Nrich.maths.org - SEO Checker

Sign up for free! PDF Export
Overview of the SEO Check
Meta information
61% 
Page quality
49% 
Page structure
100% 
Link structure
92% 
Server
46% 
External factors
100% 
SEO Score
Response time
0.67 s
File size
62.60 kB
Words
493
Media files
16
Number of links
65 internal / 4 external

Task list of SEO Improvements

Meta specifications

Title
(Critically important)
Home | NRICH
The page title is too short. (134 pixels of 580 max pixel length) Optimize title
There are no duplicate words in the title
Meta description
(Critically important)
The meta description is missing.
Crawlability
(Critically important)
There are no problems in accessing the website.
Canonical URL
(Important)
https://nrich.maths.org/home
The specified canonical link points to a different page.
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
GeneratorDrupal 10 (https://www.drupal.org)
MobileOptimizedwidth
HandheldFriendlytrue
viewportwidth=device-width, initial-scale=1.0
langen
charsetutf-8

Automatically check nrich.maths.org including all subpages at once!

Try for free
Guaranteed free of charge during trial period.

Page quality

Content
(Critically important)
Words from the H1 heading are not used in the page content.
There are only 493 words on this page. Good pages should have about 800 words of useful content.
32.5% of the text are stop words.
The page contains a listing, which indicates a good text layout.
6 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 23.83 words is good.
Frames
(Critically important)
This page does not use a frameset.
Mobile optimization
(Somewhat important)
No Apple touch icon is specified.
This page loads 63 JavaScript files. This may affect the load time negatively.
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 10 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
...mbridge_logo_white_600.png?itok=eUDcO68DUniversity of Cambridge logo white
...fault/files/2023-12/nrich-logo_white.svgHome
...-08/apple-7686006_1280.jpg?itok=c5w5OC1sA red apple on a book.
...ss-summer-3290015_1280.jpg?itok=XHwS4cwqPot of green pencils.
...9/penguins-429134_1280.jpg?itok=ARbo-DrHPenguin leaning down to look at its chick.
...-08/gears-1666499_1280.jpg?itok=kl0VF0L2Three interlocking rusty gears.
...3-12/iStock-1488833714.jpg?itok=_5rSYNxsOverhead picture of a girl and adult doing maths together on a desk.
...3-12/iStock-1459826558.jpg?itok=Uxq3w_j4A teacher at a table with young children, looking at a colourful grid and dice.
...23-12/iStock-525409417.jpg?itok=_LMWG6vtA teacher standing in front of secondary students at desks. One student has their hand raised, and the others are smiling.
...3-12/iStock-1278978518.jpg?itok=Gbt0iyJ2Two older students and their teacher standing at a whiteboard. One of the students is writing something.
/themes/nrich/images/twitter-x_white.pngTwitter X logo
/themes/nrich/images/facebook-logo.pngFacebook logo
/themes/nrich/images/Bluesky_Logo_white.svgBluesky logo
...mbridge_logo_white_600.png?itok=eUDcO68DUniversity of Cambridge logo white
...fault/files/2023-12/nrich-logo_white.svgNrich logo white

Page structure

H1 heading
(Critically important)
Enriching mathematics for all learners
The H1 heading is perfect.
Headings
(Important)
The heading structure is perfect.

Heading structure

Heading levelContent
H1 Enriching mathematics for all learners
H2 Main navigation
H2 Or search by topic
H2 NRICH in the classroom
H2 Footer
H3 Number and algebra
H3 Geometry and measure
H3 Probability and statistics
H3 Working mathematically
H3 Advanced mathematics
H3 For younger learners
H3 Get started
H3 For Teachers
H3 For Students
H3 For Parents
H3 Problem-Solving Schools
H3 Dive in
H3 What we do and why we do it
H3 Primary curriculum-linked problems
H3 Secondary curriculum-linked problems
H3 Post 16 curriculum-linked problems
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 4 external links on this page.

