- SEO Checker

Overview of the SEO Check
Meta information
Page quality
Page structure
Link structure
External factors
SEO Score
Response time
0.73 s
File size
19.90 kB
Media files
Number of links
70 internal / 29 external

Task list of SEO Improvements

Meta specifications

(Critically important)
National Speleological Society
The length of the page title is perfect. (273 pixels out of 580 max pixel length)
There are no duplicate words in the title
Meta description
(Critically important)
The meta description is missing.
(Critically important)
There are no problems in accessing the website.
Canonical URL
No canonical link is specified.
(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.
(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.
(Nice to have)
The doctype XHTML 1.0 Transitional is set correctly.
The doctype is placed at first in the HTML code.
(Nice to have)
No favicon is linked in the HTML code.

Meta tags

Content-Typetext/html; charset=utf-8

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Page quality

(Critically important)
There are only 388 words on this page. Good pages should have about 800 words of useful content.
23.5% of the text are stop words.
Keywords used in the page title are also used in the page content. That's good!
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.
There are no duplicates on the site.
The average number of words per sentence of 11.82 words is good.
(Critically important)
This page does not use a frameset.
Mobile optimization
(Somewhat important)
No viewpoint tag is provided.
No Apple touch icon is specified.
This page only loads 2 JavaScript files. That's good!
Bold and strong tags
(Somewhat important)
Some tags are too long. With 103 characters this one is longer than 70 characters:
"the science playlist (13 video talks) is available now for viewing watch them at"
Image SEO
(Somewhat important)
20 images have no alt attribute. The content of alt attributes is used by search engines.
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.
(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
/images_home/New%20NEWS.pngNo alt attribute provided
/images_home/New%20Journal.pngNo alt attribute provided alt attribute provided
/images_home/Lech_image.pngNo alt attribute provided
/images_home/Miner's%20Lamp.jpgNo alt attribute provided alt attribute provided
/images_home/ICS21%20Logo.pngNo alt attribute provided
/images_home/IYCK%20Logo.jpgNo alt attribute provided alt attribute provided
/webinars/Thumbs/Non-cave_thumb.pngNo alt attribute provided
...uminaries/Luminaries 2020/Luminaries.jpgNo alt attribute provided
/images_home/find_a_club.pngFind a Club
/images_home/join-renew-nss.jpgJoin or Renew NSS Membership
/images/CPN_NSS_Button_Home2_Sm.jpgCave Preservation Network
/images_home/101thumb_techniques.jpgCaving Safety and Techniques alt attribute provided alt attribute provided
/images/ExpertVoice-logo.jpgNo alt attribute provided
/images/cavechat%20button.pngNo alt attribute providedCavechat alt attribute provided alt attribute providedGoogle+ alt attribute providedLinkedIn alt attribute providedInstagram alt attribute providedLinkedIn

Page structure

H1 heading
(Critically important)
There is no H1 heading specified.
The structure of headings is missing one or more levels. Do not skip heading levels.

