Art21.org - SEO Checker

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Overview of the SEO Check
Meta information
77% 
Page quality
78% 
Page structure
58% 
Link structure
25% 
Server
78% 
External factors
100% 
SEO Score
Response time
1.04 s
File size
81.50 kB
Words
914
Media files
30
Number of links
135 internal / 25 external

Task list of SEO Improvements

Meta specifications

Title
(Critically important)
Art21
The page title is too short. (48 pixels of 580 max pixel length) Optimize title
The page title is only one word.
There are no duplicate words in the title
Meta description
(Critically important)
The mission of Art21 is to educate and expand access to contemporary art through the production of documentary films, resources, and public programs.
The length of the meta description is perfect. (938 pixels out of 1000 max pixel length)
Crawlability
(Critically important)
There are no problems in accessing the website.
Canonical URL
(Important)
https://art21.org/
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)
No favicon is linked in the HTML code.

Meta tags

NameValue
viewportwidth=device-width,initial-scale=1
robotsmax-image-preview:large
descriptionThe mission of Art21 is to educate and expand access to contemporary art through the production of documentary films, resources, and public programs.
langen
twitter:cardsummary
twitter:descriptionThe mission of Art21 is to educate and expand access to contemporary art through the production of documentary films, resources, and public programs.
twitter:titleArt21
twitter:site@art21
twitter:imagehttps://art21.org/wp-content/uploads/2024/05/Phyllida-Barlow-Social-Icon.png
fb:app_id129395603297
og:titleArt21
og:descriptionThe mission of Art21 is to educate and expand access to contemporary art through the production of documentary films, resources, and public programs.
og:site_nameArt21
og:typearticle
og:urlhttps://art21.org/
og:imagehttps://art21.org/wp-content/uploads/2024/05/Phyllida-Barlow-Social-Icon.png
og:image:width1200
og:image:height630
charsetutf-8

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Page quality

Content
(Critically important)
These Typos were found:
  • wanna => want to
The average number of words per sentence of 27.5 words is high.
This page contains 914 words. That's ok.
25.9% of the text are stop words.
The page contains a listing, which indicates a good text layout.
3 paragraphs were found on this page.
The text content is perfect.
No placeholders texts or images were found.
There are no duplicates on the site.
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 18 tags for this page.
Image SEO
(Somewhat important)
29 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
...ads/2025/06/ford-film-lead-1-450x253.jpgNo alt attribute provided
...ads/2025/06/ford-film-lead-1-450x253.jpgNo alt attribute provided
.../uploads/2025/06/IWBWYE-lead-450x253.jpgNo alt attribute provided
...04/Art21-AJafa1.00_06_38_01-450x253.jpegNo alt attribute provided
...HyereeRo_4.00_00_51_04_edit-450x253.jpegNo alt attribute provided
...ENTS_TEXTLESS.00_00_43_09-1-450x253.jpegNo alt attribute provided
...01_05-scaled-e1739483008524-450x253.jpegNo alt attribute provided
...-MJuly-WhatElse.00_02_56_11-450x253.jpegNo alt attribute provided
...1_SE_FixingTime.00_07_12_08-450x253.jpegNo alt attribute provided
....8.2024.00_00_14_14.Still001-450x253.jpgNo alt attribute provided
...-HadiFalapishi1.00_06_38_15-450x270.jpegNo alt attribute provided
...livio_Art21-2_2.00_04_40_07-450x253.jpegNo alt attribute provided
...Stills.00_05_33_11.Still026-450x253.jpegNo alt attribute provided
...rakeCarr-NYCU_2.00_02_55_01-450x253.jpegNo alt attribute provided
...221_UHD_h.264.00_53_33_06-1-450x253.jpegNo alt attribute provided
....12.22.00_08_14_11.Still185-450x253.jpegNo alt attribute provided
...yKha_BitsPieces_00_01_10_20-450x253.jpegNo alt attribute provided
...ls-00_07_31_02-lead-no-title-450x253.jpgNo alt attribute provided
...guan-beijing-v11_00_32_57_12-450x253.jpgNo alt attribute provided
...2/dzama-artistatwork-chaos-5-450x253.jpgNo alt attribute provided
...ovillani-field-still-999-001-450x253.jpgNo alt attribute provided
...ahSze_1920x1080.00_04_04_12-450x253.jpegNo alt attribute provided
...AYA_NYCLOSEUP_1.00_02_20_19-450x253.jpegNo alt attribute provided
...ot-2022-03-23-at-10.12.21-AM-450x253.pngNo alt attribute provided
...ty.00_07_11_06-lead-no-title-450x253.jpgNo alt attribute provided
...EXTLESS.00_11_38_01.Still001-450x253.jpgNo alt attribute provided
...on-lead-00_45_24_04-no-title-450x253.jpgNo alt attribute provided
...-discourse-lead-035-no-title-450x253.jpgNo alt attribute provided
...16/10/gordon-looks-still-024-450x253.jpgNo alt attribute provided
...ploads/2025/02/candid-seal-gold-2025.pngGold Transparency 2025 Candid badge with a gold border and white center displaying the text.

