Planetarium-jena.de - SEO Checker

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Overview of the SEO Check
Meta information
80% 
Page quality
44% 
Page structure
58% 
Link structure
25% 
Server
70% 
External factors
100% 
SEO Score
Response time
0.88 s
File size
57.30 kB
Words
448
Media files
28
Number of links
90 internal / 5 external

Task list of SEO Improvements

Meta specifications

Title
(Critically important)
Startseite - Zeiss-Planetarium Jena
The length of the page title is perfect. (315 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)
https://planetarium-jena.de/
There is a valid canonical link specified.
Language
(Somewhat important)
Language detected in text: de
Language defined in HTML: de-de
Server location: United States of America
The following language is defined by HTML: de-de
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
HandheldFriendlyTrue
MobileOptimized320
google-site-verificationXhlZh7ntbwmSczhXU6mMKaCw0nMMxhtaRwsJjqvuL80
viewportwidth=device-width, initial-scale=1.0
msapplication-TileColor#f01d4f
msapplication-TileImagehttps://planetarium-jena.de/wp-content/themes/zeiss-planetarium/library/images/win8-tile-icon.png
robotsindex, follow, max-image-preview:large, max-snippet:-1, max-video-preview:-1
article:modified_time2024-09-16T09:23:49+00:00
langde-de
twitter:cardsummary_large_image
og:localede_DE
og:typewebsite
og:titleStartseite - Zeiss-Planetarium Jena
og:descriptionLiebe Gäste! Ihre Tickets können Sie bereits im Vorfeld ganz bequem in unserem Online-Ticketshop erwerben. Wir freuen uns auf Sie! Bitte reisen Sie, aufgrund der angespannten Parkplatzsituation in Jena, mit einem kleinen Zeitpuffer an. Gern können Sie sich bei Anreise hier informieren: Parkleitsystem der Stadt Jena live.
og:urlhttps://planetarium-jena.de/
og:site_nameZeiss-Planetarium Jena
X-UA-CompatibleIE=edge
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 448 words on this page. Good pages should have about 800 words of useful content.
There are 3 text duplicates on this page:
  • Duplicate: Abenteuer in der Kuppel! Wir brechen die Dimensionen des Formates regu...
30.8% 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.
11 paragraphs were found on this page.
No placeholders texts or images were found.
The average number of words per sentence of 11.9 words is good.
Frames
(Critically important)
This page does not use a frameset.
Mobile optimization
(Somewhat important)
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 9 tags for this page.
Image SEO
(Somewhat important)
25 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
...ibrary/images/zeiss-planetarium-icon.pngZeiss-Planetarium Jena
/wp-content/uploads/2017/06/slide3slim.jpgNo alt attribute provided
...oads/2024/03/Dinosaurier_03-1600x600.jpgDinosaurier - Unser neues Kinderprogramm
...oads/2020/06/Header10_750px-1600x600.jpgNo alt attribute provided
...ploads/2020/02/SpaceTour-02-1600x600.jpgNo alt attribute provided
...ntent/uploads/2017/07/UWE_01-350x144.jpgNo alt attribute provided
...ntent/uploads/2017/11/EdW_02-350x144.jpgNo alt attribute provided
.../uploads/2017/07/Planeten_01-350x144.jpgNo alt attribute provided
...uploads/2023/05/Programmplan-350x144.jpgNo alt attribute provided
...9/10/Space-Tour-Programmplan-350x144.jpgNo alt attribute provided
...nt/uploads/2017/11/bestof_04-350x144.jpgNo alt attribute provided
...ntent/uploads/2017/07/UWE_01-350x144.jpgNo alt attribute provided
...21/05/LebenderBaeume_Vibus-1-350x144.jpgNo alt attribute provided
...2023/05/Zukunft_Programmplan-350x144.jpgNo alt attribute provided
.../05/PinkFloyd_00Programmplan-350x144.jpgNo alt attribute provided
.../2017/07/mondscheindinner_01-350x144.jpgNo alt attribute provided
...uploads/2023/05/Programmplan-350x144.jpgNo alt attribute provided
...uploads/2024/04/Kanada_A_18-560x306.jpegNo alt attribute provided
...t/uploads/2023/06/PANA4893-2-560x306.jpgNo alt attribute provided
...2022/05/Kilimandscharo-01522-560x306.jpgNo alt attribute provided
...ow-Thumbnail-final-scaled-V2-560x306.jpgNo alt attribute provided
...oads/2022/10/YogaintheDome_1-560x306.jpgNo alt attribute provided
...oads/2024/07/programmkachel4-560x306.jpgNo alt attribute provided
...ontent/uploads/2017/11/SL_03-560x306.jpgNo alt attribute provided
...en_Planetarium-Shows_IG-Post-560x306.jpgNo alt attribute provided
...NDW_Jena_2024-e1724668216959-560x306.jpgNo alt attribute provided
...planetarium/library/images/button_up.pngNach Oben

Page structure

H1 heading
(Critically important)
Willkommen in der Raumzeitmaschine Zeiss-Planetarium Jena
The H1 heading contains the words Willkommen in! Use important keywords instead.
Headings
(Important)
Some headings occur twice on the page.
Some headings do not have any content.

