Humannaturelab.net - SEO Checker

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Overview of the SEO Check
Meta information
80% 
Page quality
79% 
Page structure
62% 
Link structure
81% 
Server
30% 
External factors
100% 
SEO Score
Response time
0.71 s
File size
49.40 kB
Words
537
Media files
14
Number of links
66 internal / 10 external

Task list of SEO Improvements

Meta specifications

Title
(Critically important)
Home page | Human Nature Lab | Human Nature Lab at Yale
There are word repetitions in the page title.
The length of the page title is perfect. (543 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://humannaturelab.net/
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)
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
GeneratorDrupal 10 (https://www.drupal.org)
MobileOptimizedwidth
HandheldFriendlytrue
viewportwidth=device-width, initial-scale=1.0
langen
charsetutf-8

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Page quality

Content
(Critically important)
Some words from the page title are not used within the pages content
This page contains 537 words. That's ok.
30.5% of the text are stop words.
Words from the H1 heading are used in the page content.
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 13.86 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)
Some tags are too long. With 114 characters this one is longer than 70 characters:
"we develop and apply novel insights about aspects of human nature that relate to our interactions with..."
Image SEO
(Somewhat important)
4 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
/themes/custom/hnl_theme/logo.svg"Human
...4-02/christakis_home_m.png?itok=KidYtwhYNicholas A. Christakis
...ublic/2025-02/Honduras.png?itok=xYr6B73uNo alt attribute provided
...24-03/Rectangle 151(1).png?itok=pBidvlMxNo alt attribute provided
...2025-02/breadboard (1).png?itok=DP6f5beKNo alt attribute provided
...c/2024-05/NIH-Symbol_1.png?itok=d_7whEJ7"Sponsor""Sponsor"
...Foundation-Logo.svg_-1.png?itok=0uGu8ATu"Sponsor""Sponsor"
...pe-EMAIL-120-768x646_2.png?itok=yLDDXT5S"Sponsor""Sponsor"
.../2024-05/Tata_logo.svg.png?itok=u0zFi5am"Sponsor""Sponsor"
.../public/2024-05/rwjf_2.png?itok=WsCXVmhD"Sponsor""Sponsor"
...119e5613-1569064075413.png?itok=2aJ17g41"Sponsor""Sponsor"
/themes/custom/hnl_theme/logo-hnl.svgNo alt attribute provided
Video URLWidthHeight
...fault/files/videos/2025-02/hero-home.mp4
...ages/core/src/video/yale-hnl-footer.webm

Page structure

H1 heading
(Critically important)
HUMAN NATURE LAB
The H1 heading is too short (16 characters). It should be at least 20 Characters long.
Headings
(Important)
The structure of headings is missing one or more levels. Do not skip heading levels.
There are 32 headings on the page. The amount of headings should be in a more proper relation to the amount of text.

Heading structure

Heading levelContent
H1 HUMAN NATURE LAB
H2 Nicholas A. Christakis
H2 Overview of research areas in the Human Nature Lab
H2 Experiments with Online Networks
H2 Hybrid Systems of Humans and AI Agents
H2 Experiments with Face-to-Face Networks
H2 Biology of Social Interactions
H2 Computational Social Science
H2 Network Methodology
H2 Featured publications
H2 Social Network Biology and Human Chemosignaling
H2 Network science improving health in Honduras
H2 Breadboard
H2 Sponsors
H3 Our work throughout the world
H3 Education for students at all levels
H5 Search:
H6 Gut Microbiome Strain-sharing within Isolated Village Social Networks (Nature, 2024)
H6 Induction of Social Contagion Across Diverse Outcomes in Structured Experiments in Isolated Honduras Villages (Science, 2024)
H6 Algorithms for seeding social networks can enhance the adoption of a public health intervention in urban India (PNAS, 2022)
H6 Locally Noisy Autonomous Agents Improve Global Human Coordination in Network Experiments (Nature, 2017)
H6 Inequality and Visibility of Wealth in Experimental Social Networks (Nature, 2015)
H6 Friendship and Natural Selection (PNAS, 2014)
H6 Social Networks and Cooperation in Hunter-Gatherers (Nature, 2012)
H6 Dynamic Social Networks Promote Cooperation in Experiments with Humans (PNAS, 2011)
H6 Cooperative Behavior Cascades in Human Social Networks (PNAS, 2010)
H6 Blueprint: The Evolutionary Origins of a Good Society
H6 Apollo's Arrow: The Profound and Enduring Impact of Coronavirus on the Way We Live
H6 Connected
H6 Death Foretold: Prophecy and Prognosis in Medical Care
H6 Oxford Textbook of Palliative Medicine
H6 Prognosis in Advanced Cancer
Some internal link anchor texts are too long.
Some anchor texts are used more than once.
The number of internal links is ok.
All internal links are not using dynamic parameters.
There are 10 external links on this page.

