Diversalertnetwork.org - SEO Checker

Overview of the SEO Check
Meta information
58% 
Page quality
50% 
Page structure
100% 
Link structure
85% 
Server
66% 
External factors
100% 
SEO Score
Response time
0.73 s
File size
17.10 kB
Words
397
Media files
6
Number of links
35 internal / 5 external

Task list of SEO Improvements

Meta specifications

Title
(Critically important)
DAN: Divers Alert Network - Scuba Diving and Dive Safety Association
The page title should be shorter than 580 pixels. It is 633 pixels long. Optimize title
There are no duplicate words in the title
Meta description
(Critically important)
The meta description is missing.
Crawlability
(Critically important)
There are no problems in accessing the website.
Canonical URL
(Important)
http://www.diversalertnetwork.org/
The specified canonical link points to a different page.
Language
(Somewhat important)
Language detected in text: en
Server location: United States of America
One or more of the specified languages are not ISO standard (en, en-us, de, etc.)
The language is not specified in the HTML markup.
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 name is very long.
The domain is no subdomain.
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)
<span class="meta">HTTP-Header Content-Type</span><span style="font-weight: normal">: </span>utf-8
<span class="meta">Meta http-equiv Content-Type</span><span style="font-weight: normal">: </span>iso-8859-1
The specified character encodings are different.
Doctype
(Nice to have)
The doctype HTML 4.01 Strict 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
p:domain_verify6cc6c99ae9d8fda24104572dfbd5e22d
FORMATtext/xhtml
CHARSETISO=8859-1
OWNERDAN/durham/DAN@dan.org
DOCUMENTCOUNTRYCODEus
DC.DATE2011-12-12
AUTHORDAN/Durham/NC/DAN@dan.org
ABSTRACTDivers Alert Network (DAN) is a 501(c)(3) non-profit medical and research organization dedicated to the safety and health of recreational scuba divers. DAN is supported by the largest association of recreational divers in the world.
LASTUPDATE12/12/2011
ROBOTSindex,follow
DC.LANGUAGEen-us
DOCUMENTLANGUAGECODEen
copyrightCopyright (c) 1980-2020 by Divers Alert Network
securitypublic
robotsindex,follow
keywordsScuba Diving, Dive Safety, scuba divers, DAN, Divers Alert Network, SCUBA dive, dive accident insurance
Content-Typetext/html; charset=iso-8859-1
window-target_top

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Page quality

Content
(Critically important)
There are only 397 words on this page. Good pages should have about 1,000 words of useful content.
30.5% 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.
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 20.44 words is good.
Frames
(Critically important)
This website does not use a frameset.
Mobile optimization
(Somewhat important)
Multiple viewport tags are given. There should only be one.
No Apple touch icon is specified.
This website loads 4 javascript files. This may affect the load time negatively.
A viewport "width=1000" is provided.
Bold and strong tags
(Somewhat important)
The usage of strong and bold tags is perfect. We recommend the use of up to 8 tags for this page.
Image SEO
(Somewhat important)
6 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
/img/danlogo.pngNo alt attribute provided
/img/searchIcon.pngNo alt attribute provided
https://media.dan.org/mdn/25544.jpgNo alt attribute provided
https://media.dan.org/mdn/25543.jpgNo alt attribute provided
https://media.dan.org/mdn/25541.jpgNo alt attribute provided
https://media.dan.org/mdn/23092.jpgNo alt attribute provided

Page structure

H1 heading
(Critically important)
Divers Alert Network is Your Dive Safety Association
The H1 heading is perfect.
Headings
(Important)
The heading structure is perfect.

Heading structure

Heading levelContent
H1 Divers Alert Network is Your Dive Safety Association
H2 Diver Safety Resources
H2 Divers Helping Divers
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.
4 links don't have an anchor text.
The amount of internal links is ok.
None of the anchor texts is too long.
There are 5 external links on this page.
LinkAttributesAnchor text
/about/Divers Alert Network
/insurance/diveDive Accident Insurance *
/about/About DAN
/news/News & Announcements
/about/careersCareers
/contact/Contact Us
/liability/insuranceNo Text
/medical/No Text
/research/No Text
/training/No Text
/sitemapSite Map
/adsales/Advertise
/privacypolicyPrivacy Policy
/files/DAN-SocialMediaPolicy.pdfSocial Media Policy
https://appsdev.dan.org/logo-r...External Logo Policy
/copyright.aspTerms & Conditions
/?a=contactText duplicate Contact Us
/No Text
/Home
/membership/Membership
/medicalMedicine
/researchResearch
/trainingEducation
/insurance/Insurance
/store/Store
http://www.facebook.com/pages/...External No Text
https://twitter.com/DANglobals...External No Text
http://www.youtube.com/user/Di...External No Text
https://www.instagram.com/dive...External No Text
/aboutText duplicate About DAN
/contactContact DAN
/insurance/dive/Dive Accident Insurance
/liability/insurance/Liability Insurance
/health/Health & Diving
/partner/directory/Dive Business Directory
/travel/Travel Insurance
/diving-incidents/Diving Incidents
/pro/For Professionals
/biz/For Businesses
/development/donations.aspxDonate to DAN

Server configuration

HTTP redirects
(Critically important)
This website redirects to "https://www.diversalertnetwork.org/"
HTTP header
(Important)
The web server version is sent within the HTTP header.
The X-powered header is sent within the response header. (unnecessary)
This website uses GZip for compressed data transmission.
Performance
(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 website loads 4 javascript files. This may affect the load time negatively.
This website only loads 3 CSS files. That's ok.
The file size of the HTML document is fine (17 kB).

HTTP Response Header

NameValue
cache-controlprivate
content-typetext/html; charset=utf-8
content-encodinggzip
varyAccept-Encoding
serverMicrosoft-IIS/8.5
x-aspnet-version4.0.30319
set-cookie75 Characters
x-powered-byASP.NET
dateThu, 09 Apr 2020 14:25:39 GMT
content-length6910
statuscode200
http_versionHTTP/1.1

External factors

Blacklists
(Critically important)
This website is not classified "for adult only".
This website is not listed on the Shallalist.
This website is referenced by wikipedia.
This website has excellent links from other websites.
This website has backlinks from 4,113 referring domains.
This website has 1,051,168 backlinks.
This website has backlinks from 3,072 different ip addresses.
Facebook popularity
(Somewhat important)
This website is not very popular on facebook.
Listed on Webwiki
(Nice to have)
This website is listed on Webwiki.

Robots.txt

User-agent: *  
Disallow: /saba/
Disallow: /*canada.aspx

Facebook popularity

Shares / Likes / Comments
0

Only the data for the given URL is shown. We cannot determine the social actions for a linked fan page.

Most important keywords

Seobility found the following keywords. You can check the keyword optimization of this page for each keyword.

KeywordResultRecheck
Divers73%Check
Divers Alert Network71%Check
Alert68%Check
Network68%Check
Dive Safety Association63%Check
Safety57%Check
Scuba Diver56%Check
Scuba Dive56%Check
Scuba Divers56%Check
Diving Dive54%Check

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