Sanofi.com - SEO Checker

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Overview of the SEO Check
Meta information
100% 
Page quality
60% 
Page structure
100% 
Link structure
75% 
Server
100% 
External factors
100% 
SEO Score
Response time
0.25 s
File size
209.90 kB
Words
644
Media files
10
Number of links
119 internal / 11 external

Task list of SEO Improvements

Meta specifications

Title
(Critically important)
R&D-Driven and AI-Powered Biopharma Company | Sanofi
The length of the page title is perfect. (524 pixels out of 580 max pixel length)
There are no duplicate words in the title
Meta description
(Critically important)
Sanofi is a research & development-driven, AI-powered healthcare biopharma company committed to improving lives through innovative medicines & vaccines.
The length of the meta description is perfect. (978 pixels out of 1000 max pixel length)
Crawlability
(Critically important)
There are no problems in accessing the website.
Canonical URL
(Important)
https://www.sanofi.com/en
There is a valid canonical link specified.
Language
(Somewhat important)
Language detected in text: en
Language defined in HTML: en
Server location: Ireland
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 character encoding is not specified in the HTTP header.
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
descriptionSanofi is a research & development-driven, AI-powered healthcare biopharma company committed to improving lives through innovative medicines & vaccines.
keywordssanofi, sanofi pharmaceuticals, sanofi company
google-site-verificationkd9JGb-jxkper0TCPOGZc6CexoSlJI6_8osTXkxmscA
msvalidate.01A82E0E9DA021DFDECAA9FC1F4D101BCA
emotionEmpty
langen
twitter:cardsummary
twitter:titleR&D-Driven and AI-Powered Biopharma Company | Sanofi
twitter:descriptionSanofi is a research & development-driven, AI-powered healthcare biopharma company committed to improving lives through innovative medicines & vaccines.
twitter:urlhttps://www.sanofi.com/en
twitter:imagehttps://www.sanofi.com/assets/dotcom/pages/images/homepage/Integrated-Report-202302_20230612091817.jpg
og:titleR&D-Driven and AI-Powered Biopharma Company | Sanofi
og:typeEmpty
og:descriptionSanofi is a research & development-driven, AI-powered healthcare biopharma company committed to improving lives through innovative medicines & vaccines.
og:urlhttps://www.sanofi.com/en
og:imagehttps://www.sanofi.com/assets/dotcom/pages/images/homepage/Integrated-Report-202302_20230612091817.jpg
og:localeen
og:locale:alternatefr
charsetutf-8

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Page quality

Content
(Critically important)
Some words from the page title are not used within the pages content
Words from the H1 heading are not used in the page content.
There are 2 text duplicates on this page:
  • Duplicate: Collaboration in action: McLaren Racing and Sanofi M&S Teams working t...
This page contains 644 words. That's ok.
25.6% of the text are stop words.
The page contains a listing, which indicates a good text layout.
5 paragraphs were found on this page.
No placeholders texts or images were found.
The average number of words per sentence of 20.29 words is good.
Frames
(Critically important)
This page does not use a frameset.
Mobile optimization
(Somewhat important)
A viewport "width=device-width,initial-scale=1" is provided.
At least one Apple touch icon is specified.
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)
9 images have no alt attribute. The content of alt attributes is used by search engines.
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
...en-racing_20250206092215.jpg?size=xlargeNo alt attribute provided
...monBuxton_20250527131839.png?size=mediumA scientist examines a petri dish under bright light in a lab. Digital data streams flow from the dish to a computer screen.
...ns-sanofi_20250522123026.jpg?size=mediumNo alt attribute provided
...goa-india_20250327170304.jpg?size=mediumNo alt attribute provided
img.youtube.com/vi/KUkgTnzhq7w/0.jpgNo alt attribute provided
...trategy-4_20230515142620.jpg?size=mediumNo alt attribute provided
...current-2_20230515141246.jpg?size=mediumNo alt attribute provided
...th-banner_20230516110943.jpg?size=mediumNo alt attribute provided
...ct-banner_20240301100405.jpg?size=mediumNo alt attribute provided
...-thumbnail_20240515151016.jpg?size=largeNo alt attribute provided

Page structure

H1 heading
(Critically important)
Driving Excellence in Biopharma
The H1 heading is perfect.
Headings
(Important)
The heading structure is perfect.

