Hmi.stanford.edu - SEO Checker

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Overview of the SEO Check
Meta information
66% 
Page quality
50% 
Page structure
79% 
Link structure
92% 
Server
45% 
External factors
100% 
SEO Score
Response time
0.31 s
File size
28.60 kB
Words
380
Media files
10
Number of links
28 internal / 26 external

Task list of SEO Improvements

Meta specifications

Title
(Critically important)
Helioseismic and Magnetic Imager for SDO
The length of the page title is perfect. (387 pixels out of 580 max pixel length)
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)
No canonical link is specified.
Language
(Somewhat important)
Language detected in text: en
Server location: United States of America
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)
This page is hosted on a subdomain. Use a top level domain for better SEO results.
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.
The character encoding is not specified in the HTTP header.
Doctype
(Nice to have)
The doctype XHTML 1.0 Strict is set correctly.
The doctype is placed at first in the HTML code.
Favicon
(Nice to have)
No favicon is linked in the HTML code.

Meta tags

NameValue
Content-Typetext/html; charset=UTF-8

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Page quality

Content
(Critically important)
There are only 380 words on this page. Good pages should have about 800 words of useful content.
The average number of words per sentence of 26.33 words is high.
25.3% 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.
3 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)
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)
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)
8 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)
The HTTPS protocol for secure data transmission is not used.

Media list

URLAlt attributeTitle
/hmi_files/hmi_top.jpgHMI Banner
/hmi_files/arrow0.gifNo alt attribute provided
/hmi_files/arrow0.gifNo alt attribute provided
/hmi_files/arrow0.gifNo alt attribute provided
/hmi_files/arrow0.gifNo alt attribute provided
/hmi_files/arrow0.gifNo alt attribute provided
/hmi_files/arrow0.gifNo alt attribute provided
/hmi_files/arrow0.gifNo alt attribute provided
/hmi_files/arrow0.gifNo alt attribute provided
/hmi_files/cover_tiny1.jpgstructure of the sun's interior

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
H3 What is the Helioseismic and Magnetic Imager (HMI)?
H3 What data products are available?
H3 Where can I get HMI data?
H3 Recent Findings Concerning SDO/HMI Science Goals
H3 Media
H3 Links
Some anchor texts are used more than once.
2 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 (26) on this page.

Found links on this page

LinkAttributesAnchor text
http://hmi.stanford.edu/Subdomain The HMI Investigation
/Description/HMI_Overview.htmlSubdomain Overview of Objectives
/Description/hmi-overview/hmi-...Subdomain Overview of HMI
/Description/HMI_Overview.pdfSubdomain PDF version
/Description/hmi-overview/hmi-...Subdomain Anchor Implementation of HMI
/proposal_April_2002/Subdomain Proposal to NASA (Apr. 2002)
http://jsoc.stanford.edu/External Subdomain Data Access (JSOC)
http://jsoc.stanford.edu/External Subdomain JSOC Main Page
http://jsoc.stanford.edu/jsocw...External Subdomain JSOC Wiki
http://jsoc.stanford.edu/doxyg...External Subdomain JSOC Man. Pages
http://jsoc.stanford.edu/ajax/...External Subdomain JSOC Simple Data Export
http://jsoc.stanford.edu/data/...External Subdomain Latest HMI Images
/launch.htmlSubdomain SDO Launch and First Light
http://hmi.stanford.edu/Press/Subdomain News
/hminuggets/Subdomain HMI Nuggets
http://hmi.stanford.edu/papers/Subdomain Papers and Publications
/ScienceTeam/index.htmlSubdomain Team List
/TeamMeetings/Subdomain Team Meetings
http://hmi.stanford.edu/mtgs/Subdomain Other Meetings
/ScienceWG/Subdomain Science Working Groups
/ScienceTeam/HMI_everybody.txtSubdomain hmi_everybody email list
/development/Subdomain HMI Development Phase
/Shared_Admin/Subdomain HMI Admin (admin use only)
/Requirements/Subdomain HMI Requirements
/Presentations/Subdomain Presentations
/Status_Reports/Subdomain HMI Periodic Status Reports
http://hmi.stanford.edu/doc/Subdomain Document File
/doc/Tech_Notes/TechNoteIndex....Subdomain HMI Technical Documents
http://jsoc.stanford.edu/External Subdomain Joint Science Operations Center (JSOC)
http://aia.lmsal.com/External Subdomain AIA Home Page
http://lasp.colorado.edu/eve/External Subdomain EVE Home Page
http://sdo.gsfc.nasa.gov/External Subdomain NASA SDO (GSFC/NASA)
http://solar-center.stanford.edu/External Subdomain SOLAR Center
http://sun.stanford.edu/External Subdomain Stanford Solar Observatories Group
http://hmi.stanford.edu/sdowikiSubdomain SDO Planning Wiki
/Description/HMI_Cover_Descrip...Subdomain IMG-ALT structure of the sun's interior
http://soi.stanford.edu/External Subdomain Michelson Doppler Imager
http://jsoc.stanford.edu/External Subdomain see the left sidebar on the JSOC page.
http://jsoc.stanford.edu/External Subdomain SDO HMI and AIA Joint Science Operations Center (JSOC)
http://jsoc.stanford.edu/data/...External Subdomain latest HMI images here
/hminuggets/Subdomain HMI Science Nuggets
http://www.youtube.com/watch?v...New window External Subdomain Intro to SDO Movie
http://www.youtube.com/watch?v...New window External Subdomain Intro to HMI Movie
http://jsoc.stanford.edu/External Subdomain JSOC - HMI/AIA Joint Science Operations Center
http://aia.lmsal.com/External Subdomain SDO's Atmospheric Imaging Assembly (AIA)
http://lasp.colorado.edu/eve/External Subdomain SDO's Extreme ultraviolet Variability Experiment (EVE)
http://sdo.gsfc.nasa.gov/External Subdomain SDO Solar Dynamics Observatory Home Page (GSFC/NASA)
http://hmi.stanford.edu/sdowikiSubdomain Text duplicate SDO Planning Wiki
http://solar-center.stanford.edu/External Subdomain The Stanford SOLAR Center Educational Website
http://sun.stanford.edu/External Subdomain Stanford Solar Observatories Group Home
http://sun.stanford.edu/server...External Subdomain WWW Access Statistics
/index.htmlNo Text
/index.htmlNo Text
http://sdo.gsfc.nasa.gov/External Subdomain No Text

Server configuration

HTTP redirects
(Critically important)
The checked page does not redirect to another URL.
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 excellent with 0.31 seconds.
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 (29 kB).

HTTP Response Header

NameValue
dateTue, 22 Oct 2024 19:57:22 GMT
serverApache/2.2.3 (CentOS)
accept-rangesbytes
content-length29319
connectionclose
content-typetext/html
statuscode200
http_versionHTTP/1.1

External factors

This website has excellent links from other websites.
This page has backlinks from 348 referring domains.
This page has 300,095 backlinks.
This page has backlinks from 245 different ip addresses.

Links from Wikipedia

No links from Wikipedia were found.

Robots.txt

UserAgent: *
Disallow: /development/
Disallow: /Shared_Admin/
Disallow: /wwwstats.html
Disallow: /wwwstats_last.html
Disallow: /doc
Disallow: /NASA_documents
Disallow: /Status_Reports

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Search preview

Most important keywords

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

KeywordResultRecheck
HMI63%Check
SDO HMI59%Check
SDO54%Check
HMI Science54%Check
HMI data52%Check
Stanford51%Check
Magnetic50%Check
Imager50%Check
Helioseismic50%Check
Magnetic Imager50%Check
Show more keywords and terms

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