Übersicht der SEO Analyse
Metaangaben
80% 
Seitenqualität
89% 
Seitenstruktur
94% 
Verlinkung
25% 
Server
91% 
Externe Faktoren
100% 
SEO Score
Antwortzeit
0,21 s
Dateigröße
201,60 kB
Wörter
2298
Medien
23
Anzahl Links
599 Intern / 23 Extern

To-do Liste mit SEO Optimierungen

Meta-Angaben im HTML

Titel
(Extrem wichtig)
ESO
Der Titel ist zu kurz. (44 Pixel von maximal 580 Pixel Länge) Jetzt optimieren
Der Seitentitel besteht nur aus einem Wort.
Es gibt keine Wortwiederholungen im Titel.
Meta-Description
(Extrem wichtig)
ESO, European Organisation for Astronomical Research in the Southern Hemisphere
Die Meta-Description hat eine optimale Länge. (524 Pixel von maximal 1000 Pixel Länge)
Crawlbarkeit
(Extrem wichtig)
Es gibt keine Probleme beim Zugriff auf die Webseite.
Canonical Link
(Wichtig)
Es ist kein Canonical Link angegeben.
Sprache
(Wenig wichtig)
Im Text erkannte Sprache: en
Im HTML angegebene Sprache: en
Serverstandort: Vereinigte Staaten von Amerika
Die Sprache wird im HTML Code wie folgt angegeben: en
Alternate/Hreflang Links
(Wenig wichtig)
Die angegebenen Alternate Links sind fehlerfrei.
Weitere Metatags
(Wenig wichtig)
Es gibt keinen rel next Meta Tag auf der Seite.
Es gibt keinen rel prev Meta Tag auf der Seite.
Domain
(Wenig wichtig)
Die Domain ist keine Subdomain.
Die Länge der Domain ist gut.
Die Domain enthält keine Umlaute.
Seiten URL
(Wenig wichtig)
In der URL wurden keine Parameter entdeckt.
In der URL wurde keine Session ID entdeckt.
Die URL hat nicht zu viele Unterverzeichnisse.
Zeichensatzkodierung
(Wenig wichtig)
Die Angaben zur Zeichensatzkodierung (UTF-8) sind fehlerfrei.
Doctype
(Nice to have)
Die Doctype Angabe HTML 5 ist korrekt angegeben.
Die Doctype Angabe befindet sich an erster Stelle im HTML-Code.
Favicon
(Nice to have)
Das Favoriten Icon (Favicon) ist korrekt verlinkt.

Meta Tags

NameWert
viewportwidth=device-width, initial-scale=1
robotsindex,follow
author[email protected]
descriptionESO, European Organisation for Astronomical Research in the Southern Hemisphere
keywordsESO, eso.org, Astronomy, Astrophysics, Astronomie, Suedsternwarte, telescopes, detectors, comets, planets, stars, galaxies, nebulae, universe, NTT, VLT, VLTI, ALMA, ELT, La Silla, Paranal, Garching, Chile
statvooVerificationf546f5bccd3fb7f8c5d8e97c6beab814
langen
twitter:cardsummary
twitter:site@ESO
twitter:creator@ESO
og:titleESO — The European Southern Observatory
og:descriptionWelcome to the most powerful astronomical observatories in the world.
og:imagehttps://cdn.eso.org/images/screen/uhd_yuri_alma_ant_cc.jpg
og:image:secure_urlhttps://cdn.eso.org/images/screen/uhd_yuri_alma_ant_cc.jpg
X-UA-CompatibleIE=edge
charsetutf-8

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Die Nutzung des Basis Accounts ist zeitlich unbegrenzt möglich

