Sun.org - SEO Checker

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Overview of the SEO Check
Meta information
80% 
Page quality
51% 
Page structure
100% 
Link structure
58% 
Server
80% 
External factors
100% 
SEO Score
Response time
0.10 s
File size
20.90 kB
Words
272
Media files
24
Number of links
92 internal / 0 external

Task list of SEO Improvements

Meta specifications

Title
(Critically important)
Your Online Museum of the Universe
The length of the page title is perfect. (330 pixels out of 580 max pixel length)
There are no duplicate words in the title
Meta description
(Critically important)
See the most beautiful images of the cosmos, starting with our solar system, proceeding to the Milky Way and reaching out into the Universe. Informative descriptions of the images let you dig deeper. Finally, you can buy genuine meteorites in our Museum Shop.
The meta description is too long: 1609 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
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.
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
csrf-paramauthenticity_token
csrf-tokenfELDfNDWWKQkc6UBlZv5ygRdIgoR-s2GI4Nsybag3_2OJOwCm74jYdMXLuwPDyCsSOGm5mPY8Hq_d4r5RNpi-A
descriptionSee the most beautiful images of the cosmos, starting with our solar system, proceeding to the Milky Way and reaching out into the Universe. Informative descriptions of the images let you dig deeper. Finally, you can buy genuine meteorites in our Museum Shop.
keywordsastronomy, meteorites, metals, ingots, sun, planets, solar system, nebula, galaxy, stars, star clusters, universe, image, images
publisherSun.org, Munich, Germany
dcterms.audienceGlobal
langen
charsetUTF-8

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Page quality

Content
(Critically important)
Words from the H1 heading are not used in the page content.
There are only 272 words on this page. Good pages should have about 800 words of useful content.
22.8% 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.
The average number of words per sentence of 12 words is good.
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 loads 4 JavaScript files. This may affect the load time negatively.
Bold and strong tags
(Somewhat important)
The usage of strong and bold tags is perfect. We recommend the use of up to 6 tags for this page.
Image SEO
(Somewhat important)
Alt text (alternative text) is correctly used on all found images.
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
...f8a1ff2e0e93ad0a7f9ebffe514660a4fff0.jpgSun.org - Your Online Museum of the UniverseSee the most beautiful images within the cosmos and buy rare metal ingots or genuine meteorites in our Shop
...28aaad6b7b01688a488611b73e12f8138145.jpgEnglishView content in English
...dabd5f85c8fff865ab3b16d2080eeab97730.jpgDeutschInhalte auf Deutsch anzeigen
...caf56c0868f36f4a774c6966e4ad4efe34f6.jpgSunSun
...9e75d03803e0a5b7479697fafa6dace72f61.jpgMercuryMercury
...30a960eb7108212721cbdbbc377497c35050.jpgVenusVenus
...6cf39bd5973554caab9e9953f3b45686b578.jpgEarthEarth
...06266b7ef08f32725859717182b6e8cdd1cb.jpgMarsMars
...c21c4a24cede950d50db7f27a0e929e8f810.jpgAsteroids - Comets - Dwarf PlanetsAsteroids - Comets - Dwarf Planets
...4ad9eaea8d19920b423472c6e3296d80940a.jpgJupiterJupiter
...7e1fdc4138f563db7a8cbfc9e699b275e10f.jpgSaturnSaturn
...424512314e89ce3f2bce9b09adae394a03b2.jpgUranusUranus
...51015ca9de9dc1a16aaa4b6b249caa03519f.jpgNeptuneNeptune
...b91f01fafa12791333ca5d1cf1942d1f1225.jpgThe Milky Way GalaxyThe Milky Way Galaxy
...588af77c741d9f75c2494be9b447d9a2602c.jpgStar clusterStar cluster
...d86ad95aaea2bf68f3692c08cce8a1e612fc.jpgNebulaNebula
...4edd335f05990102989710ab80c89d196cd5.jpgBlack holeBlack hole
...32eab410277e07294224e06ab267ed67d847.jpgGalaxyGalaxy
...5aeb2679d2e131f5aba76f8971652abba71f.jpgGalaxy ClusterGalaxy Cluster
...77289fb0ffba97e95fee1ab58021be549410.jpgDeep SpaceDeep Space
...f31b1b9ad4a59b730b52c3d2939bff605afc.jpgBuy meteorites in our meteorite shopBuy meteorites in our meteorite shop
...de47aaf9b700c7527bcbf883439a6345d033.pngBuy rare metal ingots in our metal bar shopBuy rare metal ingots in our metal bar shop
...817d247e20d2c9cc542f7f0717d8bea8b03e.pngBuy rare metal ingots in our metal bar shopBuy rare metal ingots in our metal bar shop
...c4dbc6f0ae4e234e862f6e79da9117cf2499.jpgBuy meteorites in our meteorite shopBuy meteorites in our meteorite shop

Page structure

H1 heading
(Critically important)
Sun.org - Your Online Museum of the Universe
The H1 heading is perfect.
Headings
(Important)
The heading structure is perfect.