Heading structure

Heading levelContent
H2 Breaking News
H2 Lechuguilla Cave 150th Mile
H2 NSS Museum Donations
H2 International Congress 2021 July 21 - August 1, Mont Blanc, France
H2 Webinars and Luminary Talks
H2 Your 2020 Luminaries
H3 Find issues on the IO Committee page See the newest issue now...
H3 Make plans now! See the 3rd Newsletter
H3 Start Planning Your Activities Now!
H3 CaveChat Caving Forum
H3 The Virtual Cave
H3 Guide to Responsible Caving
H3 The Cave Preservation Network
H3 Caving Safety & Techniques
H4 Click to watch!
Some anchor texts are used more than once.
5 links don't have an 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 too many external links (29) on this page.
LinkAttributesAnchor text
/About_the_NSS.shtmlAbout the NSS
/info/nss-orgs.shtmlNSS Organization
/info/NSS_Contacts.pdfNSS Contacts
/preserves/index.shtmlNSS Preserves
/info/affiliates.shtmlAffiliate Orgs
/grants/index.shtmlGrants Subdomain Web Hosting
/info/NSS Membership types.pdfNew window Membership Info
/info/events.shtmlNew window Event Calendar
/info/volunteer.shtmlVolunteer window Awards
/committee/salons/index.shtmlCave Art & Music
/donate/index.shtmlNew window Donate
/committee/i-o/grottos/new_gro...Find a Local Club
/brochure/Guide_to_Resp_Caving...Responsible Caving
/safety/index.shtmlSafety & Techniques Conservation
/youth/index.shtmlYouth Groups Accidents
/committee/education/Learn About Caves Nose Syndrome
/committee/library/index.shtmlNSS Library
/service/avlibrary/index.shtmlNSS A/V Library
/luminaries/index.shtmlLuminary Talks
/webinars/index.shtmlCaveNet Webinars Subdomain NCRC Training
/nss-business/publications/NSS...NSS News
/nss-business/publications/ACA/Text duplicate Caving Accidents
/nss-business/publications/JCK...NSS Bulletin
/nss-business/publications/Spe...Speleo Digests
/nss-business/for_members.shtmlNew window MEMBER CENTRAL window External Subdomain Renew Membership
/committee/i-o/index.shtmlIO Info Update
/nss-business/bog/Board_of_Gov...New window BOG Manual
/nss-business/bog/Table_4D_Per...Current Personnel
/webteam/index.shtmlWeb Team Search window External Subdomain Member Search
/committee/i-o/grottos/new_gro...Text duplicate Find a Local Club window External Subdomain NSS Bookstore
/webservices/webads.shtmlOur Advertisers In.pdfNew window How Do I Log In? window External Subdomain Log into NSS account
/info/NSS Membership types.pdfNew window Join the NSS or Renew
/nss-business/publications/NSS...New window No Text window External Subdomain
/nss-business/publications/NSS...New window Publications Archive
/nss-business/publications/JCK...New window No Text
/nss-business/publications/JCK...New window Pubs Archive window External Subdomain
/pub/journal/Journal_of_Cave_a...New window window External No Text URL anchor text
/museum/index.htmNew window No Text
/museum/index.htmNew window NSS Museum Donations
/Museum Donation Policy.pdfPolicy for NSS Museum Donations
/Museum Donation Questionnaire...Museum Donor Questionnaire
/committee/i-o/Newsletter.shtmlNo Text
/committee/i-o/index.shtmlNew window Find issues on the IO Committee page
/committee/i-o/Newsletters/IO ...New window See the newest issue now... window External Subdomain No Text
/ICS21_3rd Newsletter.pdfSee the 3rd Newsletter window External No Text INT'L YEAR OF CAVES AND KARST window External No Text
/ICYK\IYCK-Planning-Guide.pdfNew window Planning Guide
/webinars/index-10.shtmlNon-cave Subterranean Habitats
/webinars/index.shtmlSee more webinars
/luminaries/index.shtmlNew window No Text
/committee/i-o/grottos/new_gro...New window IMG-ALT Find a Club window External Subdomain IMG-ALT Join or Renew NSS Membership window IMG-ALT Cavers window External Subdomain CaveChat Caving Forum
IMG-ALT CaveChat
/virtual/virtcave/New window IMG-ALT cave
/virtual/virtcave/New window The Virtual Cave
/brochure/Guide_to_Resp_Caving...New window Text duplicate IMG-ALT cave
/brochure/Guide_to_Resp_Caving...New window Guide to Responsible Caving window External Subdomain IMG-ALT Cave Preservation Network window External Subdomain The Cave Preservation Network window IMG-ALT Caving Safety and Techniques Safety & Techniques window External Subdomain No Text window External No Text window External No Text NSS IT/Web Support window External Subdomain No Text window External No Text window External IMG-ALT Facebook window External No Text window External Subdomain No Text window External No Text window External No Text window External No Text

Server configuration

HTTP redirects
(Critically important)
This page redirects to ""
HTTP header
The HTML page should be transferred using GZip compression.
The web server version is sent within the HTTP header.
No X-Powered HTTP header is sent.
(Somewhat important)
The page response time of 0.73 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 only loads 2 CSS files. That's ok.
This page only loads 2 JavaScript files. That's good!
The file size of the HTML document is fine (20 kB).

HTTP Response Header

dateFri, 08 Jan 2021 14:18:29 GMT
serverApache/2.4.7 (Ubuntu)

External factors

(Nice to have)
This website is not classified "for adult only".
This page is referenced by wikipedia.
This website has excellent links from other websites.
This page has backlinks from 4,043 referring domains.
This page has 187,783 backlinks.
This page has backlinks from 2,139 different ip addresses.
Facebook popularity
(Somewhat important)
The page has 1680 shares, comments and likes on Facebook.
Listed on Webwiki
(Nice to have)
This website is listed on Webwiki.

Search preview

Most important keywords

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

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