Esa.int - SEO Checker

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Overview of the SEO Check
Meta information
77% 
Page quality
87% 
Page structure
58% 
Link structure
81% 
Server
100% 
External factors
100% 
SEO Score
Response time
0.11 s
File size
53.50 kB
Words
802
Media files
91
Number of links
61 internal / 15 external

Task list of SEO Improvements

Meta specifications

Title
(Critically important)
European Space Agency
The length of the page title is perfect. (224 pixels out of 580 max pixel length)
There are no duplicate words in the title
Meta description
(Critically important)
The European Space Agency portal features the latest news in space exploration, human spaceflight, launchers, telecommunications, navigation, monitoring and space science.
The meta description is too long: 1085 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)
No favicon is linked in the HTML code.

Meta tags

NameValue
viewportwidth=device-width, user-scalable=no, initial-scale=1.0, minimum-scale=1.0, maximum-scale=1.0
facebook-domain-verificationhuxggdjw6qgb4kjoxa3s1ixopprlpf
descriptionThe European Space Agency portal features the latest news in space exploration, human spaceflight, launchers, telecommunications, navigation, monitoring and space science.
keywordsEuropean Space Agency, Moon, Mars, sun, space exploration, probes, missions, satellites, launchers, international space station, ISS, telecommunications, earth observation, navigation, astronauts, solar system, universe, remote sensing, space news, ESA, environment, monitoring, astronomy, Ariane, rocket, Galileo, comet, education, Venus
langen
og:titleEuropean Space Agency
og:descriptionThe European Space Agency portal features the latest news in space exploration, human spaceflight, launchers, telecommunications, navigation, monitoring and space science.
X-UA-CompatibleIE=edge
charsetutf-8