Heading structure

Heading levelContent
H1 Sun.org - Your Online Museum of the Universe
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 no external links on this page.

Found links on this page

LinkAttributesAnchor text
https://sun.org/IMG-ALT Sun.org - Your Online Museum of the Universe
https://sun.org/deDeutsch
https://sun.org/Home
https://sun.org/meteoriteshopMeteorite and Metal Bar Shop
/meteoritetypes/iron-meteoritesIron meteorites
/meteorites/campo-del-cieloCampo del Cielo
/meteorites/gebel-kamilGebel Kamil
/meteorites/sikhote-alinSikhote-Alin
/meteorites/other-iron-meteoritesOther iron meteorites
/meteoritetypes/stony-meteoritesStony meteorites
/meteorites/chelyabinskChelyabinsk
/meteorites/carbonaceous-chond...Carbonaceous chondrites
https://sun.org/meteorites/mreiraMreira
/meteorites/nwa-869NWA 869
/meteorites/nwa-xxxNWA XXX
/meteorites/other-stony-meteor...Other stony meteorites
/meteoritetypes/earth-specialsMetal Bar Shop
https://sun.org/oursolarsystemOur Solar System
https://sun.org/sunSun
https://sun.org/mercuryMercury
https://sun.org/venusVenus
https://sun.org/earthEarth
https://sun.org/marsMars
/asteroids-comets-dwarf-planetsAsteroids - Comets - Dwarf Planets
https://sun.org/jupiterJupiter
https://sun.org/saturnSaturn
https://sun.org/uranusUranus
https://sun.org/neptuneNeptune
https://sun.org/milkywayThe Milky Way
/the-milkyway-galaxyThe Milky Way Galaxy
https://sun.org/starclusterStar cluster
https://sun.org/nebulaNebula
https://sun.org/blackholeBlack hole
https://sun.org/universeThe Universe
https://sun.org/galaxyGalaxies
https://sun.org/galaxyclusterGalaxy Clusters
https://sun.org/deepspaceDeep Space
https://sun.org/encyclopedia/Encyclopedia
/encyclopedia/asteroids-meteor...Asteroids, meteoroids, meteors, meteorites, comets
/encyclopedia/a-short-history-...A Short History of the Universe
/encyclopedia/electromagnetic-...Electromagnetic spectrum
/encyclopedia/emission-nebulaEmission nebula
/encyclopedia/degeneracyDegeneracy
/encyclopedia/exoplanetsExoplanets
/encyclopedia/interstellar-mediumInterstellar medium
/encyclopedia/molecular-clouds...Molecular Clouds and Dark Nebulae
/encyclopedia/neutron-starNeutron star
/encyclopedia/q-a-astronomy-an...Q&A – Astronomy and Space
/encyclopedia/reflection-nebulaReflection nebula
/encyclopedia/black-holeText duplicate Black hole
/encyclopedia/black-holes-q-aBlack Holes Q&A
/encyclopedia/black-body-radia...Black body radiation
/encyclopedia/starsStars
/encyclopedia/supernovaSupernova
/encyclopedia/units-conversion...Units, Conversions and Numbers
https://sun.org/meteorite-galleryMeteorite Gallery
https://sun.org/specialsSpecial Topics
https://sun.org/exoplanetsText duplicate Exoplanets
https://sun.org/changemoonA different night sky
https://sun.org/futuretelescopesFuture Telescopes
https://sun.org/3d-images3D images
https://sun.org/sunText duplicate IMG-ALT Sun
https://sun.org/mercuryText duplicate IMG-ALT Mercury
https://sun.org/venusText duplicate IMG-ALT Venus
https://sun.org/earthText duplicate IMG-ALT Earth
https://sun.org/marsText duplicate IMG-ALT Mars
/asteroids-comets-dwarf-planetsText duplicate IMG-ALT Asteroids - Comets - Dwarf Planets
https://sun.org/jupiterText duplicate IMG-ALT Jupiter
https://sun.org/saturnText duplicate IMG-ALT Saturn
https://sun.org/uranusText duplicate IMG-ALT Uranus
https://sun.org/neptuneText duplicate IMG-ALT Neptune
/the-milkyway-galaxyText duplicate IMG-ALT The Milky Way Galaxy
https://sun.org/starclusterText duplicate IMG-ALT Star cluster
https://sun.org/nebulaText duplicate IMG-ALT Nebula
https://sun.org/blackholeText duplicate IMG-ALT Black hole
https://sun.org/galaxyIMG-ALT Galaxy
https://sun.org/galaxyclusterIMG-ALT Galaxy Cluster
https://sun.org/deepspaceText duplicate IMG-ALT Deep Space
https://sun.org/meteoriteshopIMG-ALT Buy meteorites in our meteorite shop
/meteoritetypes/earth-specialsIMG-ALT Buy rare metal ingots in our metal bar shop
/meteoritetypes/earth-specialsText duplicate IMG-ALT Buy rare metal ingots in our metal bar shop
/meteoritetypes/earth-specialsShop for rare metals
/meteoritetypes/earth-specialsText duplicate Metal Bar Shop
https://sun.org/meteoriteshopText duplicate IMG-ALT Buy meteorites in our meteorite shop
https://sun.org/meteoriteshopMeteorite Shop
https://sun.org/meteoriteshopText duplicate Meteorite Shop
https://sun.org/meteorite-galleryMeteorite Gallery.
https://sun.org/sitemapSitemap
https://sun.org/aboutLegal info
https://sun.org/contactContact us
https://sun.org/termsTerms
https://sun.org/privacyPrivacy