Heading structure

Heading levelContent
H1 Willkommen in der Raumzeitmaschine Zeiss-Planetarium Jena
H2 Dinosaurier - Unser neues Kinderprogramm
H2 LIVE VORTRAG: Kanada - Durch Weite und Wildnis
H2 LIVE VORTRAG: Zu Fuß durch Deutschland
H2 LIVE VORTRAG: Safari zum Himmel
H2 Sternenlese Programm
H2 Yoga In The Dome
H2 Neue Musikshow ab November: Stars of Classic
H2 Planetarium Aktuell
H2 Deine Lakaien (AUSVERKAUFT!)
H2 Lange Nacht der Wissenschaften 2024
H2 Empty heading
H3 Nächste Programme
H3 Unser Weltall
H3 Die Entdeckung des Weltalls
H3 Planeten
H3 Magic Globe
H3 Space Tour
H3 Best Of Show
H3 Unser Weltall Duplicate text
H3 Das Geheimnis der Bäume
H3 Zukunft
H3 Pink Floyd – Nur bis Ende 2024
H3 Mondscheindinner
H3 Magic Globe Duplicate text
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.
21 links don't have an anchor text.
There are 9 links with a trivial anchor text.
The number of internal links is ok.
None of the anchor texts is too long.
There are 5 external links on this page.