Heading structure

Heading levelContent
H1 Driving Excellence in Biopharma
H2 Our Latest Stories
H2 United by Purpose
H2 About Us
H2 Our Pipeline
H2 Pursue Progress. Discover Extraordinary.
H2 Our Latest Press Releases
H3 A New Era of Biopharma Production with AI
H3 Why Patient Engagement is Critical to Manufacturing & Supply
H3 How Eco-Design Makes for a Healthier and More Sustainable World
H3 Who We Are
H3 Our Science
H3 Your Health
H3 Our Commitment
H3 5
H3 86
H3 24
Some anchor texts are used more than once.
4 links don't have an anchor text.
There are 4 links with a trivial anchor text.
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 11 external links on this page.

Found links on this page

LinkAttributesAnchor text
https://www.sanofi.com/enA-TITLE Back to the sanofi.com homepage
/en/our-companyOur Company
/en/our-company/our-strategyOur Strategy
/en/our-company/governanceGovernance
/en/our-company/governance/boa...Board of Directors
/en/our-company/governance/exe...Executive Committee
/en/our-company/governance/spe...Specialist Committees
/en/our-company/sustainabilitySustainability
/en/our-company/sustainability...Sustainable and Equitable Access to Healthcare
/en/our-company/sustainability...Environmental Impact and Healthcare Systems’ Resilience
/en/our-company/sustainability...Code of Conduct and Responsible Business
/en/our-company/sustainability...Diversity, Equity, and Inclusion In and Beyond the Workplace
/en/our-company/sustainability...Global Health Unit
/en/our-company/our-legacyOur Legacy
/en/our-scienceOur Science
/en/our-science/our-pipelineOur Pipeline
/en/our-science/rd-focus-areasOur R&D Focus
/en/our-science/rd-focus-areas...Immunology R&D
/en/our-science/rd-focus-areas...Neurology R&D
/en/our-science/rd-focus-areas...Oncology R&D
/en/our-science/rd-focus-areas...Rare Blood Disorders R&D
/en/our-science/rd-focus-areas...Rare Diseases R&D
/en/our-science/rd-focus-areas...Vaccines R&D
/en/our-science/rd-focus-areas...Artificial Intelligence in R&D
/en/our-science/technology-pla...Technology Platforms
/en/our-science/clinical-trial...Clinical Trials & Results
https://www.sanofistudies.com/...New window External Subdomain Find a Clinical Trial
/en/our-science/clinical-trial...Clinical Study Results
/en/our-science/clinical-trial...Investigator Sponsored Studies
/en/our-science/clinical-trial...Diversity in Clinical Trials
/en/our-science/scientific-col...Scientific Collaboration
/en/our-science/scientific-col...Scientific Collaboration in North America
/en/our-science/scientific-col...Scientific Collaboration in Europe
/en/our-science/scientific-col...Scientific Collaboration in China
/en/our-science/digitalDigital
/en/our-science/manufacturing-...Manufacturing and Supply
/en/our-science/manufacturing-...Vaccines Manufacturing and Supply
/en/your-healthYour Health
/en/your-health/vaccinesVaccines & Infectious Diseases
/en/your-health/vaccines/influ...Influenza
/en/your-health/vaccines/menin...Meningococcal Meningitis
/en/your-health/vaccines/pertu...Pertussis
/en/your-health/vaccines/respi...Respiratory Syncytial Virus (RSV)
/en/your-health/vaccines/why-v...Why Vaccines Matter
/en/your-health/medicinesMedicines
/en/your-health/medicines/immu...Immunology
/en/your-health/medicines/neur...Neurology
/en/your-health/medicines/onco...Oncology
/en/your-health/medicines/rare...Rare Blood Disorders
/en/your-health/medicines/rare...Rare Diseases
/en/your-health/medicines/card...Cardiovascular Diseases
/en/your-health/medicines/diab...Diabetes
/en/your-health/patient-engage...Patient Engagement
/en/your-health/healthcare-pro...Healthcare Professionals Support
/en/your-health/healthcare-pro...Managed Access Programs (MAPs)
/en/your-health/healthcare-pro...Pre-Registration Import Licenses
/en/your-health/healthcare-pro...Post Trial Access (PTA)
https://www.opella.com/enNew window External Subdomain Consumer Healthcare (Opella)
/en/partneringPartnering
/en/partnering/partnering-focu...Partnering Focus Areas
/en/partnering/partnering-focu...China
/en/partnering/partnering-focu...Text duplicate Digital
/en/partnering/partnering-focu...General Medicines
/en/partnering/partnering-focu...Text duplicate Immunology
/en/partnering/partnering-focu...Neuroscience
/en/partnering/partnering-focu...Text duplicate Oncology
/en/partnering/partnering-focu...Out-Licensing
/en/partnering/partnering-focu...Rare Disease
