Cavern.com - SEO Checker

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Overview of the SEO Check
Meta information
80% 
Page quality
73% 
Page structure
70% 
Link structure
25% 
Server
54% 
External factors
100% 
SEO Score
Response time
1.66 s
File size
247.10 kB
Words
506
Media files
9
Number of links
114 internal / 12 external

Task list of SEO Improvements

Meta specifications

Title
(Critically important)
National Cave Association | America's Best Show Caves
The length of the page title is perfect. (502 pixels out of 580 max pixel length)
There are no duplicate words in the title
Meta description
(Critically important)
Founded in 1965 by a small group of private show cave owners from across the United States, the National Caves Association has been encouraging the public to discover the underground wonders of America’s show caves for close to 50 years.
The meta description is too long: 1503 pixels from max. 1000 pixels. Optimize description
Crawlability
(Critically important)
There are no problems in accessing the website.
Canonical URL
(Important)
https://cavern.com/
There is a valid canonical link specified.
Language
(Somewhat important)
Language detected in text: en
Language defined in HTML: en-us
Server location: United States of America
The following language is defined by HTML: en-us
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
robotsindex, follow, max-image-preview:large, max-snippet:-1, max-video-preview:-1
descriptionFounded in 1965 by a small group of private show cave owners from across the United States, the National Caves Association has been encouraging the public to discover the underground wonders of America’s show caves for close to 50 years.
generatorWordPress 6.8.1
viewportwidth=device-width, initial-scale=1, viewport-fit=cover, maximum-scale=5, user-scalable=yes
msapplication-TileImagehttps://cavern.com/wp-content/uploads/2023/08/cropped-Untitled-design-4-270x270.png
article:modified_time2025-04-14T21:26:56+00:00
langen-us
twitter:cardsummary_large_image
og:localeen_US
og:typewebsite
og:titleNational Cave Association | America's Best Show Caves
og:descriptionFounded in 1965 by a small group of private show cave owners from across the United States, the National Caves Association has been encouraging the public to discover the underground wonders of America’s show caves for close to 50 years.
og:urlhttps://cavern.com/
og:site_nameNational Caves Association
X-UA-CompatibleIE=edge
charsetUTF-8

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Page quality

Content
(Critically important)
This page contains 506 words. That's ok.
23.9% 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.
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.
The average number of words per sentence of 15.92 words is good.
Frames
(Critically important)
This page does not use a frameset.
Mobile optimization
(Somewhat important)
This page loads 26 JavaScript files. This may affect the load time negatively.
A viewport "width=device-width, initial-scale=1, viewport-fit=cover, maximum-scale=5, user-scalable=yes" 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 10 tags for this page.
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)
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
...ads/2023/01/NCA_Logo-layers-2020-USA.png
Insecure Content		National Caves Association
/wp-content/uploads/2023/01/thumbnail-2.jpgruby falls
data:[...] Base64Greatest Show Meramec Caverns
data:[...] Base64walkway through the cave with water on sidesstark-24
data:[...] Base64No alt attribute provided
data:[...] Base64No alt attribute provided
data:[...] Base64No alt attribute provided
data:[...] Base64No alt attribute provided

Page structure

H1 heading
(Critically important)
America’s Best Show Caves
Too many H1 headings
Headings
(Important)
The heading structure is perfect.

Heading structure

Heading levelContent
H1 America’s Best Show Caves
H1 America Underground, Discover America’s Best Show Caves!
H2 Natural Stone Bridge & Caves Park
H2 Natural Bridge Caverns
H2 Meramec Caverns
H2 Luray Caverns
H2 Discover America Underground
H2 Plan you vaCAVEtion today!
H2 Bluespring Caverns
H2 Alabaster Caverns State Park
H2 Hidden River Cave & American Cave Museum
H3 Learn More About Caves:
H3 Order Copies of NCA Brochure
H3 WEST
H3 MIDWEST
H3 EAST
H3 OFFSHORE
H4 National Caves Association
H4 Contact Us
H4 Follow Us On Facebook
H4 Follow Us On X
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 12 external links on this page.