Found links on this page

LinkAttributesAnchor text
https://nrich.maths.org/Anchor Skip to main content
https://nrich.maths.org/IMG-ALT Home
/events-teachers-and-studentsSubdomain Teaching Averages using rich tasks
https://nrich.maths.org/teachersTeachers
/teachers/early-yearsEarly years
/teachers/primaryPrimary
/teachers/secondarySecondary
/teachers/post-16Post-16
https://nrich.maths.org/studentsStudents
/students/primaryText duplicate Primary
/students/secondaryText duplicate Secondary
/students/post-16Text duplicate Post-16
https://nrich.maths.org/parentsParents
/parents/early-yearsText duplicate Early years
/parents/primaryText duplicate Primary
/parents/secondaryText duplicate Secondary
/parents/post-16Text duplicate Post-16
/problem-solving-schoolsProblem-Solving Schools
/what-problem-solving-schools-...What is the Problem-Solving Schools initiative?
/becoming-problem-solving-schoolBecoming a Problem-Solving School
https://nrich.maths.org/charterCharter
/pss-hub/dashboardHub
/resources-professional-develo...Resources for PD
/events-teachers-and-studentsEvents
/about-nrichAbout NRICH
/about-nrichAbout us
/impact-storiesImpact stories
/support-nrichSupport us
https://nrich.maths.org/fundersOur funders
/contact-usContact us
/tags/place-value-and-number-s...Place value and the number system
/tags/fractions-decimals-perce...Fractions, decimals, percentages, ratio and proportion
/tags/calculations-and-numeric...Calculations and numerical methods
/tags/algebraic-expressions-eq...Algebraic expressions, equations and formulae
/tags/coordinates-functions-an...Coordinates, functions and graphs
/tags/patterns-sequences-and-s...Patterns, sequences and structure
/tags/properties-numbersProperties of numbers
/tags/vectors-and-matricesVectors and matrices
/tags/measuring-and-calculatin...Measuring and calculating with units
/tags/pythagoras-and-trigonometryPythagoras and trigonometry
/tags/angles-polygons-and-geom...Angles, polygons, and geometrical proof
/tags/3d-geometry-shape-and-space3D geometry, shape and space
/tags/transformations-and-cons...Transformations and constructions
/tags/handling-processing-and-...Handling, processing and representing data
/tags/probability-groupProbability
/tags/thinking-mathematicallyThinking mathematically
/tags/mathematical-mindsetsMathematical mindsets
/tags/decision-mathematics-and...Decision mathematics and combinatorics
/tags/mechanicsMechanics
/tags/calculusCalculus
/tags/advanced-probability-and...Advanced probability and statistics
/tags/early-years-foundation-s...Early years foundation stage
https://nrich.maths.org/teachersFor Teachers
https://nrich.maths.org/studentsFor Students
https://nrich.maths.org/parentsFor Parents
/problem-solving-schoolsText duplicate Problem-Solving Schools
https://nrich.maths.org/15115What we do and why we do it
https://nrich.maths.org/12631Primary curriculum-linked problems
https://nrich.maths.org/8517Secondary curriculum-linked problems
https://nrich.maths.org/9088Post 16 curriculum-linked problems
/newsletterSign up to our teacher newsletter
/technical-helpTechnical help
/accessibility-statementAccessibility statement
/contact-usSubdomain Text duplicate Contact us
/terms-and-conditionsTerms and conditions
https://twitter.com/nrichmathsNew window External Links to the NRICH Twitter account
IMG-ALT Twitter X logo
https://www.facebook.com/nrich...New window External Subdomain Links to the NRICH Facebook account
IMG-ALT Facebook logo
https://bsky.app/profile/nrich...New window External Links to the NRICH Bluesky account
IMG-ALT Bluesky logo
https://maths.org/External Millennium Mathematics Project

Server configuration

HTTP redirects
(Critically important)
This page redirects to "https://nrich.maths.org/"
HTTP header
(Important)
The web server version is sent within the HTTP header.
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 0.67 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 loads 42 CSS files. This may affect the page load time negatively.
This page loads 63 JavaScript files. This may affect the load time negatively.
The file size of the HTML document is fine (63 kB).

HTTP Response Header

NameValue
dateWed, 27 May 2026 09:39:31 GMT
serverApache/2.4.67 (Debian)
varyUser-Agent,Accept-Encoding
cache-controlmust-revalidate, no-cache, private
x-drupal-dynamic-cacheHIT
content-languageen
x-content-type-optionsnosniff
x-frame-optionsSAMEORIGIN
expiresSun, 19 Nov 1978 05:00:00 GMT
x-generatorDrupal 10 (https://www.drupal.org)
content-security-policy-report-onlyobject-src 'none'; script-src 'self' 'report-sample' 'unsafe-inline' 'unsafe-eval' https://www.googletagmanager.com cdn.jsdelivr.net https://cdn.jsdelivr.net https://maths-org.matomo.cloud/; script-src-elem 'self' 'unsafe-inline' https://connect.facebook.net https://www.googletagmanager.com https://www.google.com https://googleads.g.doubleclick.net cdn.jsdelivr.net https://cdn.jsdelivr.net; style-src 'self' 'report-sample' 'unsafe-inline' fonts.googleapis.com https://fonts.googleapis.com cdn.jsdelivr.net https://cdn.jsdelivr.net; webrtc 'block'; worker-src 'self'; base-uri 'self'; form-action 'self'; frame-ancestors 'self'
content-security-policyobject-src 'none'; script-src * 'report-sample' 'unsafe-inline' 'unsafe-eval'; style-src * 'report-sample' 'unsafe-inline'; webrtc 'block'; worker-src 'self'; base-uri 'self'; form-action 'self'; frame-ancestors 'self' https://*.activelearnprimary.co.uk
x-drupal-cacheHIT
content-encodinggzip
transfer-encodingchunked
content-typetext/html; charset=UTF-8
statuscode200
http_versionHTTP/1.1

External factors

This page is referenced by wikipedia.
This website has excellent links from other websites.
This page has backlinks from 795 referring domains.
This page has 135,615 backlinks.
This page has backlinks from 530 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
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

Similar sites

Search preview

nrich.maths.org
Home | NRICH

Most important keywords

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

KeywordResultRecheck
NRICH82%Check
mathematics59%Check
learners59%Check
rich tasks58%Check
Enriching55%Check
curriculum-linked47%Check
problems47%Check
teachers and students47%Check
curriculum-linked problems47%Check
Students45%Check
Show more keywords and terms

Automatically check nrich.maths.org including all subpages at once!

Try for free
Guaranteed free of charge during trial period.

Cookie Policy

We use cookies to make our site work and also for analytics and advertising purposes. You can enable or disable optional cookies as desired. See the following links for more information.

Contact | Privacy

We need these so the site can function properly

So we can better understand how visitors use our website

So we can serve you tailored ads and promotions