Seitenqualität

Inhalt
(Extrem wichtig)
Die durchschnittliche Satzlänge ist mit 28.06 Wörtern hoch.
Der Inhalt ist mit 2298 Wörtern in Ordnung.
Der Text besteht zu 27.1% aus Füllwörtern.
Im Text befindet sich eine Aufzählung, dies deutet auf eine gute Textstruktur hin.
Es wurden 11 Fließtextblöcke auf der Seite gefunden.
Der Text auf der Seite ist optimal.
Es wurden keine Platzhalter Texte bzw. Bilder gefunden.
Es befinden sich keine Duplikate auf der Seite.
Frames
(Extrem wichtig)
Die Seite hat kein Frameset.
Mobile
(Wenig wichtig)
Es ist kein Apple-Touch Icon angegeben.
Der angegebene Viewport (width=device-width, initial-scale=1) ist korrekt.
Die Webseite benötigt nur wenige JavaScript Dateien (3).
Bold- und Strongtags
(Wenig wichtig)
Die Nutzung von Strong- und Bold-Tags ist optimal. Wir empfehlen für diese Webseite die Verwendung von bis zu 46 Tags.
Bilder Optimierung
(Wenig wichtig)
Bei 2 Bildern fehlt das Alt-Attribut. Der Inhalt von Alt-Attributen wird von Suchmaschinen auch als Text gewertet und ist wichtig für die Bildersuche.
Soziale Vernetzung
(Nice to have)
Die Seite ist optimal auf Soziale Netzwerke ausgerichtet.
Zusätzliches Markup
(Nice to have)
Es wurde kein zusätzliches Markup gefunden.
HTTPS
(Wenig wichtig)
Die Seite verwendet HTTPS um Daten sicher zu übertragen.
Alle eingebundenen Dateien werden ebenfalls über HTTPS ausgeliefert.

Medienliste

URLALT-AttributeTitel
...n.eso.org/videos/videoframe/eso2411a.jpgSharpest ground observations ever | ESO Chasing Starlight
...s/videoframe/eltu-m1-cell-progress-a.jpgWorld’s largest mirror support installed | ELT Updates
...dn.eso.org/images/thumb350x/eso2411a.jpgIllustration of the highest-resolution detections ever made from the surface of Earth
...dn.eso.org/images/small169/potw2435a.jpgHunting sunsets and exoplanets
...nce-fiction-cover-forward-futuristic.jpgBanner for the blog post "The very best of sci-fi"
/public/archives/static/frontpage/elt.jpgThe World’s Biggest Eye on the Sky
/public/archives/static/frontpage/alma.jpgIn search of our Cosmic Origins
/public/archives/static/frontpage/vlt.jpgThe world’s most advanced visible-light astronomical observatory
...ic/archives/static/frontpage/lasilla.jpgESO’s first observatory
...mb350x/2018_04_17_es_moon-venus_4-cc.jpgKein ALT-Attribut angegeben
...org/images/thumb350x/eso50_obs_compo.jpgKein ALT-Attribut angegeben

Seitenstruktur

H1 Überschrift
(Extrem wichtig)
Our Stories
Die H1-Überschrift ist zu kurz (11 Zeichen). Sie sollte mindestens 20 Zeichen lang sein.
Überschriften
(Wichtig)
Die Überschriftenstruktur ist fehlerfrei.