Server configuration

HTTP redirects
(Critically important)
This page redirects to "https://sun.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 page uses GZip for compressed data transmission.
Performance
(Somewhat important)
This page loads 4 JavaScript files. This may affect the load time negatively.
The page response time is excellent with 0.10 seconds.
This page only loads 3 CSS files. That's ok.
The file size of the HTML document is fine (21 kB).

HTTP Response Header

NameValue
content-typetext/html; charset=utf-8
transfer-encodingchunked
connectionkeep-alive
status200 OK
cache-controlmax-age=0, private, must-revalidate
referrer-policystrict-origin-when-cross-origin
x-permitted-cross-domain-policiesnone
x-xss-protection1; mode=block
x-request-id8230882c-7db2-48eb-87ee-51163a4ca4b1
link</assets/application-649ce7fc3bd31d184b125e17806883c78469a8eebb545e1c3728ebc1bedbd7c5.css>; rel=preload; as=style; nopush,</assets/application-649ce7fc3bd31d184b125e17806883c78469a8eebb545e1c3728ebc1bedbd7c5.css>; rel=preload; as=style; nopush,</assets/application-5defbe4976822f879593656f4d4c57e5b42dff8753d27be0b676e6330327d02b.js>; rel=preload; as=script; nopush
x-download-optionsnoopen
etagW/"adb8aa66c5b238c063541e2c6e823895"
x-frame-optionsSAMEORIGIN
x-runtime0.076947
x-content-type-optionsnosniff
dateMon, 09 Sep 2024 06:49:04 GMT
set-cookie399 Characters
x-powered-byPhusion Passenger(R) 6.0.19
servernginx/1.18.0 + Phusion Passenger(R) 6.0.19
content-encodinggzip
statuscode200
http_versionHTTP/1.1

External factors

Blacklists
(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 384 referring domains.
This page has 3,432 backlinks.
This page has backlinks from 287 different ip addresses.
Facebook popularity
(Somewhat important)
The page has 0 shares and comments on Facebook.

Links from Wikipedia

You can find more links using Wikipedia search

Robots.txt

# See https://www.robotstxt.org/robotstxt.html for documentation on how to use the robots.txt file
Sitemap: https://www.sun.org/sitemap.xml.gz

Similar sites

Search preview

sun.org
Your Online Museum of the Universe
See the most beautiful images of the cosmos, starting with our solar system, proceeding to the Milky Way and reaching out into the Universe. Informative descriptions of the images let you dig deeper. Finally, you can buy genuine meteorites in our Museum Shop.

Most important keywords

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

KeywordResultRecheck
Universe75%Check
Museum75%Check
Online Museum69%Check
Sun68%Check
Online63%Check
org63%Check
Online Shop56%Check
Meteorite52%Check
Milky52%Check
Way52%Check
Show more keywords and terms

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