Loc.gov - SEO Checker

Overview of the SEO Check
Meta information
77% 
Page quality
75% 
Page structure
77% 
Link structure
37% 
Server
36% 
External factors
100% 
SEO Score
Response time
0.59 s
File size
148.20 kB
Words
683
Media files
40
Number of links
79 internal / 23 external

Task list of SEO Improvements

Meta specifications

Title
(Critically important)
Home | Library of Congress
The length of the page title is perfect. (248 pixels out of 580 max pixel length)
There are no duplicate words in the title
Meta description
(Critically important)
The Library of Congress is the nation's oldest federal cultural institution, and it serves as the research arm of Congress. It is also the largest library in the world, with more than 162 million items. The collections include books, sound recordings, motion pictures, photographs, maps, and manuscripts.
There are more than one meta descriptions on the page. Only one is allowed.
The meta description is too long: 1830 pixels from max. 1000 pixels. Optimize description
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 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)
No favicon is linked in the HTML code.

Meta tags

NameValue
descriptionThe world’s largest library. View historic photos, maps, books and more. Contact experts for help with research. Plan a visit. Home of U.S. Copyright Office.
dc.identifierhttp://www.loc.gov/
viewportwidth=device-width,initial-scale=1
version$Revision$
msvalidate.015C89FB9D99590AB2F55BD95C3A59BD81
dc.languageeng
dc.sourceLibrary of Congress, Washington, D.C. 20540 USA
dc.titleHome | Library of Congress
dc.rightsText is U.S. Government Work
dc.typeweb page
msapplication-TileColor#ffffff
msapplication-TileImagems-icon-144x144.png
langen
twitter:sitelibrarycongress
fb:adminslibraryofcongress
og:site_nameThe Library of Congress
og:typearticle
og:titleHome | Library of Congress
og:descriptionThe world’s largest library. View historic photos, maps, books and more. Contact experts for help with research. Plan a visit. Home of U.S. Copyright Office.
og:imagehttp://www.loc.gov/static/images/favicons/open-graph-logo.png
og:image:secure_urlhttps://www.loc.gov/static/images/favicons/open-graph-logo.png
og:image:width1200
og:image:height630
X-UA-CompatibleIE=edge
charsetutf-8

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Page quality

Content
(Critically important)
Only 2 paragraph/s was/were found on this page.
This page contains 683 words. That's ok.
29.9% 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.
No placeholders texts or images were found.
There are no duplicates on the site.
The average number of words per sentence of 13.43 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" is provided.
This page only loads 3 JavaScript files. That's good!
Bold and strong tags
(Somewhat important)
The usage of strong and bold tags is perfect. We recommend the use of up to 14 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
/static/images/logo-loc-new-branding.svgNo alt attribute provided
...ergreen/2021-reopen-welcome_1200x560.jpgNo alt attribute provided
...mages/featured/programs/summer-movie.jpgNo alt attribute provided
.../featured/exhibits/baseball_1200x560.jpgNo alt attribute provided
...ages/featured/evergreen/congress_A-L.jpgNo alt attribute provided
...ome/images/featured/programs/nls-R-a.jpgNo alt attribute provided
...ding/evergreen/tj-lights-48079402371.jpgNo alt attribute provided
...ing/programs/nbf2021-launch2_480x309.jpgNo alt attribute provided
...nding/blogs/columbia-jukebox_480x309.jpgNo alt attribute provided
.../trending/blogs/olympics2021_480x309.jpgNo alt attribute provided
...ding/evergreen/virtualevents_480x309.jpgNo alt attribute provided
...en-suffrage-48079406641_69c1146579_k.jpgNo alt attribute provided
...images/your-library/01-PlanYourVisit.jpgNo alt attribute provided
...mages/your-library/02-ResearchCenter.jpgNo alt attribute provided
.../images/your-library/03-AskLibrarian.jpgNo alt attribute provided
...can-revolution/revolution-founding-1.jpg1752. Pre-Revolutionary view of the Statehouse in Philadelphia, which became Independence Hall. Engraved map. Geography & Map Division
...can-revolution/revolution-founding-2.jpg1791. Known as “The L’Enfant Plan,” this map serves as the blueprint for where the United States government would be permanently situated. Manuscript map. Geography & Map Division
...can-revolution/revolution-founding-3.jpg1833. Eagle map of the United States created for “Rudiments of National Knowledge.” Engraved map. Geography & Map Division
...can-revolution/revolution-founding-4.jpg1870. Boston on Independence morning. Panoramic map. Geography & Map Division
...can-revolution/revolution-founding-5.jpg1775. Boston during the Revolutionary War showing the location of His Majesty’s army and the rebels. Published in London in 1776. Engraved map. Geography & Map Division
...can-revolution/revolution-founding-6.jpg1775. Boston with the entrenchments of His Majesty’s forces during the Revolutionary War. Published in London in 1777. Engraved map. Geography & Map Division
...can-revolution/revolution-founding-7.jpg1775. Boston environs and Boston Harbor map showing rebel troop movements during the Revolutionary War. Geography & Map Division
...can-revolution/revolution-founding-8.jpg1776. Rough draft of Boston and Boston Harbor. Manuscript map. Geography & Map Division
...can-revolution/revolution-founding-9.jpg1777-1778. Defenses in Philadelphia during the Revolutionary War. Depicting the siege of Mud Island on the River Delaware. Manuscript map. Geography & Map Division
...an-revolution/revolution-founding-10.jpg1777. Philadelphia on the border of the state of Delaware during the Revolution. Manuscript map. Geography & Map Division
...an-revolution/revolution-founding-11.jpg1777. Philadelphia showing the names of land owners and the boundaries of their properties. Engraved map. Geography & Map Division
...an-revolution/revolution-founding-12.jpg1777. Battle of Brandywine, Pennsylvania, during the Revolutionary War. Unfinished watercolor sketch map. Geography & Map Division
/static/images/share/email.svgEmail
/static/images/social-media/facebook.svgFacebook
/static/images/social-media/twitter.svgTwitter
/static/images/social-media/youtube.svgYoutube
/static/images/social-media/pinterest.svgPinterest
/static/images/social-media/flickr.svgFlickr
/static/images/social-media/instagram.svgInstagram
/static/images/social-media/itunes.svgiTunes
Video URLWidthHeight
...000/data/210708mmg0000-1280x720_2000.mp4100%100%