Überschriftenstruktur

Überschriften HierarchieInhalt
H1 Our Stories
H1 Our Telescopes
H1 Visit Us
Es befinden sich zu viele interne Links (599) auf der Seite.
Einige der Linktexte der internen Links sind zu lang.
Die internen Links haben teilweise dynamische Parameter. Alle internen URLs, welche nicht als nofollow markiert sind, sollten keine dynamischen Parameter aufweisen.
Einige der Linktexte wiederholen sich.
Es befinden sich 23 externe Links auf der Seite.
LinkAttributeLinktext
/public/about-eso/privacy/our privacy policy
https://www.eso.org/public/Kein Text
https://www.eso.org/public/?langInternational English
/public/denmark/?langDansk
/public/germany/?langDeutsch
/public/belgium-de/?langDeutsch (Belgien)
/public/switzerland-de/?langDeutsch (Schweiz)
/public/austria/?langDeutsch (Österreich)
/public/australia/?langEnglish (Australia)
/public/ireland/?langEnglish (Ireland)
/public/unitedkingdom/?langEnglish (UK)
/public/spain/?langEspañol
/public/chile/?langEspañol (Chile)
/public/france/?langFrançais
/public/belgium-fr/?langFrançais (Belgique)
/public/switzerland-fr/?langFrançais (Suisse)
/public/italy/?langItaliano
/public/switzerland-it/?langItaliano (Svizzera)
/public/netherlands/?langNederlands
/public/belgium-nl/?langNederlands (België)
/public/poland/?langPolski
/public/portugal/?langPortuguês
/public/finland/?langSuomi
/public/sweden/?langSvenska
/public/czechrepublic/?langČesky
https://www.eso.org/sci.htmlSubdomain Science
https://www.eso.org/UserPortal/User Portal
/public/outreach/newsletters/e...Subscribe
/public/about-eso/travel/Contact
/public/sitemap/Site Map
/public/about-eso/About
/public/about-eso/esoglance/ESO, the European Southern Observatory
/public/about-eso/organisation/Organisation
/public/about-eso/mission-visi...Mission-Vision-Values-Strategy
/public/about-eso/dg-office/Director General
/public/about-eso/dg-office/pr...List of Directors General
/public/about-eso/dg-office/xb...Prof. Xavier Barcons
/public/about-eso/dg-office/td...Prof. T. de Zeeuw
/public/about-eso/dg-office/cc...Dr. C. Cesarsky
/public/about-eso/dg-office/rg...Prof. R. Giacconi
/public/about-eso/dg-office/hv...Prof. H. van der Laan
/public/about-eso/dg-office/lw...Prof. L. Woltjer
/public/about-eso/dg-office/ab...Prof. A. Blaauw
/public/about-eso/dg-office/ot...Prof. O. Heckmann
/public/about-eso/committees.htmlESO's Governing Bodies
/public/about-eso/memberstates/Member States and Partners
/public/about-eso/memberstates...Austria
/public/about-eso/memberstates...Belgium
/public/about-eso/memberstates...Czechia
/public/about-eso/memberstates...Denmark
/public/about-eso/memberstates...Finland
/public/about-eso/memberstates...France
/public/about-eso/memberstates...Germany
/public/about-eso/memberstates...Ireland
/public/about-eso/memberstates...Italy
/public/about-eso/memberstates...Netherlands
/public/about-eso/memberstates...Poland
/public/about-eso/memberstates...Portugal
/public/about-eso/memberstates...Spain
/public/about-eso/memberstates...Sweden
/public/about-eso/memberstates...Switzerland
/public/about-eso/memberstates...United Kingdom
/public/about-eso/strategicpar...Australia (Partner)
/public/about-eso/eso-and-chile/ESO & Chile
/public/about-eso/eso-and-chil...ESO Representation Office in Chile
/public/about-eso/travel/Travel and Contacts
/public/about-eso/travel/garch...Travel to ESO Headquarters
/public/about-eso/travel/vitac...Travel to Vitacura Office
/public/about-eso/travel/guest...Travel to Guesthouse
/public/about-eso/travel/lasilla/Travel to La Silla
/public/about-eso/travel/laser...Travel to La Serena
/public/about-eso/travel/paranal/Travel to Paranal
/public/about-eso/travel/antof...Travel to Antofagasta
/public/about-eso/travel/chajn...Travel to Chajnantor
/public/about-eso/travel/elt/Travel to ELT Armazones
/public/about-eso/visitors/Visits to ESO Sites
/public/about-eso/visitors/par...Weekend visits to Paranal
/public/about-eso/visitors/las...Weekend Visits to La Silla
/public/outreach/pressmedia/me...Media Visits