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Page quality

Content
(Critically important)
This page contains 802 words. That's ok.
18.1% 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.
4 paragraphs were found on this page.
The text content is perfect.
No placeholders texts or images were found.
There are no duplicates on the site.
The average number of words per sentence of 13.5 words is good.
Frames
(Critically important)
This page does not use a frameset.
Mobile optimization
(Somewhat important)
No Apple touch icon is specified.
A viewport "width=device-width, user-scalable=no, initial-scale=1.0, minimum-scale=1.0, maximum-scale=1.0" is provided.
Bold and strong tags
(Somewhat important)
The usage of strong and bold tags is perfect. We recommend the use of up to 16 tags for this page.
Image SEO
(Somewhat important)
16 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
...llars/design/pillars/images/ESA_Menu.svgESA menu toggle
...ars/design/pillars/images/ESA_Search.svgESA search toggle
...lars/design/pillars/images/ESA_Title.svgESA title
...llars/design/pillars/images/ESA_Logo.svgESA logo
.../pillars/design/pillars/images/arrow.svgOpen item
...Netherlands_from_Sentinel-1C_pillars.jpgThe Netherlands from Sentinel-1C
.../pillars/design/pillars/images/arrow.svgOpen item
...ight_observations_of_Mercury_pillars.pngFirst mid-infrared light observations of Mercury
.../pillars/design/pillars/images/arrow.svgOpen item
...om_Space_First_seasonal_snow_pillars.jpgThis Copernicus Sentinel-2 image from 21 November 2024 captures the first snow of the season over Denmark and southern Sweden.
.../pillars/design/pillars/images/arrow.svgOpen item
...4-3-eng-GB/Discover_ESA_Live_pillars.pngNo alt attribute provided
...he_European_Space_Agency_card_medium.pngFive reasons to join the European Space Agency
.../pillars/design/pillars/images/arrow.svgRead
..._MACS_J1423_NIRCam_image_card_medium.jpgGalaxy cluster MACS J1423 (NIRCam image)
.../pillars/design/pillars/images/arrow.svgRead
...rs/design/pillars/images/play-button.svgPlay
...eng-GB/Paxi_explores_ice_card_medium.jpgNo alt attribute provided
...rs/design/pillars/images/arrow-white.svgPlay
...Generating_3D_cloud_maps_card_medium.gifGenerating 3D cloud maps
.../pillars/design/pillars/images/arrow.svgRead
...esign_chamber_made_in_LEGO_card_full.jpgSpace design chamber made in LEGO
...rs/design/pillars/images/arrow-white.svgView
...appy_Birthday_XMM-Newton_card_medium.jpgNo alt attribute provided
.../pillars/design/pillars/images/arrow.svgRead
...trations_near_Cheltenham_card_medium.gifMethane concentrations near Cheltenham
.../pillars/design/pillars/images/arrow.svgRead
...lite_on_its_way_to_orbit_card_medium.jpgSentinel-1C radar satellite on its way to orbit
.../pillars/design/pillars/images/arrow.svgOpen
...rs/design/pillars/images/play-button.svgPlay
...nel-1C_launch_highlights_card_medium.pngNo alt attribute provided
...rs/design/pillars/images/arrow-white.svgPlay
.../pillars/design/pillars/images/arrow.svgOpen item
...ne_6_first_flight_highlights_pillars.jpgNo alt attribute provided
...53-1-eng-GB/Our_missions_card_medium.jpgNo alt attribute provided
.../pillars/design/pillars/images/arrow.svgOpen
.../DiscoverESA_cover_image_card_medium.pngNo alt attribute provided
.../pillars/design/pillars/images/arrow.svgOpen
...855-1-eng-GB/This_is_ESA_card_medium.jpgNo alt attribute provided
.../pillars/design/pillars/images/arrow.svgOpen
.../ESA_blog_navigator_link_card_medium.jpgESA blog navigator link
.../pillars/design/pillars/images/arrow.svgOpen
...-eng-GB/ESA_brand_centre_card_medium.jpgNo alt attribute provided
.../pillars/design/pillars/images/arrow.svgOpen
.../pillars/design/pillars/images/arrow.svgOpen item
...view_of_the_Horsehead_Nebula_pillars.jpgEuclid’s view of the Horsehead Nebula
...trations_near_Cheltenham_card_medium.gifMethane concentrations near Cheltenham
.../pillars/design/pillars/images/arrow.svgRead
..._observations_of_Mercury_card_medium.pngFirst mid-infrared light observations of Mercury
.../pillars/design/pillars/images/arrow.svgRead
...erlands_from_Sentinel-1C_card_medium.jpgThe Netherlands from Sentinel-1C
.../pillars/design/pillars/images/arrow.svgRead
...esign_chamber_made_in_LEGO_card_full.jpgSpace design chamber made in LEGO
...rs/design/pillars/images/arrow-white.svgView
..._MACS_J1423_NIRCam_image_card_medium.jpgGalaxy cluster MACS J1423 (NIRCam image)
.../pillars/design/pillars/images/arrow.svgRead
...ions_in_the_Southern_Sky_card_medium.jpgMosaic of Euclid observations in the Southern Sky
.../pillars/design/pillars/images/arrow.svgRead
...rs/design/pillars/images/play-button.svgPlay
...eng-GB/Paxi_explores_ice_card_medium.jpgNo alt attribute provided
...rs/design/pillars/images/arrow-white.svgPlay
...rs/design/pillars/images/play-button.svgPlay
...nel-1C_launch_highlights_card_medium.pngNo alt attribute provided
...rs/design/pillars/images/arrow-white.svgPlay
...rs/design/pillars/images/play-button.svgPlay
...3_launch_campaign_replay_card_medium.pngNo alt attribute provided
...rs/design/pillars/images/arrow-white.svgPlay
...rs/design/pillars/images/play-button.svgPlay
...he_Sun_Proba-3_explained_card_medium.pngNo alt attribute provided
...rs/design/pillars/images/arrow-white.svgPlay
...rs/design/pillars/images/play-button.svgPlay
...name_and_patch_explained_card_medium.pngNo alt attribute provided
...rs/design/pillars/images/arrow-white.svgPlay
...1093729-4-eng-GB/Careers_card_medium.jpgNo alt attribute provided
.../pillars/design/pillars/images/arrow.svgOpen
...eng-GB/Business_with_ESA_card_medium.jpgNo alt attribute provided
.../pillars/design/pillars/images/arrow.svgOpen
...pace_Innovation_Platform_card_medium.jpgOpen Space Innovation Platform
.../pillars/design/pillars/images/arrow.svgOpen
...ommercialisation_Gateway_card_medium.gifESA Commercialisation Gateway
.../pillars/design/pillars/images/arrow.svgOpen
...esign_chamber_made_in_LEGO_card_full.jpgSpace design chamber made in LEGO
...rs/design/pillars/images/arrow-white.svgView
..._Space_First_seasonal_snow_card_full.jpgThis Copernicus Sentinel-2 image from 21 November 2024 captures the first snow of the season over Denmark and southern Sweden.
...rs/design/pillars/images/arrow-white.svgView
...ombo_s_fifth_Mercury_flyby_card_full.jpgBepiColombo's fifth Mercury flyby
...rs/design/pillars/images/arrow-white.svgView
...cultural_patchwork_Romania_card_full.jpgA colourful patchwork of agricultural fields is pictured in this radar image captured by Copernicus Sentinel-1 over southeastern Romania.
...rs/design/pillars/images/arrow-white.svgView
...ng_spiral_arms_in_infrared_card_full.jpgWebb traces spiral arms in infrared
...rs/design/pillars/images/arrow-white.svgView