/en/partnering/partnering-focu...Text duplicate Technology Platforms
/en/partnering/partnering-focu...Vaccines
/en/partnering/meet-the-partne...Meet the Partnering Team
/en/partnering/contact-busines...Contact Business Development Team
/en/media-roomMedia
/en/magazineSubdomain Stories
/en/media-room/press-releasesPress Releases
/en/media-room/contactContacts
/en/investorsInvestors
/en/investors/news-eventsNews and Events
/en/media-room/press-releasesSubdomain News
/en/investors/news-events/upco...Upcoming Events
/en/investors/news-events/past...Past Events
/en/investors/sanofi-share-and...Shares, ADRs and Bonds
/en/investors/sanofi-share-and...Share Price
/en/investors/sanofi-share-and...Shares, Structure and Vote
/en/investors/sanofi-share-and...Share Repurchases
/en/investors/sanofi-share-and...American Depositary Receipts
/en/investors/sanofi-share-and...Dividend
/en/investors/sanofi-share-and...Analyst Coverage and Vara Consensus
/en/investors/sanofi-share-and...Bonds
/en/investors/financial-report...Financial Reports and Other Publications
/en/investors/environment-soci...Environment, Social, Governance
/en/investors/individual-share...Private Shareholders
/en/investors/contactsContacts and Subscription
https://jobs.sanofi.com/External Subdomain Careers
/en/magazine/our-science/drivi...Discover more
A-TITLE Driving Excellence in Biopharma: Our Formula for Success with McLaren Racing
/en/magazineRead our latest articles
A-TITLE Stories
/en/magazine/our-science/a-new...Read the article
A-TITLE A New Era of Biopharma Production with AI
/en/magazine/your-health/patie...Text duplicate Read the article
A-TITLE Why Patient Engagement is Critical to Manufacturing & Supply
/en/magazine/sustainability/ho...Text duplicate Read the article
A-TITLE How Eco-Design Makes for a Healthier and More Sustainable World
/en/our-company/our-strategyNew window Trivial anchor text
Read more
A-TITLE Our Strategy
/en/our-scienceText duplicate Trivial anchor text
Read more
A-TITLE Our science
/en/your-healthNew window Text duplicate Trivial anchor text
Read more
A-TITLE Your Health
/en/our-company/sustainabilityNew window Text duplicate Trivial anchor text
Read more
A-TITLE Sustainability
/en/our-science/our-pipelineExplore our pipeline
A-TITLE Our Pipeline
https://jobs.sanofi.com/enNew window External Subdomain Explore Career Opportunities
A-TITLE https://jobs.sanofi.com/en
/en/media-room/press-releases/...Read the Press Release
A-TITLE Press Release: ASCO: new Sarclisa data support subcutaneous administration with on-body injector
/assets/dotcom/pressreleases/2...New window No Text
/en/media-room/press-releases/...Text duplicate Read the Press Release
A-TITLE Press Release: Rilzabrutinib granted orphan drug designation in the US for sickle cell disease
/assets/dotcom/pressreleases/2...New window No Text
/en/media-room/press-releases/...Text duplicate Read the Press Release
A-TITLE Press Release: Sanofi to acquire Blueprint Medicines, expanding portfolio in rare immunological disease and adding early-stage pipeline in immunology
/assets/dotcom/pressreleases/2...New window No Text
/en/media-room/press-releases/...Text duplicate Read the Press Release
A-TITLE Press Release: Itepekimab met the primary endpoint in one of two COPD phase 3 studies
/assets/dotcom/pressreleases/2...New window No Text
/en/media-room/press-releasesSee all press releases
A-TITLE Press Releases
https://www.linkedin.com/compa...New window External Subdomain A-TITLE Sanofi on Linkedin
https://twitter.com/sanofiNew window External A-TITLE Sanofi on Twitter
https://www.instagram.com/sanofi/New window External Subdomain A-TITLE Sanofi on Instagram
https://www.facebook.com/SanofiNew window External Subdomain A-TITLE Sanofi on Facebook
https://www.tiktok.com/@sanofiNew window External Subdomain A-TITLE Sanofi on TikTok
https://www.youtube.com/@sanofiNew window External Subdomain A-TITLE Sanofi on Youtube
/en/magazineText duplicate Stories
https://www.sanofi.com/en/contactContact
/en/legal-noticeLegal notice
/en/privacy-and-data-protectionPrivacy & data protection
/en/data-privacyCookies Policy
/en/publicationsOur publications
/en/directoryDirectory
https://www.sanofi.com/en/sitemapSitemap
/en/accessibility-partial-comp...Accessibility: partial compliance
https://www.codeofconduct.sanofi/New window External Subdomain Code of Conduct

