Birdsoftheworld.org - SEO Checker

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Overview of the SEO Check
Meta information
100% 
Page quality
58% 
Page structure
70% 
Link structure
51% 
Server
31% 
External factors
100% 
SEO Score
Response time
1.25 s
File size
140.00 kB
Words
949
Media files
65
Number of links
75 internal / 38 external

Task list of SEO Improvements

Meta specifications

Title
(Critically important)
Birds of the World - Cornell Lab of Ornithology
The length of the page title is perfect. (411 pixels out of 580 max pixel length)
There are no duplicate words in the title
Meta description
(Critically important)
Species accounts for all the birds of the world.
The length of the meta description is perfect. (284 pixels out of 1000 max pixel length)
Crawlability
(Critically important)
There are no problems in accessing the website.
Canonical URL
(Important)
No canonical link is 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
viewportwidth=device-width, initial-scale=1
descriptionSpecies accounts for all the birds of the world.
msapplication-TileColor#ffffff
theme-color#ffffff
langen
twitter:cardsummary
twitter:titleBirds of the World - Comprehensive life histories for all bird species and families
twitter:descriptionSpecies accounts for all the birds of the world.
twitter:imagehttps://cdn.download.ams.birds.cornell.edu/api/v1/asset/636339933/1200
twitter:site@birdsoftheworld
og:titleBirds of the World - Comprehensive life histories for all bird species and families
og:urlhttps://birdsoftheworld.org/bow/home
og:descriptionSpecies accounts for all the birds of the world.
og:typenon_profit
og:imagehttps://cdn.download.ams.birds.cornell.edu/api/v1/asset/636339933/1200
og:image:altBlack-headed Bunting
x-ua-compatibleie=edge
charsetutf-8

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Page quality

Content
(Critically important)
The average number of words per sentence of 43.08 words is high.
This page contains 949 words. That's ok.
27% of the text are stop words.
Keywords used in the page title are also used in the page content. That's good!
Words from the H1 heading are used in the page content.
The page contains a listing, which indicates a good text layout.
9 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)
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 19 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
...w/clo_birdsoftheworld_horizontal_web.svgBirds of the World
...os/bow/clo_birdsoftheworld_short_web.svgBirds of the World
...w/clo_birdsoftheworld_horizontal_web.svgBirds of the World
....cornell.edu/api/v1/asset/636339933/2400Black-headed Bunting
data:[...] Base64Golden-crowned Sparrow
data:[...] Base64Malabar Pied-Hornbill
data:[...] Base64Sira Barbet
data:[...] Base64Akiapolaau
data:[...] Base64Green Tinkerbird
data:[...] Base64Eurasian Jay
data:[...] Base64Prairie Falcon
data:[...] Base64Australian Hobby
data:[...] Base64Chucao Tapaculo
data:[...] Base64White-throated Caracara
data:[...] Base64Willow Tit
data:[...] Base64Stripe-backed Bittern
data:[...] Base64South Georgia Pipit
data:[...] Base64Rufous-tailed Plantcutter
data:[...] Base64Udzungwa Partridge
data:[...] Base64Common Chiffchaff
data:[...] Base64Pitcairn Reed Warbler
data:[...] Base64Burmese Collared-Dove
.../clo_birdsoftheworld_short_black_web.svgBirds of the World
...m/logos/clo/clo_horizontal_white_web.svgCornell Lab of Ornithology
...os/cornell/cornell_reduced_white_web.svgCornell University
...ornell/cornell_logo_simple_white_web.svgCornell University

Page structure

H1 heading
(Critically important)
Discover Birds. Explore Science.
Too many H1 headings
Headings
(Important)
The heading structure is perfect.

Heading structure

Heading levelContent
H1 Discover Birds. Explore Science.
H1 Video description
H1 Conservation Status
H2 Navigation
H2 Idioma (es)
H2 Free Preview Accounts
H2 Subscribe to Birds of the World
H2 Recently Updated Accounts
H2 News and Webinars
H2 Global gaps in citizen-science data reveal the world's “lost” birds
H2 New study finds where birds are declining most; some locales with positive trends
H2 For the first time, all avian evolutionary relationships revealed
H2 Partnerships
H3 Subscriptions for your organization
H3 Special Member Access
H3 About Birds of the World
H3 Get Updates
H3 Questions?
H3 About
H3 Features
H3 Access
Some internal links have dynamic parameters. All internal URLs, which are not marked as nofollow, should not contain dynamic parameters.
Some anchor texts are used more than once.
The number of internal links is ok.
None of the anchor texts is too long.
There are too many external links (38) on this page.

