subdomain Ruhleben: A British Community in War-Time Germany
https://curiosity.lib.harvard....External Subdomain Slavery, Abolition, Emancipation and Freedom
/how-to/use-harvard-library-alumText duplicate Alumni Access
A-TITLE Visit link for "Alumni Access"
/exhibits/music-missionMusic on a Mission
/exhibits/music-missionNo Text
/visit/exhibitionsSee All Exhibitions
A-TITLE See All Exhibitions
https://libcal.library.harvard...External Subdomain Tour of Houghton Library
A-TITLE See details about "Tour of Houghton Library"
https://libcal.library.harvard...External Subdomain Text duplicate Tour of Houghton Library
A-TITLE See details about "Tour of Houghton Library"
https://libcal.library.harvard...External Subdomain Data Discussions: Let's Write a DMS Plan (Online)
A-TITLE See details about "Data Discussions: Let's Write a DMS Plan (Online)"
https://libcal.library.harvard...External Subdomain See All Events
A-TITLE See more of this content
https://dash.harvard.edu/homeNew window External Subdomain DASH (link is external, opens in a new tab)
/services-tools/harvard-librar...Public Domain Corpus
/services-tools/harvard-librar...Harvard Library APIs & Datasets
https://library.harvard.edu/IMG-ALT Harvard Library Logo
A-TITLE Harvard Library
/support-libraryGiving to the Library
/visit-about/policiesLibrary Use Policies
/accessibilityLibrary Accessibility
/privacy-terms-use-copyright-i...Privacy & Copyright
https://library.harvard.edu/staffStaff Profiles
/about/policies/press-photo-an...Press Requests
https://harvard-lts.libanswers...External Subdomain Report a Problem
https://creativecommons.org/li...External Creative Commons Attribution 4.0 International License
/harvard-library-cc-copyright-...Subdomain Harvard Library CC BY Copyright Policy
https://accessibility.harvard....External Subdomain Accessibility
https://accessibility.huit.har...External Subdomain Digital Accessibility
https://provost.harvard.edu/External Subdomain Office of the Provost

Server configuration

HTTP redirects
(Critically important)
This page redirects to "https://library.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 of 0.46 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 (79 kB).

HTTP Response Header

NameValue
cache-controlmax-age=1800, public
content-encodinggzip
content-languageen
content-typetext/html; charset=UTF-8
etagW/"1779926017"
expiresSun, 19 Nov 1978 05:00:00 GMT
last-modifiedWed, 27 May 2026 23:53:37 GMT
servernginx
x-consumer-id980ada07-fb23-4d17-acf6-6e57ebd0f63d
x-content-type-optionsnosniff
x-drupal-dynamic-cacheHIT
x-frame-optionsSAMEORIGIN
x-pantheon-styx-hostnamestyx-us-a-5fbd9fdf97-kh6sg
x-styx-req-id475bd372-5a27-11f1-a5b1-424d29c00849
dateWed, 27 May 2026 23:58:35 GMT
x-served-bycache-chi-klot8100150-CHI, cache-par-lfpg1960064-PAR
x-cacheHIT, MISS
x-cache-hits11, 0
x-timerS1779926315.105422,VS0,VE282
varyAccept-Encoding, Cookie, X-Consumer-ID, Origin, Cookie, Cookie
age298
accept-rangesbytes
via1.1 varnish, 1.1 varnish
content-length19917
statuscode200
http_versionHTTP/2

External factors

This page is referenced by wikipedia.
This website has excellent links from other websites.
This page has backlinks from 591 referring domains.
This page has 65,326 backlinks.
This page has backlinks from 382 different ip addresses.

Links from Wikipedia

You can find more links using Wikipedia search

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
# 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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Most important keywords

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

KeywordResultRecheck
Library86%Check
Harvard86%Check
Harvard Library86%Check
School Library68%Check
Harvard University66%Check
Music Library66%Check
Houghton Library66%Check
Tour49%Check
Houghton47%Check
Collections43%Check
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