Page structure

H1 heading
(Critically important)
There is no H1 heading specified.
Headings
(Important)
Some headings occur twice on the page.
The structure of headings is missing one or more levels. Do not skip heading levels.
There are 53 headings on the page. The amount of headings should be in a more proper relation to the amount of text.

Heading structure

Heading levelContent
H2 In the spotlight
H2 Recommended
H2 Trending
H2 Featured videos
H2 More
H2 Featured images
H3 Sentinel-1C captures first radar images
H3 BepiColombo reveals Mercury in a new light
H3 Earth from Space: First seasonal snow
H3 Discover ESA Live: a gateway to ESA’s universe for schools
H3 Five reasons to join the European Space Agency!
H3 Webb finds primeval star-forming galaxy that is lightweight
H3 Paxi explores ice
H3 AI-powered satellite data reveals clouds in 3D
H3 Space design chamber made in LEGO
H3 XMM-Newton celebrates 25 years of breakthroughs
H3 UK methane leak spotted using satellites
H3 Week in images: 02-06 December 2024
H3 Vega-C and Sentinel-1C launch highlights
H3 More items
H3 Ariane 6 first flight highlights
H3 Our missions
H3 Discover ESA
H3 This is ESA
H3 ESA Blog Navigator
H3 ESA Brand Centre
H3 Euclid’s view of the Horsehead Nebula
H3 UK methane leak spotted using satellites Duplicate text
H3 BepiColombo reveals Mercury in a new light Duplicate text
H3 Sentinel-1C captures first radar images Duplicate text
H3 Space design chamber made in LEGO Duplicate text
H3 Webb finds primeval star-forming galaxy that is lightweight Duplicate text
H3 Zoom into the first page of ESA Euclid’s great cosmic atlas
H3 Paxi explores ice Duplicate text
H3 Vega-C and Sentinel-1C launch highlights Duplicate text
H3 Proba-3 launch campaign replay
H3 Creating artificial eclipses to study the Sun | Proba-3 exp…
H3 Ignis mission name and patch explained
H3 More items Duplicate text
H3 Careers at ESA
H3 Business with ESA
H3 Open Space Innovation Platform
H3 ESA Commercialisation Gateway
H3 Space design chamber made in LEGO Duplicate text
H3 Earth from Space: First seasonal snow Duplicate text
H3 BepiColombo's fifth Mercury flyby
H3 Earth from Space: Agricultural patchwork, Romania
H3 Webb traces swirling spiral arms in infrared
H3 More items Duplicate text
H4 ESA Vision
H4 ESA Pillars
H4 ESA Programmes
H4 ESA and You
Some internal link anchor texts are too long.
Some anchor texts are used more than once.
The number of internal links is ok.
All internal links are not using dynamic parameters.
There are 15 external links on this page.