Found links on this page

LinkAttributesAnchor text
/bow/homeAnchor Skip to content
/bow/homeIMG-ALT Birds of the World
/bow/homeText duplicate IMG-ALT Birds of the World
/bow/content/about-birds-of-th...About
/bow/content/partnersPartners
/bow/latest-updatesRecent Updates
/bow/speciesSpecies
/bow/newsNews
/bow/news?category=webinarWebinars
/bow/subscribeSubscribe
/bow/home?loginIniciar Sesión
/bow/home?lang=enEnglish
/bow/home?lang=esEspañol (solo fichas de especies)
/bow/speciesExplore Taxonomy
/bow/species/surprise-meSorpréndeme
/bow/species/blhbun1/cur/intro...Black-headed Bunting Emberiza melanocephala
https://macaulaylibrary.org/as...External Macaulay Library
https://ebird.org/checklist/S2...External eBird
/bow/species/gocspa/cur/introd...Golden-crowned Sparrow Zonotrichia atricapilla
IMG-ALT Golden-crowned Sparrow
/bow/species/maphor1/cur/intro...Malabar Pied-Hornbill Anthracoceros coronatus
IMG-ALT Malabar Pied-Hornbill
/bow/species/sirbar1/cur/intro...Sira Barbet Capito fitzpatricki
IMG-ALT Sira Barbet
A-TITLE Illustration by Hilary Burn.
/bow/species/akiapo/cur/introd...Akiapolaau Hemignathus wilsoni
IMG-ALT Akiapolaau
/bow/species/gretin2/cur/intro...Green Tinkerbird Pogoniulus simplex
IMG-ALT Green Tinkerbird
A-TITLE Illustration by Ian Lewington.
/bow/species/eurjay1/cur/intro...Eurasian Jay Garrulus glandarius
IMG-ALT Eurasian Jay
/bow/species/prafal/cur/introd...Prairie Falcon Falco mexicanus
IMG-ALT Prairie Falcon
A-TITLE Illustration by Hilary Burn.
/bow/species/aushob1/cur/intro...Australian Hobby Falco longipennis
IMG-ALT Australian Hobby
A-TITLE Illustration by Hilary Burn.
/bow/species/chutap1/cur/intro...Chucao Tapaculo Scelorchilus rubecula
IMG-ALT Chucao Tapaculo
A-TITLE Illustration by John Cox.
/bow/subscription?checkoutButt...Subscribe and Save
/bow/subscribeLearn more about subscriptions
/bow/support/subscribeinstLearn more about institutional subscriptions
/bow/content/special-member-ac...Special Member Access
/bow/species/whtcar1/cur/intro...Full Revision White-throated Caracara Daptrius albogularis 23 may 2025
IMG-ALT White-throated Caracara
A-TITLE Illustration by Ian Willis.
/bow/species/wiltit1/cur/intro...Full Revision Willow Tit Poecile montanus 23 may 2025
IMG-ALT Willow Tit
A-TITLE Illustration by Hilary Burn.
/bow/species/stbbit1/cur/intro...Full Revision Stripe-backed Bittern Botaurus involucris 23 may 2025
IMG-ALT Stripe-backed Bittern
/bow/species/sogpip1/cur/intro...Partial Revision South Georgia Pipit Anthus antarcticus 23 may 2025
IMG-ALT South Georgia Pipit
/bow/species/rutpla1/cur/intro...Full Revision Rufous-tailed Plantcutter Phytotoma rara 16 may 2025
IMG-ALT Rufous-tailed Plantcutter
A-TITLE Illustration by Chris Rose.
/bow/species/udzpar1/cur/intro...Full Revision Udzungwa Partridge Xenoperdix udzungwensis 16 may 2025
IMG-ALT Udzungwa Partridge
/bow/species/comchi1/cur/intro...Full Revision Common Chiffchaff Phylloscopus collybita 16 may 2025
IMG-ALT Common Chiffchaff
/bow/species/pirwar2/cur/intro...Full Revision Pitcairn Reed Warbler Acrocephalus vaughani 16 may 2025
IMG-ALT Pitcairn Reed Warbler
A-TITLE Illustration by Ian Lewington.
/bow/species/eurcod2/cur/intro...Partial Revision Burmese Collared-Dove Streptopelia xanthocycla 16 may 2025
IMG-ALT Burmese Collared-Dove
A-TITLE Illustration by Jan Wilczur.
/bow/latest-updatesAll recently updated accounts
/bow/news/global-gaps-in-citiz...Global gaps in citizen-science data reveal the world's “lost” birds
/bow/news/new-study-finds-wher...New study finds where birds are declining most; some locales with positive trends
/bow/news/for-the-first-time-a...For the first time, all avian evolutionary relationships revealed
/bow/newsAll News
/bow/news?category=webinarAll Webinars
/bow/content/about-birds-of-th...About Birds of the World
/bow/content/teamTeam
/bow/subscribeText duplicate Subscribe
/bow/support/faqsFrequently Asked Questions
/bow/support/contactContact Us
https://abcbirds.org/External IMG-ALT American Bird Conservancy
