Ion.org - SEO Checker

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Overview of the SEO Check
Meta information
80% 
Page quality
36% 
Page structure
79% 
Link structure
95% 
Server
0% 
External factors
100% 
SEO Score
Response time
1.85 s
File size
50.10 kB
Words
365
Media files
14
Number of links
68 internal / 15 external

Task list of SEO Improvements

Meta specifications

Title
(Critically important)
The Institute of Navigation
The length of the page title is perfect. (238 pixels out of 580 max pixel length)
There are no duplicate words in the title
Meta description
(Critically important)
The Institute of Navigation is the world's premier non-profit professional society dedicated to the advancement of the art and science of positioning, navigation and timing (PNT).
The meta description is too long: 1083 pixels from max. 1000 pixels. Optimize description
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
Language defined in HTTP-Equiv meta tag: en-us
Server location: United States of America
There are different language information within the page markup.
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
viewportwidth=device-width, initial-scale=1.0
DescriptionThe Institute of Navigation is the world's premier non-profit professional society dedicated to the advancement of the art and science of positioning, navigation and timing (PNT).
msapplication-TileColor#ffffff
msapplication-TileImage/images/favicons/ms-icon-144x144.png
theme-color#ffffff
langen
Content-Typetext/html; charset=UTF-8
Content-Languageen-us
charsetutf-8

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Page quality

Content
(Critically important)
There are only 365 words on this page. Good pages should have about 800 words of useful content.
The average number of words per sentence of 76 words is high.
17.3% 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.
4 paragraphs were found on this page.
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)
This page loads 19 JavaScript files. This may affect the load time negatively.
A viewport "width=device-width, initial-scale=1.0" 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 7 tags for this page.
Image SEO
(Somewhat important)
5 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
/templates/assets/img/ion-logo.pngION Logo
/itm/images/ITM23-Carousel-Background.pngITM-PTTI 2023
/itm/images/ITM-PTTI19-Carousel-ITM2.pngNo alt attribute provided
/itm/images/ITM-PTTI19-Carousel-PTTI.pngNo alt attribute provided
/plans/images/PLANS2025-Subsite.pngIEEE/ION PLANS
/plans/images/PLANS25-Carousel-Dates.pngNo alt attribute provided
/jnc/images/JNC25-Carousel-Background.pngSlide background
...images/Standards-Carousel-Background.pngSlide background
...mages/Standards-Carousel-Slide-Text1.pngSlider Image
/gnss/images/GNSS25-Carousel-Background.pngION GNSS+
/gnss/images/GNSS25-Carousel-Text.pngNo alt attribute provided
https://www.ion.org/images/youtube-sub.pngNo alt attribute provided
/images/ion-logo-big_1.pngION Logo FooterION Logo Footer

Page structure

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

Heading structure

Heading levelContent
H2 ITM 2025
H2 PTTI 2025
H2 IEEE/ION PLANS 2025
H2 ION JNC 2025
H2 Find a Paper
H2 Donate to ION
H2 Open Access Journal Articles
H2 ION Newsletter
H2 Job Board
H2 Corporate Member Directory
H2 ION Videos
H2 Posts from ION
H2 Useful Links
H2 Contact Us
Some anchor texts are used more than once.
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 15 external links on this page.