Found links on this page

LinkAttributesAnchor text
https://www.esa.int/IMG-ALT ESA logo
/Applications/Observing_the_Ea...Read
IMG-ALT Open item
/Science_Exploration/Space_Sci...Text duplicate Read
IMG-ALT Open item
/ESA_Multimedia/Images/2024/12...View
IMG-ALT Open item
/About_Us/Exhibitions/Discover...Text duplicate Read
IMG-ALT Open item
https://vision.esa.int/New window External Subdomain Agenda 2025
https://esamultimedia.esa.int/...New window External Subdomain Advisory group report
https://vision.esa.int/categor...New window External Subdomain Accelerators
https://vision.esa.int/categor...New window External Subdomain Space Summit 2023
/Science_ExplorationSubdomain Science & Exploration
https://www.esa.int/Space_SafetySubdomain Space Safety
https://www.esa.int/ApplicationsSubdomain Applications
/Enabling_SupportSubdomain Enabling & Support
/Science_Exploration/Space_Sci...Space Science
/Science_Exploration/Human_and...Human and Robotic Exploration
/Applications/Observing_the_EarthObserving the Earth
/Applications/Connectivity_and...Connectivity
/Applications/Satellite_naviga...Satellite Navigation
/Enabling_Support/Space_Transp...Space Transportation
/Enabling_Support/Space_Engine...Technology
/Enabling_Support/OperationsOperations
/About_Us/Careers_at_ESACareers at ESA
/About_Us/Business_with_ESABusiness with ESA
https://www.esa.int/NewsroomESA for Media
https://www.esa.int/EducationEducation at ESA
/About_Us/Careers_at_ESA/Five_...Story Agency Five reasons to join the European Space Agency! 09/10/2024 19625 views 56 likes Read
IMG-ALT Five reasons to join the European Space Agency
/Science_Exploration/Space_Sci...Story Science & Exploration Webb finds primeval star-forming galaxy that is lightweight 11/12/2024 934 views 24 likes Read
IMG-ALT Galaxy cluster MACS J1423 (NIRCam image)
/ESA_Multimedia/Videos/2024/12...Video 00:04:04 Agency Paxi explores ice 11/12/2024 230 views 7 likes Play
IMG-ALT Play
/Applications/Observing_the_Ea...Story Applications AI-powered satellite data reveals clouds in 3D 11/12/2024 714 views 21 likes Read
IMG-ALT Generating 3D cloud maps
/ESA_Multimedia/Images/2024/12...Image Enabling & Support Space design chamber made in LEGO 10/12/2024 1367 views 27 likes View
IMG-ALT Space design chamber made in LEGO
/Science_Exploration/Space_Sci...Story Science & Exploration XMM-Newton celebrates 25 years of breakthroughs 10/12/2024 1325 views 47 likes Read
IMG-ALT Read
/Applications/Observing_the_Ea...Story Applications UK methane leak spotted using satellites 09/12/2024 8207 views 43 likes Read
IMG-ALT Methane concentrations near Cheltenham
/About_Us/Week_in_images/Week_...Subdomain Focus on Week in images: 02-06 December 2024 Discover our week through the lens Open
IMG-ALT Sentinel-1C radar satellite on its way to orbit
/ESA_Multimedia/Videos/2024/12...Video 00:03:40 Applications Vega-C and Sentinel-1C launch highlights 06/12/2024 1479 views 46 likes Play
IMG-ALT Play
https://www.esa.int/(archive)/0More items
/ESA_Multimedia/Videos/2024/07...Play
IMG-ALT Open item
/ESA/Our_MissionsSubdomain Focus on Our missions Discover our missions: past, present and future. Open
IMG-ALT Open
https://discover.esa.int/New window External Subdomain Focus on Discover ESA Explore the full range of ESA’s activities through a set of thematic journeys Open
IMG-ALT Open
/About_Us/ESA_Publications/Thi...Focus on This is ESA This is ESA is an illustrated guide to what ESA is and what we do. Now available in all Member State languages. Open
IMG-ALT Open
http://blogs.esa.int/New window External Subdomain Focus on ESA Blog Navigator Check out all our active blogs - although update frequency can vary. Open
IMG-ALT ESA blog navigator link
https://brand.esa.int/New window External Subdomain Focus on ESA Brand Centre Discover the ESA brand, with guidelines and downloadable assets, such as logos. Plus explore ESA brand licensing, co-branding and m...
IMG-ALT Open
/ESA_Multimedia/Images/2023/11...Text duplicate View
IMG-ALT Open item
/Applications/Observing_the_Ea...Text duplicate Story Applications UK methane leak spotted using satellites 09/12/2024 8207 views 43 likes Read
IMG-ALT Methane concentrations near Cheltenham
/Science_Exploration/Space_Sci...Story Science & Exploration BepiColombo reveals Mercury in a new light 09/12/2024 5972 views 68 likes Read