https://americanornithology.org/External IMG-ALT American Ornithological Society
https://www.audubonpanama.org/External Subdomain IMG-ALT Audubon Panamá
https://www.aplori.org/External Subdomain IMG-ALT A.P. Leventis Ornithological Research Institute
https://armoniabolivia.org/External IMG-ALT Armonia Bolivia
https://www.avesdecostarica.org/External Subdomain IMG-ALT Asociación Ornitológica de Costa Rica (AOCR)
https://www.avesargentinas.org...External Subdomain IMG-ALT Aves Argentinas
https://avibase.ca/External IMG-ALT Avibase
https://aveshonduras.org/External IMG-ALT Aves Honduras
/bow/content/aves-uruguayIMG-ALT Aves Uruguay
https://www.birdscaribbean.org/External Subdomain IMG-ALT Birds Caribbean
/bow/content/bird-count-indiaIMG-ALT Bird Count India
https://www.cicese.edu.mx/External Subdomain IMG-ALT Centro de Investigación Científica y de Educación Superior de Ensenada
https://cipamex.org/External IMG-ALT CIPAMEX
https://www.facebook.com/profi...External Subdomain IMG-ALT Clan Thamnophilus
https://www.iucn.org/our-union...External Subdomain IMG-ALT IUCN SSC Heron Specialist Group
https://www.islas.org.mx/External Subdomain IMG-ALT Conservación de Islas
https://www.corbidi.org/External Subdomain IMG-ALT Corbidi
https://ñankulafken.cl/External IMG-ALT Fundación Ñankulafkén
https://guyra.org.py/External Subdomain IMG-ALT Guyra Paraguay
https://www.humboldt.org.co/External Subdomain IMG-ALT Instituto Humboldt
https://www.lynxeds.com/External Subdomain IMG-ALT Lynx
https://malaysianbird.report/External IMG-ALT Malaysian Bird Report
https://www.facebook.com/MUNATSVExternal Subdomain IMG-ALT Mujeres y Naturaleza
http://www.oikonos.org/External Subdomain IMG-ALT Oikonos
https://www.orientalbirdclub.org/External Subdomain IMG-ALT Oriental Bird Club
https://www.osme.org/External Subdomain IMG-ALT Ornithological Society Of The Middle East The Caucasus And Central Asia
/bow/content/roc-chileIMG-ALT RED DE OBSERVADORES DE AVES Y VIDA SILVESTRE DE CHILE
https://www.robertsbirds.co.za/External Subdomain IMG-ALT Roberts Birds
/bow/content/save-brasilIMG-ALT Save Brasil
https://sociedadornitologicade...External IMG-ALT Sociedad Ornitològica de Córdoba
https://www.tbri.gov.tw/External Subdomain IMG-ALT Taiwan Biodiversity Research Institute
https://pagina.fciencias.unam....External Subdomain IMG-ALT Universidad Nacional Autónoma de México - Museo Zoología Alfonso L. Herrera
/bow/content/union-venezolana-...IMG-ALT Union Venezolana De Ornitologos
https://www.usfq.edu.ec/enExternal Subdomain IMG-ALT Universidad San Francisco de Quito - Ecuador
https://birds.cornell.edu/External Subdomain IMG-ALT Cornell Lab of Ornithology
/bow/content/about-birds-of-th...Text duplicate About Birds of the World
/bow/content/editors-notesEditor's Notes
/bow/support/faqsText duplicate Frequently Asked Questions
/bow/content/historyHistory
/bow/support/contributeHow to Contribute
/bow/content/teamText duplicate Team
/bow/support/contactText duplicate Contact Us
/bow/key-to-scientific-names/s...Clave de los nombres científicos
/bow/content/ornith-notesOrnithological Notes
/bow/content/range-mapsRange Maps
/bow/speciesTaxonomy Explorer
/bow/specieslistFull Species List
/bow/newsNews and Webinars
/bow/subscribePersonal Subscriptions
/bow/support/subscribeinstInstitutional Subscriptions
/bow/content/special-member-ac...Special member access
/bow/support/scholarshipsScholarships
/bow/support/subscriptionfaqSubscription FAQs
/bow/support/termsofsaleTerms of Sale
/bow/support/bow-terms-of-useSite Terms of Use
https://birds.cornell.edu/home...External Subdomain Land Acknowledgement
https://birds.cornell.edu/home...External Subdomain Web Accessibility Assistance
https://www.birds.cornell.edu/...External Subdomain Privacy Policy
https://www.birds.cornell.edu/...External Subdomain Cornell Lab Terms of Use
https://give.birds.cornell.edu...External Subdomain Donate
/bow/home?loginText duplicate Iniciar Sesión

