Evaluation du site eso.int
ESO
Généré le 13 Décembre 2025 11:30
Vieilles statistiques? UPDATE !
Le score est de 56/100
Optimisation du contenu
Titre
ESO
Longueur : 3
Idéalement, votre titre devrait contenir entre 10 et 70 caractères (espaces compris). Utilisez cet outil gratuit pour calculer la longueur du texte.
Description
ESO, European Organisation for Astronomical Research in the Southern Hemisphere
Longueur : 79
Génial, votre balise META description contient entre 70 et 160 caractères.
Mots-clefs
ESO, eso.org, Astronomy, Astrophysics, Astronomie, Suedsternwarte, telescopes, detectors, comets, planets, stars, galaxies, nebulae, universe, NTT, VLT, VLTI, ALMA, ELT, La Silla, Paranal, Garching, Chile
Bien, votre page contient une balise META keywords.
Propriétés Open Graph
Bien, cette page profite des balises META Open Graph.
| Propriété | Contenu |
|---|---|
| title | ESO — The European Southern Observatory |
| description | Welcome to the most powerful astronomical observatories in the world. |
| image | https://cdn.eso.org/images/screen/uhd_yuri_alma_ant_cc.jpg |
| image:secure_url | https://cdn.eso.org/images/screen/uhd_yuri_alma_ant_cc.jpg |
Niveaux de titre
| H1 | H2 | H3 | H4 | H5 | H6 |
| 5 | 5 | 0 | 0 | 0 | 0 |
- [H1] Our Stories
- [H1] Our Telescopes
- [H1] Visit Us
- [H1] Our use of Cookies
- [H1] ESO Cookies Policy
- [H2] What are cookies?
- [H2] Categories of cookies we use
- [H2] How to manage cookies
- [H2] Updates to the ESO Cookies Policy
- [H2] Additional information
Images
Nous avons trouvé 25 image(s) sur cette page Web.
2 attribut(s) alt sont vides ou manquants. Ajouter un texte alternatif permet aux moteurs de recherche de mieux comprendre le contenu de vos images.
Ratio texte/HTML
Ratio : 15%
Bien, le ratio de cette page texte/HTML est supérieur à 15, mais inférieur à 25 pour cent.
Flash
Parfait, aucun contenu FLASH n'a été détecté sur cette page.
Iframe
Génial, il n'y a pas d'Iframes détectés sur cette page.
Liens
Réécriture d'URLs
Bien. Vos liens sont optimisés!
Tiret bas dans les URLs
Nous avons détectés des soulignements dans vos URLs. Vous devriez plutôt utiliser des tirets pour optimiser votre référencement.
Liens dans la page
Nous avons trouvé un total de 307 lien(s) dont 1 lien(s) vers des fichiers
| Texte d'ancre | Type | Juice |
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| Science | Externe | Passing Juice |
| User Portal | Interne | Passing Juice |
| Subscribe | Interne | Passing Juice |
| Contact | Interne | Passing Juice |
| Site Map | Interne | Passing Juice |
| Organisation | Interne | Passing Juice |
| Mission-Vision-Values-Strategy | Interne | Passing Juice |
| Director General | Interne | Passing Juice |
| ESO's Governing Bodies | Interne | Passing Juice |
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| Australia (Partner) | Interne | Passing Juice |
| ESO Representation Office in Chile | Interne | Passing Juice |
| Travel to ESO Headquarters | Interne | Passing Juice |
| Travel to Vitacura Office | Interne | Passing Juice |
| Travel to Guesthouse | Interne | Passing Juice |
| Travel to La Silla | Interne | Passing Juice |
| Travel to La Serena | Interne | Passing Juice |
| Travel to Paranal | Interne | Passing Juice |
| Travel to Antofagasta | Interne | Passing Juice |
| Travel to Chajnantor | Interne | Passing Juice |
| Travel to ELT Armazones | Interne | Passing Juice |
| Weekend visits to Paranal | Interne | Passing Juice |
| Weekend Visits to La Silla | Interne | Passing Juice |
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| Swedish–ESO Submillimetre Telescope | Interne | Passing Juice |
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| Télescope à Action Rapide pour les Objets Transitoires | Interne | Passing Juice |
