Bl.uk - SEO Checker

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Overview of the SEO Check
Meta information
100% 
Page quality
64% 
Page structure
45% 
Link structure
96% 
Server
91% 
External factors
100% 
SEO Score
Response time
0.40 s
File size
165.00 kB
Words
308
Media files
7
Number of links
40 internal / 17 external

Task list of SEO Improvements

Meta specifications

Title
(Critically important)
The British Library - the national Library of the UK
The length of the page title is perfect. (443 pixels out of 580 max pixel length)
There are no duplicate words in the title
Meta description
(Critically important)
Visit the national library of the UK. Explore our buildings, study, meet friends, attend an event and get free access to over 170 million items. Join us.
The length of the meta description is perfect. (904 pixels out of 1000 max pixel length)
Crawlability
(Critically important)
There are no problems in accessing the website.
Canonical URL
(Important)
https://www.bl.uk/
There is a valid canonical link specified.
Language
(Somewhat important)
Language detected in text: en
Language defined in HTML: en
Server location: Canada
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)
The favicon is linked correctly.

Meta tags

NameValue
viewportwidth=device-width, initial-scale=1
next-size-adjustEmpty
descriptionVisit the national library of the UK. Explore our buildings, study, meet friends, attend an event and get free access to over 170 million items. Join us.
robotsindex
langen
twitter:cardsummary_large_image
twitter:titleWelcome to the British Library
twitter:descriptionWe are the UK's national library. Open to everyone and free to use. Explore our buildings, study, meet friends, attend an event and get free access to over 170 million items.
twitter:imagehttps://www.bl.uk/images/v5dwkion/production/5c74153cc4a1bdda72cb9d1ee34b036542c24ea9-6720x4480.jpg/woman-sat-book-reading-room-2024.jpg?rect=0,476,6720,3528&w=1200&h=630&auto=format
twitter:image:altA woman sat intently studying an old book at a Reading Room desk at the British Library.
og:titleWelcome to the British Library
og:descriptionWe are the UK's national library. Open to everyone and free to use. Explore our buildings, study, meet friends, attend an event and get free access to over 170 million items.
og:urlhttps://www.bl.uk
og:imagehttps://www.bl.uk/images/v5dwkion/production/5c74153cc4a1bdda72cb9d1ee34b036542c24ea9-6720x4480.jpg/woman-sat-book-reading-room-2024.jpg?rect=0,476,6720,3528&w=1200&h=630&auto=format
og:image:altA woman sat intently studying an old book at a Reading Room desk at the British Library.
og:typewebsite
charsetutf-8

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Page quality

Content
(Critically important)
Words from the H1 heading are not used in the page content.
There are only 308 words on this page. Good pages should have about 800 words of useful content.
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.
7 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 14.5 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" is provided.
Bold and strong tags
(Somewhat important)
The usage of strong and bold tags is perfect. We recommend the use of up to 6 tags for this page.
Image SEO
(Somewhat important)
Alt text (alternative text) is correctly used on all found images.
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
...lay.jpg?rect=206,0,2294,2500&auto=formatA woman with dark short hair looks at a diplay of books at the gardening exhibition at the British Library.
...plorers-exhibition-2025.webp?auto=formatAn illustration for the Story Explorers exhibition at the British Library, including a montage of different elements, including two moons, a cat in a spaceship, two birds, a frog, a tree and stars.
...ay.jpg?rect=2296,0,3464,3840&auto=formatA woman stands looking at an illuminated display case in the Treasures Gallery of the British Library.
...re.jpg?rect=0,1119,4667,2625&auto=formatAn audience of people sit under pink lights in the Knowledge Centre auditorium in the British Library in London
...rvation-studio-book-2016.jpg?auto=formatA woman works to conserve a book at the British Library.
...24.jpg?rect=0,1260,4289,3027&auto=formatA young man talks to a woman in front of a computer screen at the Reading Room helpdesk in the British Library in London
Video URLWidthHeight
...rary-website-welcome-video-2025-rf26.mp4

Page structure

H1 heading
(Critically important)
Welcome to the British Library
The H1 heading contains the words Welcome to! Use important keywords instead.
Headings
(Important)
Some headings occur twice on the page.
The structure of headings is missing one or more levels. Do not skip heading levels.

Heading structure

Heading levelContent
H1 Welcome to the British Library
H2 What do you want to do today?
H2 Everything for
H2 Events and exhibitions
H3 Unearthed: The Power of Gardening
H3 Story Explorers: A journey through imaginary worlds
H3 Treasures of the British Library
H3 All events
H3 Support our work
H3 Contact us
H6 Everything for Duplicate text
Some anchor texts are used more than once.
The number of internal links is ok.
None of the anchor texts is too long.
All internal links are not using dynamic parameters.
There are 17 external links on this page.