Server configuration

HTTP redirects
(Critically important)
This page redirects to "https://birdsoftheworld.org/bow/home"
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 is slow (1.25 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 (140 kB).

HTTP Response Header

NameValue
cache-controlno-cache, no-store, max-age=0, must-revalidate
content-languagees
content-security-policyframe-ancestors 'self' http://localhost:8080 https://*.birds.cornell.edu https://*.ornith.cornell.edu
content-typetext/html;charset=UTF-8
dateFri, 30 May 2025 18:52:32 GMT
expires0
pragmano-cache
set-cookie31 Characters
strict-transport-securitymax-age=31536000 ; includeSubDomains
varyOrigin
x-content-type-optionsnosniff
x-frame-optionsSAMEORIGIN
x-xss-protection1; mode=block
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 1,058 referring domains.
This page has 105,979 backlinks.
This page has backlinks from 470 different ip addresses.

Links from Wikipedia

You can find more links using Wikipedia search

Robots.txt

User-agent: Amazonbot
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User-agent: anthropic-ai
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User-agent: AwarioRssBot
User-agent: AwarioSmartBot
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User-agent: Bytespider
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User-agent: CCBot
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User-agent: ChatGPT-User
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User-agent: ClaudeBot
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User-agent: Claude-Web
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User-agent: cohere-ai
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User-agent: DataForSeoBot
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User-agent: Diffbot
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User-agent: FacebookBot
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User-agent: Google-Extended
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User-agent: GPTBot
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User-agent: magpie-crawler
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User-agent: NewsNow
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User-agent: news-please
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User-agent: omgili
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User-agent: peer39_crawler
User-agent: peer39_crawler/1.0
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User-agent: PerplexityBot
Disallow: /

User-agent: Scrapy
Disallow: /

User-agent: TurnitinBot
Disallow: /

User-agent: *
Disallow: /*/redirect/*

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birdsoftheworld.org › bow › home
Birds of the World - Cornell Lab of Ornithology
Species accounts for all the birds of the world.

Most important keywords

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

KeywordResultRecheck
Birds87%Check
World75%Check
Discover Birds70%Check
bird species69%Check
birds Text62%Check
Two Birds62%Check
world Video58%Check
Accounts54%Check
Science54%Check
American Bird Conservancy54%Check
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