Found links on this page

LinkAttributesAnchor text
https://www.ion.org/IMG-ALT ION Logo
https://www.ion.org/sign-in.cfmSign In
https://www.ion.org/Home
https://www.ion.org/about/About ION
/about/index.cfmText duplicate About ION
/news/index.cfmNews and Announcements
/governance/index.cfmGovernance
/awards/index.cfmAwards and ION Fellows
/about/affiliate-partners.cfmAffiliate Partners
/about/contact.cfmContact ION
https://www.ion.org/meetings/Meetings
https://www.ion.org/itm/index.cfmInternational Technical Meeting
/ptti/index.cfmPTTI
https://www.ion.org/pnt/index.cfmPacific PNT
/plans/index.cfmIEEE/ION PLANS
/magnav/index.cfmMagnetic Navigation Workshop
https://www.ion.org/jnc/index.cfmJoint Navigation Conference
/gnss/index.cfmION GNSS+
https://www.ion.org/abstracts/Subdomain Abstract Management Portal (AMP)
https://www.ion.org/membership/Membership
/membership/index.cfmMembership Information
/membership/join-renew.cfmJoin or Renew
/membership/government-fellows...Government Fellows
/membership/local-sections.cfmRegional Sections
/about/volunteer.cfmVolunteer with ION
/membership/corporate-member-d...Corporate Member Directory
https://www.ion.org/publications/Technical Content
/publications/browse.cfmSearch/Browse Publications
/navi/index.cfmJournal
/publications/newsletter.cfmNewsletter
/publications/browse.cfmProceedings
https://sdr.ion.org/External Subdomain SDR Metadata Standard
/publications/other-publicatio...Other Publications
/publications/download-subscri...Download Subscriptions
/publications/order-publicatio...Purchase Publications
/publications/Online-Tutorials...Online Tutorials
/publications/webinars.cfmWebinars
https://www.ion.org/outreach/Resources
https://www.ion.org/job-board.cfmJob Board
/outreach/student-programs.cfmStudent Programs
/news/internationalgnssday.cfmInternational GNSS Day
/outreach/african-outreach.cfmAfrica Outreach Program
/gnss/googlecompetition.cfmSmartphone Decimeter Challenge
http://www.autosnowplow.com/External Subdomain Autonomous Snowplow Competition
http://www.ion.org/museum/Subdomain ION Virtual Museum
/outreach/lesson-plans.cfmNavigation Lesson Plans
/outreach/REACH-STEM-Early-Mar...IEEE REACH: STEM Lesson Module
https://rntfnd.org/find-gps/External RNT Foundation GPS Cafe
/outreach/IEEE-PNT-Standard-P1...IEEE PNT Standard (P1952)
/itm/program.cfmITM 2025 Program
/ptti/program.cfmPTTI 2025 Program
/plans/program.cfmTechnical Program
/jnc/call-for-abstracts.cfmAbstracts Due: February 3
http://sdr.ion.org/External Subdomain Review the Standard
https://www.ion.org/gnss/Abstracts Due: March 3
/itm/registration.cfmRegister Today
https://www.ion.org/itm/index.cfmITM 2025 January 27-30, 2025 Long Beach, CA
/ptti/index.cfmPTTI 2025 January 27-30, 2025 Long Beach, CA
/plans/index.cfmIEEE/ION PLANS 2025 April 28-May 1, 2025 Salt Lake City, Utah
https://www.ion.org/jnc/index.cfmION JNC 2025 June 2-5, 2025 Covington, KY
/publications/browse.cfmFind a Paper
/about/donate.cfmDonate to ION
https://navi.ion.org/External Subdomain Open Access Journal Articles
/newsletter/index.cfmION Newsletter
https://www.ion.org/job-board.cfmText duplicate Job Board
/membership/corporate-member-d...Text duplicate Corporate Member Directory
https://www.youtube.com/user/I...External Subdomain No Text
https://www.instagram.com/iona...New window External Subdomain View this profile on Instagram
https://www.instagram.com/iona...New window External Subdomain Institute of Navigation
https://www.instagram.com/iona...New window External Subdomain ionavigation
https://www.ion.org/index.cfmIMG-ALT ION Logo Footer
/about/index.cfmText duplicate About ION
/meetings/index.cfmText duplicate Meetings
/membership/index.cfmText duplicate Membership
/publications/index.cfmPublications
/outreach/index.cfmOutreach
/about/terms-privacy.cfmPrivacy Policy and Terms of Service
https://www.instagram.com/iona...External Subdomain No Text
https://www.facebook.com/ionav...External Subdomain No Text
https://www.linkedin.com/compa...External Subdomain No Text
https://twitter.com/ionavigationExternal No Text
https://www.youtube.com/@ionav...External Subdomain No Text
https://www.threads.net/@ionav...External Subdomain No Text

Server configuration

HTTP redirects
(Critically important)
This page redirects to "https://www.ion.org/"
HTTP header
(Important)
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.
Performance
(Somewhat important)
The page response time is very slow (1.85 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 15 CSS files. This may affect the page load time negatively.
This page loads 19 JavaScript files. This may affect the load time negatively.
The file size of the HTML document is fine (50 kB).

HTTP Response Header

NameValue
transfer-encodingchunked
content-typetext/html;charset=UTF-8
serverMicrosoft-IIS/8.5
set-cookie78 Characters
x-frame-optionsSAMEORIGIN
dateSat, 28 Dec 2024 00:47:27 GMT
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 3,687 referring domains.
This page has 30,019 backlinks.
This page has backlinks from 928 different ip addresses.

Links from Wikipedia

You can find more links using Wikipedia search

Robots.txt

Sitemap: https://www.ion.org/sitemap.xml
User-agent: *

Disallow: /satdiv/*
Disallow: /sections/*
Disallow: /publications/toc/*
Disallow: /meetings/itm2012*
Disallow: /meetings/itm2013*
Disallow: /meetings/gnss2007*
Disallow: /meetings/gnss2008*
Disallow: /meetings/gnss2009*
Disallow: /meetings/gnss2010*
Disallow: /meetings/gnss2011*
Disallow: /meetings/gnss2012*
Disallow: /meetings/gnss2013*
Disallow: /education/*
Allow: /abstracts/photos/
Disallow: /abstracts/*
Disallow: /search/*
Disallow: /*rogram.pdf

User-agent: Goldfire Server
Disallow: /

User-agent: AhrefsBot
Disallow: /

User-agent: Alexibot
Disallow: /

User-agent: MJ12bot
Disallow: /

User-agent: SurveyBot
Disallow: /

User-agent: Xenu?s
Disallow: /

User-agent: Xenu?s Link Sleuth 1.1c
Disallow: /

User-agent: rogerbot
Disallow:/

User-agent: dotbot 
Disallow: /

Similar sites

Search preview

www.ion.org
The Institute of Navigation
The Institute of Navigation is the world's premier non-profit professional society dedicated to the advancement of the art and science of positioning, navigation and timing (PNT).

Most important keywords

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

KeywordResultRecheck
ION80%Check
navigation58%Check
Institute58%Check
ION Newsletter57%Check
IEEE ION PLANS51%Check
PNT46%Check
Positioning46%Check
Timing46%Check
professional46%Check
PTTI 202545%Check
Show more keywords and terms

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