Found links on this page

LinkAttributesAnchor text
https://www.facebook.com/profi...External Subdomain Facebook
https://twitter.com/bestshowcavesExternal X
https://cavern.com/IMG-ALT National Caves Association
https://cavern.com/Home
https://cavern.com/all-showcaves/All Show Caves
/western-region/Western Region
https://cavern.com/state/?slug=AZArizona (1)
https://cavern.com/state/?slug=CACalifornia (5)
https://cavern.com/state/?slug=COColorado (2)
https://cavern.com/state/?slug=NMNew Mexico (2)
https://cavern.com/state/?slug=OROregon (2)
https://cavern.com/state/?slug=UTUtah (1)
/midwestern-region/Midwestern Region
https://cavern.com/state/?slug=ARArkansas (4)
https://cavern.com/state/?slug=INIndiana (6)
https://cavern.com/state/?slug=IAIowa (2)
https://cavern.com/state/?slug=MNMinnesota (2)
https://cavern.com/state/?slug=MOMissouri (10)
https://cavern.com/state/?slug=OKOklahoma (1)
https://cavern.com/state/?slug=SDSouth Dakota (4)
https://cavern.com/state/?slug=TXTexas (5)
https://cavern.com/state/?slug=WIWisconsin (2)
/eastern-region/Eastern Region
https://cavern.com/state/?slug=ALAlabama (3)
https://cavern.com/state/?slug=FLFlorida (1)
https://cavern.com/state/?slug=KYKentucky (6)
https://cavern.com/state/?slug=NHNew Hampshire (2)
https://cavern.com/state/?slug=NYNew York (2)
https://cavern.com/state/?slug=OHOhio (4)
https://cavern.com/state/?slug=PAPennsylvania (6)
https://cavern.com/state/?slug=TNTennessee (8)
https://cavern.com/state/?slug=VAVirginia (5)
https://cavern.com/state/?slug=WVWest Virginia (1)
https://cavern.com/offshore/Offshore
https://cavern.com/state/?slug=BABarbados (1)
https://cavern.com/state/?slug=BXBermuda (1)
https://cavern.com/state/?slug=GCGrand Cayman (1)
https://cavern.com/state/?slug=HIHawaii (1)
/how-caves-form/How Caves Form
https://cavern.com/cave-types/Cave Types
https://cavern.com/creatures/Creatures
https://cavern.com/formations/Formations
/protecting-caves/Protecting Caves
/educational-material/Educational Material
/bluespring-caverns-in/Bluespring Caverns, IN
/caverns-of-sonora-tx/Caverns of Sonora, TX
/crystal-and-fantasy-caves-ber...Crystal and Fantasy Caves, Bermuda
/crystal-cave-pa/Crystal Cave, PA
/crystal-lake-cave-ia/Crystal Lake Cave, IA
/cumberland-caverns-tn/Cumberland Caverns, TN
/diamond-caverns-ky/Diamond Caverns, KY
/glenwood-caverns-co/Glenwood Caverns, CO
/hana-lava-tube-hi/Hana Lava Tube, HI
/inner-space-cavern-tx/Inner Space Cavern, TX
/lake-shasta-caverns-ca/Lake Shasta Caverns, CA
/lincoln-caverns-pa/Lincoln Caverns, PA
/longhorn-cavern/Longhorn Cavern
https://cavern.com/lost-sea-tn/Lost Sea, TN
/luray-caverns-va/Luray Caverns, VA
/marengo-cave-in/Marengo Cave, IN
/mark-twain-cave-mo/Mark Twain Cave, MO
/mercer-caverns-ca/Mercer Caverns, CA
/moaning-caverns-adventure-par...Moaning Caverns Adventure Park, CA
/natural-bridge-caverns-tx/Natural Bridge Caverns, TX
/natural-stone-bridge-caves-park/Natural Stone Bridge & Caves Park, NY
/ohio-caverns-oh/Ohio Caverns, OH
https://cavern.com/ruby-falls-tn/Ruby Falls, TN
/rushmore-cave-sd/Rushmore Cave, SD
/seneca-caverns/Seneca Caverns, OH
/squire-boone-caverns-in/Squire Boone Caverns, IN
/stark-caverns-mo/Stark Caverns, MO
/talking-rocks-cavern-mo/Talking Rocks Cavern, MO
https://cavern.com/about-the-nca/About the NCA
https://cavern.com/about-the-nca/Text duplicate About the NCA
/become-a-member/Become a Member
https://cavern.com/nca-partners/NCA Partners
https://americasbestshowcaves....New window External Subdomain Blog
/wp-content/uploads/2023/01/th...IMG-ALT ruby falls
A-TITLE thumbnail (2)
/wp-content/uploads/2023/01/Gr...IMG-ALT Greatest Show Meramec Caverns
A-TITLE Greatest Show Meramec
/how-caves-form/Text duplicate How Caves Form
https://cavern.com/creatures/Text duplicate Creatures
https://cavern.com/cave-types/Text duplicate Cave Types
https://cavern.com/formations/Text duplicate Formations
https://mswinteractive.wufoo.c...External Subdomain online form
/wp-content/uploads/2023/07/20...DOWNLOAD BROCHURE
/western-region/WEST
https://cavern.com/state/?slug=AZARIZONA (1)
https://cavern.com/state/?slug=CACALIFORNIA (5)
https://cavern.com/state/?slug=COCOLORADO (2)
https://cavern.com/state/?slug=NMNEW MEXICO (2)
https://cavern.com/state/?slug=OROREGON (2)
https://cavern.com/state/?slug=UTUTAH (1)
/midwestern-region/MIDWEST
https://cavern.com/state/?slug=ARARKANSAS (4)
https://cavern.com/state/?slug=ININDIANA (6)
https://cavern.com/state/?slug=IAIOWA (2)
https://cavern.com/state/?slug=MNMINNESOTA (2)
https://cavern.com/state/?slug=MOMISSOURI (10)
https://cavern.com/state/?slug=OKOKLAHOMA (1)
https://cavern.com/state/?slug=SDSOUTH DAKOTA (4)
https://cavern.com/state/?slug=TXTEXAS (5)
https://cavern.com/state/?slug=WIWISCONSIN (2)
/eastern-region/EAST
https://cavern.com/state/?slug=ALALABAMA (3)
https://cavern.com/state/?slug=FLFLORIDA (1)
https://cavern.com/state/?slug=KYKENTUCKY (6)
https://cavern.com/state/?slug=NHNEW HAMPSHIRE (2)
https://cavern.com/state/?slug=NYNEW YORK (2)
https://cavern.com/state/?slug=OHOHIO (4)
https://cavern.com/state/?slug=PAPENNSYLVANIA (6)
https://cavern.com/state/?slug=TNTENNESSEE (8)
https://cavern.com/state/?slug=VAVIRGINIA (5)
https://cavern.com/state/?slug=WVWEST VIRGINIA (1)
https://cavern.com/offshore/OFFSHORE
https://cavern.com/state/?slug=BABARBADOS (1)
https://cavern.com/state/?slug=BXBERMUDA (1)
https://cavern.com/state/?slug=GCGRAND CAYMAN (1)
https://cavern.com/state/?slug=HIHAWAII (1)
https://www.bluespringcaverns....New window External Subdomain No Text
https://www.travelok.com/state...New window External Subdomain No Text
https://hiddenrivercave.com/New window External No Text
https://mswinteractive.wufoo.c...External Subdomain Text duplicate online form
https://www.facebook.com/profi...New window External Subdomain Follow
A-TITLE Follow on Facebook
https://twitter.com/bestshowcavesNew window External Text duplicate Follow
A-TITLE Follow on X
https://twitter.com/bestshowca...External Tweets by bestshowcaves
http://www.mswinteractivedesig...New window External Subdomain Website design and hosting by MSW Interactive Designs LLC. We put the web to work for you!

