Spacetelescope.org - SEO Checker

Overview of the SEO Check
Meta information
80% 
Page quality
84% 
Page structure
58% 
Link structure
36% 
Server
91% 
External factors
100% 
SEO Score
Response time
0.11 s
File size
77.40 kB
Words
1369
Media files
60
Number of links
300 internal / 19 external

Task list of SEO Improvements

Meta specifications

Title
(Critically important)
ESA/Hubble
The page title is too short. (111 pixels of 580 max pixel length) Optimize title
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
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No canonical link is specified.
Language
(Somewhat important)
Language detected in text: en
Language defined in HTML: en
Server location: Germany
The following language is defined by HTML: en
Alternate/Hreflang Links
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There are no alternate links specified on this page.
Other meta tags
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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 name is very long.
The domain is no subdomain.
The domain does not contain non-latin characters.
Page URL
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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
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The charset encoding (UTF-8) is set correctly.
Doctype
(Nice to have)
The doctype HTML 5 is set correctly.
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Favicon
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The favicon is linked correctly.

Meta tags

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viewportwidth=device-width, initial-scale=1
google-site-verificationKTjYtxjG6PEMU6XMF7LY4nMnJ7MXxYaNzVY6SYTo1Qc
authorinformation@eso.org
langen
twitter:cardsummary
og:titleESA/Hubble Space Telescope
og:descriptionThe ESA page for the Hubble Space Telescope, the space-based observatory that has revolutionised modern astronomy.
og:imagehttp://www.spacetelescope.org/static/archives/images/screen/hubble_earth_sp01.jpg
og:image:secure_urlhttps://www.spacetelescope.org/static/archives/images/screen/hubble_earth_sp01.jpg
X-UA-CompatibleIE=edge
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Page quality

Content
(Critically important)
The average number of words per sentence of 28.5 words is high.
This page contains 1369 words. That's ok.
20.3% of the text are stop words.
The page contains a listing, which indicates a good text layout.
6 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.
Frames
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This page does not use a frameset.
Mobile optimization
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No Apple touch icon is specified.
A viewport "width=device-width, initial-scale=1" is provided.
This page only loads 1 JavaScript files. That's good!
Bold and strong tags
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The usage of strong and bold tags is perfect. We recommend the use of up to 27 tags for this page.
Image SEO
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Alt text (alternative text) is correctly used on all found images.
Social Networks
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There are only a few social sharing widgets on the page. Make your website popular in social networks with social sharing widgets.
Additional markup
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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
/static/frontpage/ads/hubble30.jpgHubble 30

Page structure

H1 heading
(Critically important)
There is no H1 heading specified.
Headings
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Heading structure