IMG-ALT First mid-infrared light observations of Mercury
/Applications/Observing_the_Ea...Story Applications Sentinel-1C captures first radar images 10/12/2024 12263 views 100 likes Read
IMG-ALT The Netherlands from Sentinel-1C
/ESA_Multimedia/Images/2024/12...Text duplicate Image Enabling & Support Space design chamber made in LEGO 10/12/2024 1367 views 27 likes View
IMG-ALT Space design chamber made in LEGO
/Science_Exploration/Space_Sci...Text duplicate Story Science & Exploration Webb finds primeval star-forming galaxy that is lightweight 11/12/2024 934 views 24 likes Read
IMG-ALT Galaxy cluster MACS J1423 (NIRCam image)
/Science_Exploration/Space_Sci...Story Science & Exploration Zoom into the first page of ESA Euclid’s great cosmic atlas 15/10/2024 285865 views 369 likes Read
IMG-ALT Mosaic of Euclid observations in the Southern Sky
/ESA_Multimedia/Videos/2024/12...Text duplicate Video 00:04:04 Agency Paxi explores ice 11/12/2024 230 views 7 likes Play
IMG-ALT Play
/ESA_Multimedia/Videos/2024/12...Text duplicate Video 00:03:40 Applications Vega-C and Sentinel-1C launch highlights 06/12/2024 1479 views 46 likes Play
IMG-ALT Play
/ESA_Multimedia/Videos/2024/12...Video 00:01:21 Enabling & Support Proba-3 launch campaign replay 05/12/2024 1018 views 15 likes Play
IMG-ALT Play
/ESA_Multimedia/Videos/2024/12...Video 00:09:01 Enabling & Support Creating artificial eclipses to study the Sun | Proba-3 exp… 03/12/2024 1305 views 44 likes Play
IMG-ALT Play
/ESA_Multimedia/Videos/2024/12...Video 00:02:39 Science & Exploration Ignis mission name and patch explained 02/12/2024 523 views 3 likes Play
IMG-ALT Play
/ESA_Multimedia/VideosText duplicate More items
/About_Us/Careers_at_ESAFocus on Careers at ESA Work with a highly dedicated team, committed to ensuring that Europe continues to remain at the forefront of the space industry. Open
IMG-ALT Open
/About_Us/Business_with_ESAFocus on Business with ESA ESA procurements aim to accomplish ESA space missions and to support the competitiveness of the European space industry. Open
IMG-ALT Open
https://ideas.esa.int/New window External Subdomain Focus on Open Space Innovation Platform Submit your ideas and change the future of space research, technology and applications. Open
IMG-ALT Open Space Innovation Platform
https://commercialisation.esa....New window External Subdomain Focus on ESA Commercialisation Gateway Creating links between new businesses and ESA Open
IMG-ALT ESA Commercialisation Gateway
/ESA_Multimedia/Images/2024/12...Text duplicate Image Enabling & Support Space design chamber made in LEGO 10/12/2024 1367 views 27 likes View
IMG-ALT Space design chamber made in LEGO
/ESA_Multimedia/Images/2024/12...Image Applications Earth from Space: First seasonal snow 06/12/2024 2008 views 56 likes View
IMG-ALT This Copernicus Sentinel-2 image from 21 November 2024 captures the first snow of the season over Denmark and southern Sweden.
/ESA_Multimedia/Images/2024/11...Image Science & Exploration BepiColombo's fifth Mercury flyby 29/11/2024 3499 views 73 likes View
IMG-ALT BepiColombo's fifth Mercury flyby
/ESA_Multimedia/Images/2024/11...Image Applications Earth from Space: Agricultural patchwork, Romania 29/11/2024 1819 views 47 likes View
IMG-ALT A colourful patchwork of agricultural fields is pictured in this radar image captured by Copernicus Sentinel-1 over southeastern Romania.
/ESA_Multimedia/Images/2024/11...Image Science & Exploration Webb traces swirling spiral arms in infrared 27/11/2024 2642 views 90 likes View
IMG-ALT Webb traces spiral arms in infrared
/ESA_Multimedia/ImagesText duplicate More items
/Services/Frequently_asked_que...FAQ
/Services/ContactsContacts
/Services/Terms_and_conditionsTerms and conditions
/Services/Privacy_noticePrivacy notice
/About_Us/Careers_at_ESAText duplicate Careers at ESA
/Services/Email_updatesSubscribe
https://www.youtube.com/user/ESANew window External Subdomain No Text
https://twitter.com/esaNew window External No Text
https://www.facebook.com/Europ...New window External Subdomain No Text
https://www.instagram.com/euro...New window External Subdomain No Text
https://www.linkedin.com/compa...New window External Subdomain No Text
https://www.pinterest.com/Euro...New window External Subdomain No Text