Found links on this page

LinkAttributesAnchor text
https://planetarium-jena.de/Nofollow Zeiss-Planetarium Jena
IMG-ALT Zeiss-Planetarium Jena
/programm/dinosaurier/Dinosaurier - Unser neues Kinderprogramm
https://planetarium-jena.de/Startseite
/programme-2/Programme
/programme-2/programmplan/Programmplan
/programme-2/preise/Preise
/programme-2/bildungsprogramme/Bildungsprogramme
/programme-2/familienprogramme/Familienprogramme
/programme-2/musikshows/Musikshows
/programme-2/sonderveranstaltu...Sonderveranstaltungen
/besuch-planen/Besuch planen
/besuch-planen/anfahrt/Anfahrt
/besuch-planen/reisegruppen/Reisegruppen
/besuch-planen/schulklassen/Schulklassen
/besuch-planen/optisches-museum/Optisches Museum
/spezial/Spezial
/spezial/feiern-im-planetarium/Feiern im Planetarium
/spezial/mondscheindinner/Mondscheindinner
/spezial/sternpatenschaft/Sternpatenschaft
/spezial/gutscheine/Gutscheine
/spezial/mobiles-planetarium/Mobiles Planetarium
/gastronomie/Gastronomie
/gastronomie/bistro-im-planeta...Bistro im Planetarium
/gastronomie/restaurant-bauers...Restaurant Bauersfeld
/ueber-uns/Über uns
/ueber-uns/kontakt/Kontakt
/ueber-uns/oeffnungszeiten/Öffnungszeiten
/ueber-uns/geschichte/Geschichte
/ueber-uns/presse/Presse
/ueber-uns/stellenangebote/Stellenangebote
/impressum/Impressum
/datenschutz/Datenschutz
https://planetarium-jena.de/agb/AGB
https://planetarium-jena.de/Nofollow Text duplicate Zeiss-Planetarium Jena
/programme-2/programmplan/Nächste Programme
/programm/unser-weltall/No Text
/programm/unser-weltall/Unser Weltall 18.09.2024 - 10:00 Uhr
/programm/die-entdeckung-des-w...No Text
/programm/die-entdeckung-des-w...Die Entdeckung des Weltalls 18.09.2024 - 11:30 Uhr
/programm/planeten/No Text
/programm/planeten/Planeten 18.09.2024 - 13:00 Uhr
/programm/magic-globe/No Text
/programm/magic-globe/Magic Globe 18.09.2024 - 14:30 Uhr
/programm/space-tour/No Text
/programm/space-tour/Space Tour 18.09.2024 - 20:00 Uhr
/programm/best-of-show/No Text
/programm/best-of-show/Best Of Show 19.09.2024 - 10:00 Uhr
/programm/unser-weltall/No Text
/programm/unser-weltall/Unser Weltall 19.09.2024 - 11:30 Uhr
/programm/das-geheimnis-der-ba...No Text
/programm/das-geheimnis-der-ba...Das Geheimnis der Bäume 19.09.2024 - 13:00 Uhr
/programm/zukunft/No Text
/programm/zukunft/Zukunft 19.09.2024 - 14:30 Uhr
/programm/pink-floyd/No Text
/programm/pink-floyd/Pink Floyd – Nur bis Ende 2024 19.09.2024 - 17:30 Uhr
/programm/mondscheindinner/No Text
/programm/mondscheindinner/Mondscheindinner 19.09.2024 - 19:00 Uhr
/programm/magic-globe/No Text
/programm/magic-globe/Magic Globe 20.09.2024 - 10:00 Uhr
/programme/programmplan/New window Subdomain Online-Ticketshop
https://mobilitaet.jena.de/parkenExternal Subdomain Parkleitsystem der Stadt Jena live.
/programm/kanada-durch-weite-u...LIVE VORTRAG: Kanada - Durch Weite und Wildnis
/programm/kanada-durch-weite-u...No Text
/programm/kanada-durch-weite-u...Trivial anchor text
mehr lesen
/programm/zu-fuss-durch-deutsc...LIVE VORTRAG: Zu Fuß durch Deutschland
/programm/zu-fuss-durch-deutsc...No Text
/programm/zu-fuss-durch-deutsc...Text duplicate Trivial anchor text
mehr lesen
/programm/safari-zum-himmel-li...LIVE VORTRAG: Safari zum Himmel
/programm/safari-zum-himmel-li...No Text
/programm/safari-zum-himmel-li...Text duplicate Trivial anchor text
mehr lesen
/programm/sternenlese/Subdomain Sternenlese Programm
/programm/sternenlese/Subdomain No Text
/programm/sternenlese/Subdomain Text duplicate Trivial anchor text
mehr lesen
/programm/yoga-deutsch/Subdomain Yoga In The Dome
/programm/yoga-deutsch/Subdomain No Text
/programm/yoga-deutsch/Subdomain Text duplicate Trivial anchor text
mehr lesen
/programm/stars-of-classic/Subdomain Neue Musikshow ab November: Stars of Classic
/programm/stars-of-classic/Subdomain No Text
/programm/stars-of-classic/Subdomain Text duplicate Trivial anchor text
mehr lesen
/kategorie/science-blog/Subdomain Planetarium Aktuell
/kategorie/science-blog/Subdomain No Text
/kategorie/science-blog/Subdomain Text duplicate Trivial anchor text
mehr lesen
/programm/deine-lakaien/Deine Lakaien (AUSVERKAUFT!)
/programm/deine-lakaien/No Text
/programm/deine-lakaien/Text duplicate Trivial anchor text
mehr lesen
/?page_id=96513&preview=trueLange Nacht der Wissenschaften 2024
/?page_id=96513&preview=trueNo Text
/?page_id=96513&preview=trueText duplicate Trivial anchor text
mehr lesen
https://planetarium-jena.de/agb/Text duplicate AGB
/impressum/Text duplicate Impressum
/datenschutz/Text duplicate Datenschutz
https://www.instagram.com/plan...New window External Subdomain No Text
https://www.facebook.com/plane...New window External Subdomain No Text
https://www.youtube.com/ZeissP...New window External Subdomain No Text
https://twitter.com/planetariu...New window External No Text

Server configuration

HTTP redirects
(Critically important)
This page redirects to "https://planetarium-jena.de/"
HTTP header
(Important)
The X-powered header is sent within the response header. (unnecessary)
This page uses GZip for compressed data transmission.
Performance
(Somewhat important)
The page response time of 0.88 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.
A Content Delivery Network like Google Hosted Libraries can save bandwidth for the JQuery files.
The file size of the HTML document is fine (57 kB).

HTTP Response Header

NameValue
servernginx
dateWed, 18 Sep 2024 00:09:32 GMT
content-typetext/html; charset=UTF-8
content-length9206
x-powered-byPHP/8.0.30
link<https://planetarium-jena.de/wp-json/>; rel="https://api.w.org/", <https://planetarium-jena.de/wp-json/wp/v2/pages/11583>; rel="alternate"; title="JSON"; type="application/json", <https://planetarium-jena.de/>; rel=shortlink
varyAccept-Encoding
content-encodinggzip
strict-transport-securitymax-age=63072000; includeSubDomains
statuscode200
http_versionHTTP/2

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 644 referring domains.
This page has 13,414 backlinks.
This page has backlinks from 466 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

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

Sitemap: https://planetarium-jena.de/sitemap_index.xml
# ---------------------------
# END YOAST BLOCK

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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
Planetarium81%Check
Jena77%Check
Zeiss-Planetarium Jena71%Check
Zeiss-Planetarium65%Check
im Planetarium63%Check
Stadt Jena56%Check
Willkommen50%Check
Raumzeitmaschine50%Check
Startseite46%Check
Programm46%Check
Show more keywords and terms

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