Found links on this page

LinkAttributesAnchor text
https://www.bl.uk/Anchor Skip to content
https://www.bl.uk/No Text
https://www.bl.uk/collectionCollections
https://events.bl.uk/External Subdomain What's on
https://www.bl.uk/visitVisit
https://www.bl.uk/storiesStories
https://www.bl.uk/aboutAbout us
https://www.bl.uk/about/contactContact and help
https://www.bl.uk/visitOpening hours
https://www.bl.uk/hubs/researchResearch
https://www.bl.uk/hubs/businessBusiness
https://www.bl.uk/hubs/schoolsSchools
https://www.bl.uk/hubs/familyFamily
https://support.bl.uk/External Subdomain Support us
https://shop.bl.uk/External Subdomain Shop
https://bll01.primo.exlibrisgr...External Subdomain Search our catalogue
https://bll01.primo.exlibrisgr...External Subdomain Search our catalogues
https://www.bl.uk/collectionDiscover our collections
https://www.bl.uk/visitVisit the Library
/visit/reading-roomsUse our study spaces
https://www.bl.uk/hubs/schoolsText duplicate Schools
https://www.bl.uk/hubs/researchText duplicate Research
https://www.bl.uk/hubs/businessText duplicate Business
https://events.bl.uk/exhibitio...External Subdomain Unearthed: The Power of Gardening 02 May 2025 - 10 Aug 2025 Discover how centuries of gardening have nurtured individuals, empowered communities and transfor...
IMG-ALT A woman with dark short hair looks at a diplay of books at the gardening exhibition at the British Library.
https://events.bl.uk/exhibitio...External Subdomain Story Explorers: A journey through imaginary worlds 16 May 2025 - 18 Jan 2026 Take a free family trip through our collection and discover the stories behind ...
IMG-ALT An illustration for the Story Explorers exhibition at the British Library, including a montage of different elements, including two moons, a cat in a spacesh...
https://events.bl.uk/exhibitio...External Subdomain Treasures of the British Library Free exhibition exploring some of the world's most exciting, beautiful and significant books, maps and manuscripts.
IMG-ALT A woman stands looking at an illuminated display case in the Treasures Gallery of the British Library.
https://events.bl.uk/External Subdomain All events Discover exhibitions, events, and courses with a host of world-class speakers. In London, Yorkshire and online.
IMG-ALT An audience of people sit under pink lights in the Knowledge Centre auditorium in the British Library in London
https://support.bl.uk/External Subdomain Text duplicate Support us
https://www.bl.uk/about/contactContact us
https://www.bl.uk/aboutWho we are
https://www.bl.uk/about/learnLearning
https://www.bl.uk/about/pressPress and media
https://www.bl.uk/about/careersJobs
/about/cyber-attackCyber-attack
/visit/reader-passFree Reader Pass
/visit/reading-roomsFree study spaces
/visit/membershipMembership
https://support.bl.uk/External Subdomain Support our work
https://www.bl.uk/hubs/businessText duplicate Business
https://imagesonline.bl.uk/New window External Subdomain Collection images
/services/digitisationDigitisation
/services/legal-depositLegal deposit
/services/collection-metadata-...Metadata services
https://www.bl.uk/services/plrPublic Lending Right (PLR)
/services/research-collaborationResearch collaboration
/services/commercial-venue-hireVenue hire
https://www.bl.uk/servicesAll services
https://www.bl.uk/privacyPrivacy policy
https://www.bl.uk/termsTerms and conditions
https://www.bl.uk/foiFreedom of information
/accessibility-statementAccessibility statement
https://www.bl.uk/about/contactText duplicate Contact us
https://creativecommons.org/li...New window External CC-BY
https://twitter.com/britishlib...New window External No Text
https://www.facebook.com/briti...New window External Subdomain No Text
https://www.instagram.com/brit...New window External Subdomain No Text
https://www.tiktok.com/@britis...New window External Subdomain No Text

Server configuration

HTTP redirects
(Critically important)
This page redirects to "https://www.bl.uk/"
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 is excellent with 0.40 seconds.
The file size of the HTML document is fine (165 kB).

HTTP Response Header

NameValue
dateWed, 23 Jul 2025 04:48:29 GMT
content-typetext/html; charset=utf-8
cache-controlprivate, no-cache, no-store, max-age=0, must-revalidate
content-encodinggzip
varyRSC, Next-Router-State-Tree, Next-Router-Prefetch, Next-Router-Segment-Prefetch, Accept-Encoding
strict-transport-securitymax-age=63072000; includeSubDomains; preload
request-contextappId=cid-v1:
referrer-policystrict-origin-when-cross-origin
x-content-type-optionsnosniff
content-security-policyframe-ancestors 'self' https://sanitycms.bl.uk
x-frame-optionsALLOW-FROM https://sanitycms.bl.uk
permissions-policyfullscreen=(self), autoplay=(self)
link</_next/static/media/6fe7b4311fc4a748-s.p.woff2>; rel=preload; as="font"; crossorigin=""; type="font/woff2", </_next/static/css/50df1fc6e608e5d9.css>; rel=preload; as="style", </_next/static/css/6ddef9084a658dc6.css>; rel=preload; as="style", </_next/static/css/b63ffd6f15a07599.css>; rel=preload; as="style", </_next/static/css/1a7f33b85b28858d.css>; rel=preload; as="style", </_next/static/css/525cc3c9c51f9dc5.css>; rel=preload; as="style", </_next/static/css/1ddddfb72e3ea339.css>; rel=preload; as="style"
x-powered-byNext.js
x-azure-ref20250723T044829Z-r1755ffb846n2fq9hC1FRAvtcc0000000bxg00000000h4s2
x-cacheCONFIG_NOCACHE
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 6,076 referring domains.
This page has 654,558 backlinks.
This page has backlinks from 2,971 different ip addresses.

Links from Wikipedia

You can find more links using Wikipedia search

Robots.txt

User-Agent: *
Allow: /

Sitemap: https://www.bl.uk/sitemap.xml

Similar sites

Search preview

www.bl.uk
The British Library - the national Library of the UK
Visit the national library of the UK. Explore our buildings, study, meet friends, attend an event and get free access to over 170 million items. Join us.

Most important keywords

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

KeywordResultRecheck
Library79%Check
British Library73%Check
national library70%Check
British68%Check
national58%Check
explore54%Check
Welcome50%Check
free46%Check
Visit46%Check
study46%Check
Show more keywords and terms

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Cookie Policy

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