/public/about-eso/visitors/vir...Virtual Visits
/public/about-eso/visitors/art...Artistic Visits
/public/about-eso/societal-ben...ESO and Society
/public/about-eso/architecture/Architecture at ESO
/public/about-eso/collaborations/Collaborations with ESO
/public/about-eso/acronyms/ESO Acronyms
/public/about-eso/timeline/Timeline
/public/about-eso/sustainabili...Environmental sustainability at ESO
/public/about-eso/sustainabili...ESO and the UN's Sustainable Development Goals
/public/about-eso/sustainabili...Diversity, Equity and Inclusion
/public/about-eso/faq/Frequently Asked Questions
/public/about-eso/faq/faq-eso/ESO
/public/about-eso/faq/faq-vlt-...VLT/Paranal
/public/about-eso/faq/faq-apex...APEX/ALMA
https://elt.eso.org/about/faq/Extern Subdomain ELT
/public/about-eso/faq/privileg...Privileges and Immunities
/public/about-eso/faq/faq-eso-...ESO & Australia
/public/about-eso/dark-skies-p...Dark skies preservation
/public/about-eso/privacy/Terms and Conditions
/public/images/Images
/public/images/search/Advanced Search
/public/images/archive/categor...360 Panorama
/public/images/archive/categor...ALMA
/public/images/archive/categor...APEX
/public/images/archive/categor...Chile
/public/images/archive/categor...Cosmology
/public/images/archive/categor...Textduplikat ELT
/public/images/archive/categor...ESO Supernova
/public/images/archive/categor...Exoplanets
/public/images/archive/categor...Fulldome
/public/images/archive/categor...Galaxies
/public/images/archive/categor...Galaxy Clusters
/public/images/archive/categor...Illustrations
/public/images/archive/categor...La Silla
/public/images/archive/categor...Nebulae
/public/images/archive/categor...Paranal
/public/images/archive/categor...People and Events
/public/images/archive/categor...Premises
/public/images/archive/categor...Quasars and Black Holes
/public/images/archive/categor...Solar System
/public/images/archive/categor...Star Clusters
/public/images/archive/categor...Stars
/public/images/archive/categor...Survey Telescopes
/public/images/comparisons/Image Comparisons
/public/images/imageformats/Image Formats
/public/images/potw/Picture of the Week
/public/images/potw/archive/ye...2024
/public/images/potw/archive/ye...2023
/public/images/potw/archive/ye...2022
/public/images/potw/archive/ye...2021
/public/images/potw/archive/ye...2020
/public/images/potw/archive/ye...2019
/public/images/potw/archive/ye...2018
/public/images/potw/archive/ye...2017
/public/images/potw/archive/ye...2016
/public/images/potw/archive/ye...2015
/public/images/potw/archive/ye...2014
/public/images/potw/archive/ye...2013
/public/images/potw/archive/ye...2012
/public/images/potw/archive/ye...2011
/public/images/potw/archive/ye...2010
/public/images/potw/archive/ye...2009
/public/images/potw/archive/ye...2008
/public/images/potw/archive/ye...2007
/public/images/archive/top100/Top 100
https://cdn.eso.org/images/top...Extern Subdomain Large JPG Zip File (3.5 GB)
https://cdn.eso.org/images/top...Extern Subdomain Original TIF Zip File (50 GB)
/public/copyright/Usage of ESO Images and Videos
/public/images/archive/wallpap...Wallpapers
/public/images/archive/zoomable/Zoomable
/public/videos/Videos
/public/videos/search/Textduplikat Advanced Search
/public/videos/archive/categor...About ESO
/public/videos/archive/categor...Textduplikat ALMA
/public/videos/archive/categor...Textduplikat APEX
/public/videos/archive/categor...Chasing Starlight
/public/videos/archive/categor...Compilations
/public/videos/archive/categor...Textduplikat Cosmology
/public/videos/archive/categor...Textduplikat ELT
/public/videos/archive/categor...ESOcast
/public/videos/archive/categor...Events
/public/videos/archive/categor...Textduplikat Exoplanets
/public/videos/archive/categor...Feature Movies
/public/videos/archive/categor...Textduplikat Fulldome
/public/videos/archive/categor...Textduplikat Galaxies
/public/videos/archive/categor...Textduplikat Galaxy Clusters
/public/videos/archive/categor...Textduplikat La Silla