Page structure

H1 heading
(Critically important)
The H1 heading is empty
Headings
(Important)
Some headings occur twice on the page.
There are 52 headings on the page. The amount of headings should be in a more proper relation to the amount of text.
Some headings do not have any content.

Heading structure

Heading levelContent
H1 Empty heading
H1 Welcome to your watchlist
H1 Donate to Art21
H2 Our Series
H2 Art21.live
H2 Playlists
H2 Art21 Library
H2 Featured this week
H2 Latest films
H2 Pop Culture
H2 Playlists Duplicate text
H2 Collage
H2 Teaching with Contemporary Art
H2 News
H2 Our Series Duplicate text
H2 Art21.live Duplicate text
H2 Playlists Duplicate text
H2 Art21 Library Duplicate text
H3 Things Don't Have to Be Like This
H3 Ann Hamilton in "Spirituality"
H3 Things Don't Have to Be Like This Duplicate text
H3 I Wanna Be With You Everywhere
H3 Sequencing the Notes
H3 Hyeree Ro's Precise Ambiguity
H3 Singular Moments
H3 Guadalupe Maravilla’s "Mariposa Relámpago"
H3 What Else Might You Do?
H3 Fixing Time
H3 Inner Circle
H3 Sincerely Yours, Hadi Falapishi
H3 Radical Transparency
H3 Ilana Harris-Babou’s Guide to Health & Happiness
H3 Drake Carr's Favorite Thing
H3 Alex Da Corte in “Everyday Icons”
H3 Diane Severin Nguyen’s Transfigurations
H3 Tommy Kha's Bits & Pieces
H3 Adam Milner Takes Care of the Details
H3 Guan Xiao in "Beijing"
H3 Organizing Chaos
H3 Jamian Juliano-Villani’s Field Work
H3 Teaching with Global/Local Connections
H3 Emotional Time
H3 Joiri Minaya’s Pattern Making
H3 Drifting Free
H3 The Edge of Legibility
H3 Between the Earth and the Sky
H3 Christian Marclay in "London"
H3 Part of the Discourse
H3 Daniel Gordon Looks Back
H3 A Constellation of Quiet Power
H4 Your watchlist
H4 Latest Video
H4 Empty heading
H4 Watch again
H4 Empty heading
Some internal link anchor texts are too long.
Some anchor texts are used more than once.
30 links don't have an anchor text.
The number of internal links is ok.
All internal links are not using dynamic parameters.
There are 25 external links on this page.