| ESO 1-metre Schmidt telescope | Interne | Passing Juice |
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| MarLy 1-metre telescope | Interne | Passing Juice |
| Dutch 0.9-metre telescope | Interne | Passing Juice |
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| Bochum 0.61-metre telescope | Interne | Passing Juice |
| Danish 0.5-metre telescope | Interne | Passing Juice |
| Grand Prisme Objectif telescope | Interne | Passing Juice |
| Swiss 0.4-metre telescope | Interne | Passing Juice |
| Marseille 0.36-metre telescope | Interne | Passing Juice |
| GRB Monitoring System | Interne | Passing Juice |
| MASCARA | Interne | Passing Juice |
| BlackGEM | Interne | Passing Juice |
| ExTrA | Interne | Passing Juice |
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| First image of a black hole | Externe | Passing Juice |
| First image of the Milky Way central black hole | Externe | Passing Juice |
| More about the black hole at the galactic centre | Externe | Passing Juice |
| Gamma-Ray Bursts | Interne | Passing Juice |
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| Accelerated by CDN77 | Externe | Passing Juice |
| YouTube | Externe | Passing Juice |
| ESO’s official YouTube channel | Externe | Passing Juice |
| embedding videos information page | Externe | Passing Juice |
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Mots-clefs
Nuage de mots-clefs
new vlt esos telescope press first astronomers travel large eso
Cohérence des mots-clefs
| Mot-clef | Contenu | Titre | Mots-clefs | Description | Niveaux de titre |
|---|---|---|---|---|---|
| telescope | 30 |  |
 |
|
|
| eso | 29 | |
|
|
|
| press | 10 | |
|
|
|
| travel | 10 | |
|
|
|
| vlt | 8 | |
|
|
|
Ergonomie
Url
Domaine : eso.int
Longueur : 7
Favicon
Génial, votre site web dispose d'un favicon.
Imprimabilité
Aucun style CSS pour optimiser l'impression n'a pu être trouvé.
Langue
Bien. Votre langue est : en.
Dublin Core
Cette page ne profite pas des métadonnées Dublin Core.
Document
Doctype
HTML 5
Encodage
Parfait. Votre charset est UTF-8.
Validité W3C
Erreurs : 0
Avertissements : 0
E-mail confidentialité
Attention! Au moins une adresse e-mail a été trouvée en texte clair. Utilisez une protection anti-spam gratuite pour cacher vos e-mails aux spammeurs.
HTML obsolètes
Génial! Nous n'avons pas trouvé de balises HTML obsolètes dans votre code.
Astuces vitesse
|
Excellent, votre site n'utilise pas de tableaux imbriqués. |
|
Mauvais, votre site web utilise des styles css inline. |
|
Génial, votre site web contient peu de fichiers CSS. |
|
Parfait, votre site web contient peu de fichiers javascript. |
|
Dommage, votre site n'est pas optimisé avec gzip. |
Mobile
Optimisation mobile
|
Icône Apple |
|
Méta tags viewport |
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Contenu FLASH |
Optimisation
Sitemap XML
Manquant
Votre site web ne dispose pas d’une sitemap XML, ce qui peut poser problème.
La sitemap recense les URLs que les moteurs de recherche peuvent indexer, tout en proposant d’éventuelles informations supplémentaires (comme la date de dernière mise à jour, la fréquence des changements, ainsi que leur niveau d’importance). Ceci permet aux moteurs de recherche de parcourir le site de façon plus efficace.
Robots.txt
https://eso.int/robots.txt
Votre site dispose d’un fichier robots.txt, ce qui est optimal.
Mesures d'audience
Manquant
Nous n'avons trouvé aucun outil d'analytics sur ce site.
Un outil de mesure d'audience vous permet d'analyser l’activité des visiteurs sur votre site. Vous devriez installer au moins un outil Analytics. Il est souvent utile d’en rajouter un second, afin de confirmer les résultats du premier.
PageSpeed Insights
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