/public/videos/archive/categor...Textduplikat Nebulae
/public/videos/archive/categor...Textduplikat Paranal
/public/videos/archive/categor...Textduplikat Premises
/public/videos/archive/categor...Textduplikat Quasars and Black Holes
/public/videos/archive/categor...Textduplikat Solar System
/public/videos/archive/categor...Textduplikat Star Clusters
/public/videos/archive/categor...Textduplikat Stars
/public/videos/archive/categor...Video News Releases
/public/copyright/Usage of ESO Videos and Images
/public/videoformats/Video Formats
https://www.eso.org/public/news/News
https://www.eso.org/public/news/Press Releases
/public/news/archive/year/2024/Textduplikat 2024
/public/news/archive/year/2023/Textduplikat 2023
/public/news/archive/year/2022/Textduplikat 2022
/public/news/archive/year/2021/Textduplikat 2021
/public/news/archive/year/2020/Textduplikat 2020
/public/news/archive/year/2019/Textduplikat 2019
/public/news/archive/year/2018/Textduplikat 2018
/public/news/archive/year/2017/Textduplikat 2017
/public/news/archive/year/2016/Textduplikat 2016
/public/news/archive/year/2015/Textduplikat 2015
/public/news/archive/year/2014/Textduplikat 2014
/public/news/archive/year/2013/Textduplikat 2013
/public/news/archive/year/2012/Textduplikat 2012
/public/news/archive/year/2011/Textduplikat 2011
/public/news/archive/year/2010/Textduplikat 2010
/public/news/archive/year/2009/Textduplikat 2009
/public/news/archive/year/2008/Textduplikat 2008
/public/news/archive/year/2007/Textduplikat 2007
/public/news/archive/year/2006/2006
/public/news/archive/year/2005/2005
/public/news/archive/year/2004/2004
/public/news/archive/year/2003/2003
/public/news/archive/year/2002/2002
/public/news/archive/year/2001/2001
/public/news/archive/year/2000/2000
/public/news/archive/year/1999/1999
/public/news/archive/year/1998/1998
/public/news/archive/year/1997/1997
/public/news/archive/year/1996/1996
/public/news/archive/year/1995/1995
/public/news/archive/year/1994/1994
/public/news/archive/year/1993/1993
/public/news/archive/year/1992/1992
/public/news/archive/year/1991/1991
/public/news/archive/year/1990/1990
/public/news/archive/year/1989/1989
/public/news/archive/year/1988/1988
/public/news/archive/year/1987/1987
/public/news/archive/year/1986/1986
/public/news/archive/year/1985/1985
/public/announcements/Announcements
/public/announcements/archive/...Textduplikat 2024
/public/announcements/archive/...Textduplikat 2023
/public/announcements/archive/...Textduplikat 2022
/public/announcements/archive/...Textduplikat 2021
/public/announcements/archive/...Textduplikat 2020
/public/announcements/archive/...Textduplikat 2019
/public/announcements/archive/...Textduplikat 2018
/public/announcements/archive/...Textduplikat 2017
/public/announcements/archive/...Textduplikat 2016
/public/announcements/archive/...Textduplikat 2015
/public/announcements/archive/...Textduplikat 2014
/public/announcements/archive/...Textduplikat 2013
/public/announcements/archive/...Textduplikat 2012
/public/announcements/archive/...Textduplikat 2011
/public/announcements/archive/...Textduplikat 2010
/public/announcements/archive/...Textduplikat 2009
https://www.eso.org/public/blog/Subdomain ESOblog
/public/announcements/webupdates/New on eso.org
/public/outreach/pressmedia/Press Room
/public/outreach/broadcast/Broadcast Services
/public/outreach/pressmedia/me...Textduplikat Media Visits
/public/copyright/Copyright Notice
/public/newsletters/ESO Newsletters
/public/newsletters/esonews/ESO News
/sci/publications/newsletter/ESO Science Newsletter
/public/outreach/newsletters/ESO Media Newsletter
/public/news/pitch-your-research/Pitch your Research
https://www.eso.org/public/shop/ESOshop
/public/shop/category/Shop Products
/public/shop/category/annualre...Annual Reports
/public/shop/category/apparel/Apparel
/public/shop/category/book/Books
/public/shop/category/brochure/Brochures
/public/shop/category/calendar/Calendars
/public/shop/category/capjournal/CAPjournals
/public/shop/category/conferen...Conferences