Found links on this page

LinkAttributesAnchor text
https://art21.org/A-TITLE Art21
https://art21.org/watch/Watch
https://art21.org/read/Read
https://art21.org/explore/Explore
https://art21.org/artists/Artists
https://art21.org/about/About
https://art21.org/news/News
/for-educators/initiatives/cal...Calendar
https://art21.org/for-educators/For Educators
/screening-society/Screening Society
https://art21.org/about/awards/Awards
https://art21.live/External Watch live
https://shop.art21.org/External Subdomain Shop
https://art21.org/give/Donate
/series/art-in-the-twenty-firs...Art in the Twenty-First Century
/series/extended-playExtended Play
/series/new-york-close-upNew York Close Up
/series/artist-to-artistArtist to Artist
/series/william-kentridge-anyt...William Kentridge: Anything Is Possible
https://art21.org/series/specialsSpecials
https://art21.live/New window External Art21.live
https://art21.org/playlistsPlaylists
https://art21.org/watchArt21 Library
/watch/specials/things-dont-ha...No Text
/watch/specials/things-dont-ha...Things Don't Have to Be Like This
/series/specials/Text duplicate Specials
/watch/art-in-the-twenty-first...Ann Hamilton in "Spirituality"
/watch/art-in-the-twenty-first...Text duplicate Ann Hamilton in "Spirituality"
/series/art-in-the-twenty-firs...Text duplicate Art in the Twenty-First Century
/series/art-in-the-twenty-firs...Season 1
/watch/specials/things-dont-ha...No Text
/watch/specials/things-dont-ha...Text duplicate Things Don't Have to Be Like This
/watch/new-york-close-up/i-wan...No Text
/watch/new-york-close-up/i-wan...I Wanna Be With You Everywhere
/watch/extended-play/arthur-ja...No Text
/watch/extended-play/arthur-ja...Sequencing the Notes
/watch/new-york-close-up/hyere...No Text
/watch/new-york-close-up/hyere...Hyeree Ro's Precise Ambiguity
/watch/extended-play/amy-shera...No Text
/watch/extended-play/amy-shera...Singular Moments
/watch/new-york-close-up/guada...No Text
/watch/new-york-close-up/guada...Guadalupe Maravilla’s "Mariposa Relámpago"
/watch/extended-play/miranda-j...No Text
/watch/extended-play/miranda-j...What Else Might You Do?
/watch/extended-play/salah-elm...No Text
/watch/extended-play/salah-elm...Fixing Time
/watch/extended-play/howardena...No Text
/watch/extended-play/howardena...Inner Circle
/watch/new-york-close-up/since...No Text
/watch/new-york-close-up/since...Sincerely Yours, Hadi Falapishi
/watch/new-york-close-up/puppi...No Text
/watch/new-york-close-up/puppi...Radical Transparency
/watch/new-york-close-up/ilana...No Text
/watch/new-york-close-up/ilana...Ilana Harris-Babou’s Guide to Health & Happiness
https://shop.art21.org/collect...New window External Subdomain Artists & the Unknown
/watch/new-york-close-up/drake...No Text
/watch/new-york-close-up/drake...Drake Carr's Favorite Thing
/watch/art-in-the-twenty-first...No Text
/watch/art-in-the-twenty-first...Alex Da Corte in “Everyday Icons”
/watch/new-york-close-up/diane...No Text
/watch/new-york-close-up/diane...Diane Severin Nguyen’s Transfigurations
/watch/new-york-close-up/tommy...No Text
/watch/new-york-close-up/tommy...Tommy Kha's Bits & Pieces
/watch/new-york-close-up/adam-...No Text
/watch/new-york-close-up/adam-...Adam Milner Takes Care of the Details
/watch/art-in-the-twenty-first...No Text
/watch/art-in-the-twenty-first...Guan Xiao in "Beijing"
/watch/extended-play/marcel-dz...No Text
/watch/extended-play/marcel-dz...Organizing Chaos
/watch/new-york-close-up/jamia...No Text
/watch/new-york-close-up/jamia...Jamian Juliano-Villani’s Field Work
/theme/pop-culture/Pop Culture
/playlist/teaching-with-global...Teaching with Global/Local Connections
/playlist/teaching-with-global...No Text
/playlist/teaching-with-global...Text duplicate Teaching with Global/Local Connections
/watch/extended-play/sarah-sze...No Text
/watch/extended-play/sarah-sze...Emotional Time
/watch/new-york-close-up/joiri...No Text
/watch/new-york-close-up/joiri...Joiri Minaya’s Pattern Making
/watch/extended-play/nicholas-...No Text
/watch/extended-play/nicholas-...Drifting Free
/watch/new-york-close-up/kamee...No Text
/watch/new-york-close-up/kamee...The Edge of Legibility
/watch/extended-play/wangechi-...No Text
/watch/extended-play/wangechi-...Between the Earth and the Sky
/watch/art-in-the-twenty-first...No Text
/watch/art-in-the-twenty-first...Christian Marclay in "London"
/watch/extended-play/barbara-k...No Text
/watch/extended-play/barbara-k...Part of the Discourse
/watch/new-york-close-up/danie...No Text
/watch/new-york-close-up/danie...Daniel Gordon Looks Back
https://art21.org/medium/collage/Collage
/read/a-constellation-of-quiet...A Constellation of Quiet Power
/read/a-constellation-of-quiet...Text duplicate A Constellation of Quiet Power
https://art21.org/news/Text duplicate News
https://art21.org/news/All News
/2025/07/24/2025-art21-educato...2025 Art21 Educators Institute
/2025/07/22/things-dont-have-t...“Things Don’t Have to Be Like This” Screening and Reception
/2025/07/14/art21-2025-fall-pr...Art21’s Fall Program to Feature New Documentaries, Screenings, Artist Talks, and Launch of Season 12 of its Acclaimed Broadcast Series “Art in the Twenty-Fir...
https://art21.org/watch/Text duplicate Watch
https://art21.org/read/Text duplicate Read
https://art21.org/explore/Text duplicate Explore
https://art21.org/artists/Text duplicate Artists
https://art21.org/about/Text duplicate About
https://art21.org/news/Text duplicate News
https://art21.org/for-educators/Text duplicate For Educators
/screening-society/Text duplicate Screening Society
https://shop.art21.org/External Subdomain Text duplicate Shop
https://art21.org/give/Give
https://www.facebook.com/art21/External Subdomain Facebook
https://x.com/art21External X (Twitter)
https://www.instagram.com/art21External Subdomain Instagram
https://www.tiktok.com/@art21External Subdomain TikTok
https://www.linkedin.com/compa...External Subdomain LinkedIn
https://www.youtube.com/user/a...External Subdomain YouTube
https://art21.live/External Text duplicate Watch live
https://www.pbs.org/art21/External Subdomain Television series on PBS
https://www.guidestar.org/prof...External Subdomain IMG-ALT Gold Transparency 2025 Candid badge with a gold border and white center displaying the text.
https://art21.org/terms-of-use/Terms of Use
https://art21.org/privacy-policy/Privacy Policy
/about/accessibility-at-art21/Accessibility
/about/licensing-and-reproduct...Licensing and Reproduction
https://art21.org/about/press/Press
/about/contact-us/Contact Us
https://art21.org/watch/Text duplicate Watch
https://art21.org/read/Text duplicate Read
https://art21.org/explore/Text duplicate Explore
https://art21.org/artists/Text duplicate Artists
https://art21.org/about/Text duplicate About
https://art21.org/news/Text duplicate News
/for-educators/initiatives/cal...Text duplicate Calendar
https://art21.org/for-educators/Text duplicate For Educators
/screening-society/Text duplicate Screening Society
https://art21.org/about/awards/Text duplicate Awards
https://art21.live/External Text duplicate Watch live
https://shop.art21.org/External Subdomain Text duplicate Shop
https://art21.org/give/Text duplicate Donate
https://www.facebook.com/art21/External Subdomain Text duplicate Facebook
https://x.com/art21External Text duplicate X (Twitter)
https://www.instagram.com/art21External Subdomain Text duplicate Instagram
https://www.tiktok.com/@art21External Subdomain Text duplicate TikTok
https://www.linkedin.com/compa...External Subdomain Text duplicate LinkedIn
https://www.youtube.com/user/a...External Subdomain Text duplicate YouTube
https://art21.live/External Text duplicate Watch live
https://www.pbs.org/art21/External Subdomain Text duplicate Television series on PBS
https://art21.org/terms-of-use/Text duplicate Terms of Use
https://art21.org/privacy-policy/Text duplicate Privacy Policy
/about/accessibility-at-art21/Text duplicate Accessibility
/about/licensing-and-reproduct...Text duplicate Licensing and Reproduction
https://art21.org/about/press/Text duplicate Press
/about/contact-us/Text duplicate Contact Us
/series/art-in-the-twenty-firs...Text duplicate Art in the Twenty-First Century
/series/extended-playText duplicate Extended Play
/series/new-york-close-upText duplicate New York Close Up
/series/artist-to-artistText duplicate Artist to Artist
/series/william-kentridge-anyt...Text duplicate William Kentridge: Anything Is Possible
https://art21.org/series/specialsText duplicate Specials
https://art21.live/New window External Text duplicate Art21.live
https://art21.org/playlistsText duplicate Playlists
https://art21.org/watchText duplicate Art21 Library