Page structure

H1 heading
(Critically important)
There is no H1 heading specified.
Headings
(Important)
The structure of headings is missing one or more levels. Do not skip heading levels.
There are 26 headings on the page. The amount of headings should be in a more proper relation to the amount of text.

Heading structure

Heading levelContent
H2 Featured Items
H2 Trending
H2 Your Library
H2 Free to Use and Reuse: American Revolution and Founding Washington
H2 1752. Pre-Revolutionary view of the Statehouse in Philadelphia, which became Independence Hall. Engraved map. Geography & Map Division
H2 1791. Known as “The L’Enfant Plan,” this map serves as the blueprint for where the United States government would be permanently situated. Manuscript map. Geography & Map Division
H2 1833. Eagle map of the United States created for “Rudiments of National Knowledge.” Engraved map. Geography & Map Division
H2 1870. Boston on Independence morning. Panoramic map. Geography & Map Division
H2 1775. Boston during the Revolutionary War showing the location of His Majesty’s army and the rebels. Published in London in 1776. Engraved map. Geography & Map Division
H2 1775. Boston with the entrenchments of His Majesty’s forces during the Revolutionary War. Published in London in 1777. Engraved map. Geography & Map Division
H2 1775. Boston environs and Boston Harbor map showing rebel troop movements during the Revolutionary War. Geography & Map Division
H2 1776. Rough draft of Boston and Boston Harbor. Manuscript map. Geography & Map Division
H2 1777-1778. Defenses in Philadelphia during the Revolutionary War. Depicting the siege of Mud Island on the River Delaware. Manuscript map. Geography & Map Division
H2 1777. Philadelphia on the border of the state of Delaware during the Revolution. Manuscript map. Geography & Map Division
H2 1777. Philadelphia showing the names of land owners and the boundaries of their properties. Engraved map. Geography & Map Division
H2 1777. Battle of Brandywine, Pennsylvania, during the Revolutionary War. Unfinished watercolor sketch map. Geography & Map Division
H2 1778. Line of defense and troops between the Schuylkill and Delaware Rivers north of the city, and other fortifications. Also shows names of suburban land owners. Manuscript map. Geography & Map Di...
H2 1781. Military actions resulting in the American victory at Yorktown, Virginia. Drawn by the aide-de-camp to the Marquis de Lafayette. Manuscript map. Geography & Map Division
H2 1794. Washington, D.C., in its infancy. Among the earliest printed maps of the United States capital city. Geography & Map Division
H2 1800. The "x" on a pre-1790 map captures the boundaries and owners of land that would become the Library of Congress in 1800. Geography & Map Division
H3 Welcome Back! Visitors and Researchers Return
H3 Summer Movies on the Lawn
H3 Play Ball! Baseball Resources at the Library
H3 Congress.gov
H3 Services for the Blind and Print Disabled
H3 Top Searches:
Some internal link anchor texts are too long.
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.
There are 2 links with a trivial anchor text.
The number of internal links is ok.
There are 23 external links on this page.
LinkAttributesAnchor text
https://www.loc.gov/Anchor Skip to main content
/about/pandemic-information/fo...Trivial anchor text
More
/item/prn-21-036Text duplicate Trivial anchor text
More
https://www.loc.gov/Library of Congress
https://www.loc.gov/discover/Discover
/services-and-programs/Services
https://www.loc.gov/visit/Visit
https://www.loc.gov/education/Education
https://www.loc.gov/connect/Connect
https://www.loc.gov/about/About
https://ask.loc.gov/External Ask a Librarian
https://www.loc.gov/help/Help
https://www.loc.gov/contact/Contact
https://catalog.loc.gov/External Search Online Catalog
http://copyright.gov/External Copyright.gov
https://www.congress.gov/External Congress.gov
https://www.loc.gov/visit/Welcome Back! Visitors and Researchers Return Timed, ticketed entry for visitors; reading room appointments for researchers
/item/prn-21-033/Summer Movies on the Lawn Fun classics in an open-air setting Thursday nights through August 12
https://guides.loc.gov/baseballExternal Play Ball! Baseball Resources at the Library An inside look at one of the largest and most diverse collections