/public/shop/category/donation/Donations
/public/shop/category/media/DVDs/Bluray/CDs
/public/shop/category/educatio...Educational Material
/public/shop/category/supernov...ESO Supernova Activities
/public/shop/category/flyer/Flyers
/public/shop/category/handout/Handouts
/public/shop/category/map/Maps
/public/shop/category/merchand...Merchandise
/public/shop/category/messenger/Messengers
/public/shop/category/mountedi...Mounted Images
/public/shop/category/postcard/Postcards
/public/shop/category/printedp...Posters
/public/shop/category/technica...Reports
/public/shop/category/sticker/Stickers
/public/shop/cart/View shopping cart
/public/shop/checkout/Checkout
/public/shopinfo/Information
/public/shopinfo/bulk_orders/Bulk Orders
/public/shopinfo/Purchasing Steps
/public/shopinfo/payment/Payment
/public/shopinfo/shipping/Shipping
/public/shopinfo/shopstaff/Staff Shopping
/public/shopinfo/terms/Terms & Conditions
/public/shop/freeorder/Free Orders for Educators and Media
/public/teles-instr/Telescopes & Instruments
/public/teles-instr/paranal-ob...Paranal Observatory
/public/teles-instr/paranal-ob...Very Large Telescope
/public/teles-instr/paranal-ob...VLT Instruments
/public/teles-instr/paranal-ob...4LGSF
/public/teles-instr/paranal-ob...CUBES
/public/teles-instr/paranal-ob...CRIRES
/public/teles-instr/paranal-ob...CRIRES+
/public/teles-instr/paranal-ob...ESPRESSO
/public/teles-instr/paranal-ob...ERIS
/public/teles-instr/paranal-ob...FLAMES
/public/teles-instr/paranal-ob...FORS1 and FORS2
/public/teles-instr/paranal-ob...HAWK-I
/public/teles-instr/paranal-ob...ISAAC
/public/teles-instr/paranal-ob...KMOS
/public/teles-instr/paranal-ob...MAD
/public/teles-instr/paranal-ob...MAVIS
/public/teles-instr/paranal-ob...MOONS
/public/teles-instr/paranal-ob...MUSE
/public/teles-instr/paranal-ob...NACO
/public/teles-instr/paranal-ob...SINFONI
/public/teles-instr/paranal-ob...SPHERE
/public/teles-instr/paranal-ob...UVES
/public/teles-instr/paranal-ob...VIMOS
/public/teles-instr/paranal-ob...VLT Test Cameras
/public/teles-instr/paranal-ob...VISIR
/public/teles-instr/paranal-ob...X-shooter
/public/teles-instr/paranal-ob...VLT Unit Telescopes Names
/public/teles-instr/paranal-ob...Antu
/public/teles-instr/paranal-ob...Kueyen
/public/teles-instr/paranal-ob...Melipal
/public/teles-instr/paranal-ob...Yepun
/public/teles-instr/paranal-ob...VLT Interferometer
/public/teles-instr/paranal-ob...GRAVITY+
/public/teles-instr/paranal-ob...GRAVITY
/public/teles-instr/paranal-ob...MATISSE
/public/teles-instr/paranal-ob...NAOMI
/public/teles-instr/paranal-ob...PIONIER
/public/teles-instr/paranal-ob...AMBER
/public/teles-instr/paranal-ob...MIDI
/public/teles-instr/paranal-ob...VINCI
/public/teles-instr/paranal-ob...Auxiliary Telescopes
/public/teles-instr/paranal-ob...Textduplikat Survey Telescopes
/public/teles-instr/paranal-ob...VISTA
/public/teles-instr/paranal-ob...The VISTA mirror
/public/teles-instr/paranal-ob...VIRCAM
/public/teles-instr/paranal-ob...4MOST
/public/teles-instr/paranal-ob...The VISTA surveys
/public/teles-instr/paranal-ob...The VISTA consortium
/public/teles-instr/paranal-ob...VST
/public/teles-instr/paranal-ob...The VST mirrors
/public/teles-instr/paranal-ob...OmegaCAM
/public/teles-instr/paranal-ob...The VST surveys
/public/teles-instr/paranal-ob...SPECULOOS
/public/teles-instr/paranal-ob...NGTS
/public/teles-instr/paranal-ob...Cherenkov Telescope Array Observatory
/public/teles-instr/lasilla/La Silla Observatory
/public/teles-instr/lasilla/sw...Swedish–ESO Submillimetre Telescope
/public/teles-instr/lasilla/sw...SIMBA
/public/teles-instr/lasilla/ntt/New Technology Telescope
/public/teles-instr/lasilla/nt...EFOSC2
/public/teles-instr/lasilla/nt...EMMI
/public/teles-instr/lasilla/nt...IRSPEC
/public/teles-instr/lasilla/nt...SOFI
/public/teles-instr/lasilla/nt...SOXS
/public/teles-instr/lasilla/nt...SUSI and SUSI2
/public/teles-instr/lasilla/36/ESO 3.6-metre telescope
/public/teles-instr/lasilla/36...ADONIS
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