Server configuration

HTTP redirects
(Critically important)
This page redirects to "https://cavern.com/"
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 very slow (1.66 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.
This page loads 9 CSS files. This may affect the page load time negatively.
This page loads 26 JavaScript files. This may affect the load time negatively.
The file size of the HTML document is fine (247 kB).

HTTP Response Header

NameValue
dateSat, 26 Jul 2025 23:14:12 GMT
serverApache
last-modifiedWed, 02 Jul 2025 14:17:13 GMT
accept-rangesbytes
varyAccept-Encoding
content-encodinggzip
cache-controlmax-age=0, no-cache, no-store, must-revalidate
pragmano-cache
expiresMon, 29 Oct 1923 20:30:00 GMT
content-length42524
content-typetext/html; charset=UTF-8
statuscode200
http_versionHTTP/1.1

External factors

This page is referenced by wikipedia.
This website has excellent links from other websites.
This page has backlinks from 121 referring domains.
This page has 754 backlinks.
This page has backlinks from 75 different ip addresses.

Links from Wikipedia

You can find more links using Wikipedia search

Robots.txt

# START YOAST BLOCK
# ---------------------------
User-agent: *
Disallow:

Sitemap: https://cavern.com/sitemap_index.xml
# ---------------------------
# END YOAST BLOCK

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Search preview

cavern.com
National Cave Association | America's Best Show Caves
Founded in 1965 by a small group of private show cave owners from across the United States, the National Caves Association has been encouraging the public to discover the underground wonders of America’s show caves for close to 50 years.

Most important keywords

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

KeywordResultRecheck
Cave91%Check
Show80%Check
show caves80%Check
Caves78%Check
America77%Check
Best Show Caves75%Check
National Caves72%Check
Caves Association72%Check
National Caves Association69%Check
Association America68%Check
Show more keywords and terms

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