https://www.congress.gov/External Congress.gov The official site for U.S. federal legislative information
/programs/national-library-ser...Services for the Blind and Print Disabled Eligible patrons receive free Braille & talking books from our NLS
https://catalog.loc.gov/External Library Catalog
https://www.loc.gov/collections/Digital Collections
https://www.loc.gov/rr/Researchers
https://www.loc.gov/visit/Visitors
https://www.loc.gov/teachers/Teachers
https://blogs.loc.gov/External Blogs
https://copyright.gov/External U.S. Copyright Office
/services-and-programs/More...
/search/?q=BaseballBaseball
/search/?q=New OrleansNew Orleans
/search/?q=Civil War PhotographsCivil War Photographs
/search/?q=Frederick DouglassFrederick Douglass
/search/?q=Civil RightsCivil Rights
/search/?q=MapsMaps
https://www.loc.gov/visit/Watch Welcome Back to the Library of Congress!
https://www.loc.gov/news/News Get the Most Current News from the Library of Congress
/item/prn-21-027/National Book Festival 10-Day Festival Sept. 17-26 Offers Multiformat Experience
https://blogs.loc.gov/now-see-...External Blog Expanded National Jukebox: Celebrating Black Performers
https://blogs.loc.gov/loc/2021...External Blog Olympic Gold: Harrison Dillard and Military Athletes
https://www.loc.gov/events/Events View a Calendar of Upcoming Programs from the Library
https://www.loc.gov/exhibits/Exhibitions Library Exhibitions Reopened to the Public
https://www.loc.gov/about/More about the Library
https://www.loc.gov/visit/Plan Your Visit
http://www.loc.gov/rr/Research Centers
http://www.loc.gov/rr/askalib/Text duplicate Ask a Librarian
/collections/american-revoluti...American Revolution and Its Era: Maps and Charts of North America and the West Indies, 1750 to 1789.
https://www.loc.gov/free-to-use/content that is free to use and reuse
/resource/g3824p.ct000294/IMG-ALT 1752. Pre-Revolutionary view of the Statehouse in Philadelphia, which became Independence Hall. Engraved map. Geography & Map Division
/resource/g3824p.ct000294/Text duplicate 1752. Pre-Revolutionary view of the Statehouse in Philadelphia, which became Independence Hall. Engraved map. Geography & Map Division
/resource/g3850.ct002167b/IMG-ALT 1791. Known as “The L’Enfant Plan,” this map serves as the blueprint for where the United States government would be permanently situated. Manuscript map. Ge...
/resource/g3850.ct002167b/Text duplicate 1791. Known as “The L’Enfant Plan,” this map serves as the blueprint for where the United States government would be permanently situated. Manuscript map. Ge...
/resource/g3700.np000151/IMG-ALT 1833. Eagle map of the United States created for “Rudiments of National Knowledge.” Engraved map. Geography & Map Division
/resource/g3700.np000151/Text duplicate 1833. Eagle map of the United States created for “Rudiments of National Knowledge.” Engraved map. Geography & Map Division
/resource/g3764b.pm002730/IMG-ALT 1870. Boston on Independence morning. Panoramic map. Geography & Map Division
/resource/g3764b.pm002730/Text duplicate 1870. Boston on Independence morning. Panoramic map. Geography & Map Division
/resource/g3764b.ar093200/IMG-ALT 1775. Boston during the Revolutionary War showing the location of His Majesty’s army and the rebels. Published in London in 1776. Engraved map. Geography & M...
/resource/g3764b.ar093200/Text duplicate 1775. Boston during the Revolutionary War showing the location of His Majesty’s army and the rebels. Published in London in 1776. Engraved map. Geography & M...
/resource/g3764b.ar093400/IMG-ALT 1775. Boston with the entrenchments of His Majesty’s forces during the Revolutionary War. Published in London in 1777. Engraved map. Geography & Map Division
/resource/g3764b.ar093400/Text duplicate 1775. Boston with the entrenchments of His Majesty’s forces during the Revolutionary War. Published in London in 1777. Engraved map. Geography & Map Division
/resource/g3764b.ct000070/IMG-ALT 1775. Boston environs and Boston Harbor map showing rebel troop movements during the Revolutionary War. Geography & Map Division
/resource/g3764b.ct000070/Text duplicate 1775. Boston environs and Boston Harbor map showing rebel troop movements during the Revolutionary War. Geography & Map Division
/resource/g3764b.ar093100/IMG-ALT 1776. Rough draft of Boston and Boston Harbor. Manuscript map. Geography & Map Division