Server configuration

HTTP redirects
(Critically important)
This page redirects to "https://art21.org/"
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 slow (1.04 seconds). The response time should be less than 0.4 seconds. Slow websites are bad for search engine bots and also result in bad user experience.
The file size of the HTML document is fine (82 kB).

HTTP Response Header

NameValue
dateThu, 07 Aug 2025 22:28:55 GMT
content-typetext/html; charset=UTF-8
servercloudflare
varyAccept-Encoding
link<https://art21.org/wp-json/>; rel="https://api.w.org/"
x-powered-byWP Engine
x-cacheableSHORT
cache-controlmax-age=600, must-revalidate
x-cacheHIT: 2
x-cache-groupnormal
report-to{"group":"cf-nel","max_age":604800,"endpoints":[{"url":"https://a.nel.cloudflare.com/report/v4?s=8D%2FpRmoM1z8OcBsns53gLGCqoDHmqOPqYZDBGvd38WNUeV3CpD0DVkWqHWrSXCSS%2FQUKcAxJEwUPWJk5vrUk7um5fmCPWhccSw%3D%3D"}]}
cf-cache-statusDYNAMIC
nel{"report_to":"cf-nel","success_fraction":0.0,"max_age":604800}
content-encodingzstd
cf-ray96ba35b19df3f0df-CDG
alt-svch3=":443"; ma=86400
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 761 referring domains.
This page has 5,765 backlinks.
This page has backlinks from 396 different ip addresses.

Links from Wikipedia

You can find more links using Wikipedia search

Robots.txt

User-agent: *
Disallow: /wp-admin/
Allow: /wp-admin/admin-ajax.php

Sitemap: https://art21.org/sitemap.xml
Sitemap: https://art21.org/sitemap.html

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art21.org
Art21
The mission of Art21 is to educate and expand access to contemporary art through the production of documentary films, resources, and public programs.

Most important keywords

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

KeywordResultRecheck
Art84%Check
Art2179%Check
Contemporary Art68%Check
2025 Art2160%Check
or make56%Check
film52%Check
films50%Check
Play44%Check
Time44%Check
watchlist43%Check
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