Server configuration

HTTP redirects
(Critically important)
This page redirects to "https://www.sanofi.com/en"
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 0.25 seconds.
The file size of the HTML document is fine (210 kB).

HTTP Response Header

NameValue
content-typetext/html
dateThu, 05 Jun 2025 05:44:07 GMT
cache-controlmax-age=180, s-maxage=180
content-security-policydefault-src https: 'unsafe-eval' 'unsafe-inline' 'self' ws: data:; worker-src blob:; object-src 'none'; frame-ancestors 'none'
apigw-requestidLrQ6OgB2IAMEcWg=
content-encodinggzip
varyAccept-Encoding
x-cacheHit from cloudfront
via1.1 256cd380c9790a2b71d68709829caa18.cloudfront.net (CloudFront)
x-amz-cf-popFRA60-P7
x-amz-cf-idIZOXZHzfSh6ow2JZTudDnfIC_AHyqo__KEH56mkhhdPAbOYmAddTpw==
age138
x-xss-protection1; mode=block
x-frame-optionsSAMEORIGIN
referrer-policystrict-origin-when-cross-origin
x-content-type-optionsnosniff
strict-transport-securitymax-age=31536000
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 1,971 referring domains.
This page has 58,481 backlinks.
This page has backlinks from 1,487 different ip addresses.

Links from Wikipedia

You can find more links using Wikipedia search

Robots.txt

User-agent: *
Allow: /

Sitemap: https://www.sanofi.com/sitemap-index.xml

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Search preview

www.sanofi.com
R&D-Driven and AI-Powered Biopharma Company | Sanofi
Sanofi is a research & development-driven, AI-powered healthcare biopharma company committed to improving lives through innovative medicines & vaccines.

Most important keywords

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

KeywordResultRecheck
biopharma79%Check
biopharma company71%Check
AI-powered biopharma70%Check
AI-powered biopharma company67%Check
Sanofi64%Check
biopharma company committed62%Check
Company58%Check
AI-powered58%Check
Health56%Check
excellence52%Check
Show more keywords and terms

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