/resource/g3764b.ar093100/Text duplicate 1776. Rough draft of Boston and Boston Harbor. Manuscript map. Geography & Map Division
/resource/g3824p.ar132400/IMG-ALT 1777-1778. Defenses in Philadelphia during the Revolutionary War. Depicting the siege of Mud Island on the River Delaware. Manuscript map. Geography & Map Di...
/resource/g3824p.ar132400/Text duplicate 1777-1778. Defenses in Philadelphia during the Revolutionary War. Depicting the siege of Mud Island on the River Delaware. Manuscript map. Geography & Map Di...
/resource/g3824p.ar131600/IMG-ALT 1777. Philadelphia on the border of the state of Delaware during the Revolution. Manuscript map. Geography & Map Division
/resource/g3824p.ar131600/Text duplicate 1777. Philadelphia on the border of the state of Delaware during the Revolution. Manuscript map. Geography & Map Division
/resource/g3824p.ar132000/IMG-ALT 1777. Philadelphia showing the names of land owners and the boundaries of their properties. Engraved map. Geography & Map Division
/resource/g3824p.ar132000/Text duplicate 1777. Philadelphia showing the names of land owners and the boundaries of their properties. Engraved map. Geography & Map Division
/resource/g3824c.ar302800/IMG-ALT 1777. Battle of Brandywine, Pennsylvania, during the Revolutionary War. Unfinished watercolor sketch map. Geography & Map Division
/resource/g3824c.ar302800/Text duplicate 1777. Battle of Brandywine, Pennsylvania, during the Revolutionary War. Unfinished watercolor sketch map. Geography & Map Division
/resource/g3824p.ar132600/IMG-ALT 1778. Line of defense and troops between the Schuylkill and Delaware Rivers north of the city, and other fortifications. Also shows names of suburban land ow...
/resource/g3824p.ar132600/Text duplicate 1778. Line of defense and troops between the Schuylkill and Delaware Rivers north of the city, and other fortifications. Also shows names of suburban land ow...
/resource/g3881s.ar300600/IMG-ALT 1781. Military actions resulting in the American victory at Yorktown, Virginia. Drawn by the aide-de-camp to the Marquis de Lafayette. Manuscript map. Geogra...
/resource/g3881s.ar300600/Text duplicate 1781. Military actions resulting in the American victory at Yorktown, Virginia. Drawn by the aide-de-camp to the Marquis de Lafayette. Manuscript map. Geogra...
/resource/g3850.ct004191/IMG-ALT 1794. Washington, D.C., in its infancy. Among the earliest printed maps of the United States capital city. Geography & Map Division
/resource/g3850.ct004191/Text duplicate 1794. Washington, D.C., in its infancy. Among the earliest printed maps of the United States capital city. Geography & Map Division
/resource/g3852l.la002234/IMG-ALT 1800. The "x" on a pre-1790 map captures the boundaries and owners of land that would become the Library of Congress in 1800. Geography & Map Division
/resource/g3852l.la002234/Text duplicate 1800. The "x" on a pre-1790 map captures the boundaries and owners of land that would become the Library of Congress in 1800. Geography & Map Division
https://www.loc.gov/connect/Follow Us
https://loc.gov/subscribe/IMG-ALT Email
A-TITLE Email
https://www.facebook.com/libra...External IMG-ALT Facebook
A-TITLE Facebook
https://www.twitter.com/librar...External IMG-ALT Twitter
A-TITLE Twitter
https://www.youtube.com/librar...External IMG-ALT Youtube
A-TITLE Youtube
https://www.pinterest.com/Libr...External Pinterest
IMG-ALT Pinterest
A-TITLE Pinterest
https://www.flickr.com/photos/...External IMG-ALT Flickr
A-TITLE Flickr
https://instagram.com/libraryc...External IMG-ALT Instagram
A-TITLE Instagram
https://itunes.apple.com/us/ar...External Subdomain IMG-ALT iTunes
A-TITLE iTunes
https://www.research.net/r/lib...External Take our survey External
A-TITLE Take our survey
/accessibility/Accessibility
https://www.loc.gov/legal/Legal
/about/office-of-the-inspector...Inspector General
/legal/standard-disclaimer-for...External Link Disclaimer
https://www.usa.gov/External USA.gov
https://www.loc.gov/careers/Careers
https://www.loc.gov/contact/Text duplicate Contact
https://www.loc.gov/news/Media
/philanthropy/online-donation/...Donate
http://library-of-congress-sho...External Subdomain Shop
https://www.congress.gov/External Text duplicate Congress.gov
http://copyright.gov/External United States Copyright Office