Server configuration

HTTP redirects
(Critically important)
This page redirects to "https://www.esa.int/"
HTTP header
(Important)
No X-Powered HTTP header is sent.
This page uses GZip for compressed data transmission.
Performance
(Somewhat important)
The page response time is excellent with 0.11 seconds.
The file size of the HTML document is fine (54 kB).

HTTP Response Header

NameValue
expiresThu, 12 Dec 2024 08:31:02 GMT
served-bywww.esa.int
content-languageen-GB
strict-transport-securitymax-age=604800
cache-controlmax-age=600
last-modifiedThu, 12 Dec 2024 08:21:32 GMT
content-encodinggzip
content-typetext/html; charset=utf-8
via1.1 varnish, 1.1 varnish
accept-rangesbytes
dateThu, 12 Dec 2024 08:27:14 GMT
age342
x-served-bycache-par-lfpg1960097-PAR, cache-fra-etou8220075-FRA
x-cacheHIT, HIT
x-cache-hits6, 1
x-timerS1733992034.278914,VS0,VE1
varyAccept-Encoding,Origin
content-length7829
statuscode200
http_versionHTTP/2

External factors

This page is referenced by wikipedia.
This website has excellent links from other websites.
This page has backlinks from 42,801 referring domains.
This page has 8,246,782 backlinks.
This page has backlinks from 28,262 different ip addresses.

Links from Wikipedia

You can find more links using Wikipedia search

Robots.txt

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www.esa.int
European Space Agency
The European Space Agency portal features the latest news in space exploration, human spaceflight, launchers, telecommunications, navigation, monitoring and space science.

Most important keywords

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

KeywordResultRecheck
Space70%Check
European Space69%Check
Space Agency69%Check
European Space Agency68%Check
Agency65%Check
Space Exploration59%Check
light58%Check
new56%Check
launch56%Check
flight52%Check
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