Found links on this page

LinkAttributesAnchor text
https://humannaturelab.net/Anchor Skip to main content
https://humannaturelab.net/IMG-ALT "Human
/researchResearch
/directorDirector
/personnelPersonnel
/publicationsPublications
https://humannaturelab.net/papersPapers
https://humannaturelab.net/booksBooks
/book-chaptersChapters
/commentsComments
/outreachOutreach
/classesClasses
https://humannaturelab.net/videoPublic Lectures
/symposiaSymposia
https://humannaturelab.net/pressPress
/interviewsInterviews
/editorial-opinionEditorial Opinion
https://humannaturelab.net/toolsTools
https://www.instagram.com/huma...New window External Subdomain Instagram
https://www.flickr.com/photos/...New window External Subdomain Flickr
https://www.youtube.com/channe...New window External Subdomain Youtube
https://twitter.com/nachristakisNew window External X
https://github.com/human-natur...New window External Github
https://humannaturelab.net/Anchor No Text
/directorView more
/researchText duplicate View more
/experiments-with-online-networksLearn More
/hybrid-systems-of-humans-and-...Text duplicate Learn More
/experiments-with-face-to-face...Text duplicate Learn More
/biology-of-social-interactionsText duplicate Learn More
/computational-social-scienceText duplicate Learn More
/network-methodologyText duplicate Learn More
/publicationsText duplicate View more
/paper/gut-microbiome-strain-s...Gut Microbiome Strain-sharing within Isolated Village Social Networks (Nature, 2024)
/paper/induction-of-social-con...Induction of Social Contagion Across Diverse Outcomes in Structured Experiments in Isolated Honduras Villages (Science, 2024)
/paper/algorithms-for-seeding-...Algorithms for seeding social networks can enhance the adoption of a public health intervention in urban India (PNAS, 2022)
/paper/locally-noisy-autonomou...Locally Noisy Autonomous Agents Improve Global Human Coordination in Network Experiments (Nature, 2017)
/paper/inequality-and-visibili...Inequality and Visibility of Wealth in Experimental Social Networks (Nature, 2015)
/paper/friendship-and-natural-...Friendship and Natural Selection (PNAS, 2014)
/paper/social-networks-and-coo...Social Networks and Cooperation in Hunter-Gatherers (Nature, 2012)
/paper/dynamic-social-networks...Dynamic Social Networks Promote Cooperation in Experiments with Humans (PNAS, 2011)
/paper/cooperative-behavior-ca...Cooperative Behavior Cascades in Human Social Networks (PNAS, 2010)
https://humannaturelab.net/papersView all Papers
/book/blueprint-evolutionary-o...Blueprint: The Evolutionary Origins of a Good Society
/book/apollos-arrow-profound-a...Apollo's Arrow: The Profound and Enduring Impact of Coronavirus on the Way We Live
/book/connectedConnected
/book/death-foretold-prophecy-...Death Foretold: Prophecy and Prognosis in Medical Care
/book/oxford-textbook-palliati...Oxford Textbook of Palliative Medicine
/book/prognosis-advanced-cancerPrognosis in Advanced Cancer
https://humannaturelab.net/booksView all Books
/making-of/social-network-biol...View More
/making-of/network-science-imp...Text duplicate View More
/making-of/breadboardText duplicate View More
/sponsorsText duplicate View more
/outreachText duplicate View more
https://humannaturelab.net/No Text
https://humannaturelab.net/Home
/researchText duplicate Research
/publicationsText duplicate Publications
/personnelText duplicate Personnel
https://humannaturelab.net/toolsText duplicate Tools
/outreachText duplicate Outreach
https://humannaturelab.net/booksText duplicate Books
/sponsorsSponsors
/contactContact
https://humannaturelab.net/videoVideos & Audios
/directorText duplicate Director
https://humannaturelab.net/pressText duplicate Press
/headshot-and-biosHeadshots & Bios
/editorial-opinionText duplicate Editorial Opinion
https://humannaturelab.net/yinsYINS
https://www.instagram.com/huma...New window External Subdomain Text duplicate Instagram
https://www.flickr.com/photos/...New window External Subdomain Text duplicate Flickr
https://www.youtube.com/channe...New window External Subdomain Text duplicate Youtube
https://twitter.com/nachristakisNew window External Text duplicate X
https://github.com/human-natur...New window External Text duplicate Github

Server configuration

HTTP redirects
(Critically important)
This page redirects to "https://humannaturelab.net/"
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 0.71 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 (49 kB).

HTTP Response Header

NameValue
cache-controlmust-revalidate, no-cache, private
content-languageen
content-typetext/html; charset=UTF-8
dateFri, 28 Mar 2025 03:52:33 GMT
expiresSun, 19 Nov 1978 05:00:00 GMT
strict-transport-securitymax-age=0
traceresponse00-1830db18548dcbe58cdcd09ffea89e13-34e8ed4adb2304e7-01
x-content-type-optionsnosniff
x-debug-infoeyJyZXRyaWVzIjowfQ==
x-drupal-cacheHIT
x-drupal-dynamic-cacheHIT
x-frame-optionsSAMEORIGIN
x-generatorDrupal 10 (https://www.drupal.org)
x-platform-cacheMISS
x-platform-clusterh7gumvziji5de-main-bvxea6i
x-platform-processorvbzp47p7pqbb7xsklmdwiny34m
x-platform-router3pdcc4muiaf3hpcxk5jdm66meu
content-length50555
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 353 referring domains.
This page has 1,856 backlinks.
This page has backlinks from 258 different ip addresses.

Links from Wikipedia

You can find more links using Wikipedia search

Robots.txt

No valid Robots.txt file was found.

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Most important keywords

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

KeywordResultRecheck
HUMAN86%Check
human nature85%Check
NATURE84%Check
HUMAN NATURE LAB83%Check
LAB79%Check
Human Nature Lab lies73%Check
human social networks56%Check
Yale45%Check
Public44%Check
Honduras44%Check
Show more keywords and terms

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