Server configuration

HTTP redirects
(Critically important)
This page redirects to "https://www.loc.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 of 0.59 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.
This page only loads 1 CSS files. That's ok.
This page only loads 3 JavaScript files. That's good!
The file size of the HTML document is fine (148 kB).

HTTP Response Header

NameValue
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External factors

Blacklists
(Critically important)
This website is not classified "for adult only".
Shallalist classifies this website as Government. This classification is fine.
This page is referenced by wikipedia.
This website has excellent links from other websites.
This page has backlinks from 234,855 referring domains.
This page has 48,421,356 backlinks.
This page has backlinks from 131,125 different ip addresses.
Facebook popularity
(Somewhat important)
This page has social activity like shares, comments or likes on facebook.
Listed on Webwiki
(Nice to have)
This website is listed on Webwiki.

Robots.txt

User-agent: 008
Disallow: /

#Baiduspider
User-agent: Baiduspider
Disallow: /

User-agent: Baiduspider-image
Disallow: /

User-agent: *
Disallow: /cgi-bin/
Disallow: /web_arch/
Disallow: /rr/mopic/staff
Disallow: /loc/volunteers
Disallow: /ficmanagers
Disallow: /preserv/extranet/
Disallow: /myloc
Disallow: /nationalfilmregistry
Disallow: /fedsearch
Disallow: /search
Disallow: /pictures/search
Disallow: /pictures/related
Crawl-Delay: 5

Sitemap: https://www.loc.gov/sitemap.xml

Facebook popularity

Shares / Likes / Comments
18,278

Only the data for the given URL is shown. We cannot determine the social actions for a linked fan page.

Search preview

www.loc.gov
Home | Library of Congress
The Library of Congress is the nation's oldest federal cultural institution, and it serves as the research arm of Congress. It is also the largest library in the world, with more than 162 million items. The collections include books, sound recordings, motion pictures, photographs, maps, and manuscripts.

Most important keywords

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

KeywordResultRecheck
Library74%Check
Library Congress74%Check
Congress74%Check
largest library62%Check
Manuscript56%Check
Search56%Check
gov56%Check
serves as56%Check
Library Service54%Check
serves52%Check

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