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1 links don't have an anchor text.
The number of internal links is ok.
There are 19 external links on this page.
LinkAttributesAnchor text
https://www.spacetelescope.org/No Text
/contactContact
/subscribe/Subscribe to Hubble News
/sitemap/Site Map
/search/No Text
http://www.esa.int/External No Text
https://www.spacetelescope.org/Home
/news/News
/news/Press Releases
/news/archive/year/2020/2020
/news/archive/year/2019/2019
/news/archive/year/2018/2018
/news/archive/year/2017/2017
/news/archive/year/2016/2016
/news/archive/year/2015/2015
/news/archive/year/2014/2014
/news/archive/year/2013/2013
/news/archive/year/2012/2012
/news/archive/year/2011/2011
/news/archive/year/2010/2010
/news/archive/year/2009/2009
/news/archive/year/2008/2008
/news/archive/year/2007/2007
/news/archive/year/2006/2006
/news/archive/year/2005/2005
/news/archive/year/2004/2004
/news/archive/year/2003/2003
/news/archive/year/2002/2002
/news/archive/year/2001/2001
/news/archive/year/2000/2000
/news/archive/year/1999/1999
/announcements/Announcements
/announcements/archive/year/2020/Text duplicate 2020
/announcements/archive/year/2019/Text duplicate 2019
/announcements/archive/year/2018/Text duplicate 2018
/announcements/archive/year/2017/Text duplicate 2017
/announcements/archive/year/2016/Text duplicate 2016
/announcements/archive/year/2015/Text duplicate 2015
/announcements/archive/year/2014/Text duplicate 2014
/announcements/archive/year/2013/Text duplicate 2013
/announcements/archive/year/2012/Text duplicate 2012
/announcements/archive/year/2011/Text duplicate 2011
/announcements/archive/year/2010/Text duplicate 2010
/announcements/archive/year/2009/Text duplicate 2009
/announcements/archive/year/2008/Text duplicate 2008
/announcements/archive/year/2007/Text duplicate 2007
/announcements/archive/year/2006/Text duplicate 2006
/images/potw/Picture of the Week
/images/potw/archive/year/2020/Text duplicate 2020
/images/potw/archive/year/2019/Text duplicate 2019
/images/potw/archive/year/2018/Text duplicate 2018
/images/potw/archive/year/2017/Text duplicate 2017
/images/potw/archive/year/2016/Text duplicate 2016
/images/potw/archive/year/2015/Text duplicate 2015
/images/potw/archive/year/2014/Text duplicate 2014
/images/potw/archive/year/2013/Text duplicate 2013
/images/potw/archive/year/2012/Text duplicate 2012
/images/potw/archive/year/2011/Text duplicate 2011
/images/potw/archive/year/2010/Text duplicate 2010
/images/Images
/images/viewall/View All
/images/archive/top100/Top 100
/static/images/zip/top100/top1...Top 100 Large Size (ZIP file, 1.2GB)
/static/images/zip/top100/top1...Top 100 Original Size (ZIP file, 4.7GB)
/images/Categories
/images/archive/category/anniv...Anniversary
/images/archive/category/cosmo...Cosmology
/images/archive/category/exopl...Exoplanets
/images/archive/category/galax...Galaxies
/images/archive/category/illus...Illustrations
/images/archive/category/jwst/James Webb Space Telescope
/images/archive/category/mission/Launch/Servicing Missions
/images/archive/category/misc/Miscellaneous
/images/archive/category/nebulae/Nebulae
/images/archive/category/black...Quasars & Black Holes
/images/archive/category/solar...Solar System
/images/archive/category/space...Spacecraft
/images/archive/category/starc...Star Clusters
/images/archive/category/stars/Stars
/press/image_formats/Image Formats
/images/potw/Text duplicate Picture of the Week
/images/search/Advanced Search
/copyright/Usage of Images and Videos
/videos/Videos
/videos/viewall/Text duplicate View All
/videos/Text duplicate Categories
/videos/archive/category/3d/3D Animations
/videos/archive/category/cosmo...Text duplicate Cosmology
/videos/archive/category/fulld...Fulldome
/videos/archive/category/extra...Text duplicate Exoplanets
/videos/archive/category/eyeso...Eyes on the Skies DVD
/videos/archive/category/galax...Text duplicate Galaxies
/videos/archive/category/hd/HD Videos
/videos/archive/category/dvd/Hubble 15 Years DVD
/videos/archive/category/hubble/Hubble Images Videos
/videos/archive/category/hubbl...Hubblecast
/videos/archive/category/jwst/Text duplicate James Webb Space Telescope
/videos/archive/category/misc/Text duplicate Miscellaneous
/videos/archive/category/nebulae/Text duplicate Nebulae
/videos/archive/category/black...Text duplicate Quasars & Black Holes
/videos/archive/category/solar...Text duplicate Solar System
/videos/archive/category/space...Text duplicate Spacecraft
/videos/archive/category/clust...Text duplicate Star Clusters
/videos/archive/category/stars/Text duplicate Stars
/press/video_formats/Video Formats
/videos/search/Text duplicate Advanced Search
/copyright/Text duplicate Usage of Images and Videos
/newsletters/Newsletters
/newsletters/hubblenews/ESA/Hubble News
/forscientists/announcements/Science Announcements
/newsletters/science/ESA/Hubble Science Newsletter
http://eepurl.com/Csm49External Subscribe to the ESA/Hubble Science Newsletter
/products/Initiatives
/products/calendars/Calendars
/products/calendars/archive/ye...Text duplicate 2020
/products/calendars/archive/ye...Text duplicate 2013
/products/calendars/archive/ye...Text duplicate 2012
/products/calendars/archive/ye...Text duplicate 2011
/products/calendars/archive/ye...Text duplicate 2010
/products/calendars/archive/ye...Text duplicate 2009
/products/calendars/archive/ye...Text duplicate 2008
/products/calendars/archive/ye...Text duplicate 2007
/products/calendars/archive/ye...Text duplicate 2006
/products/calendars/archive/ye...Text duplicate 2005
/products/calendars/archive/ye...Text duplicate 2004
/projects/ourplaceinspace/Our Place in Space
/announcements/ann2009/30th Anniversary Creations
/projects/Hubble30/30th Anniversary
/projects/Hubble25/25th Anniversary
/projects/Hubble25/odetohubble/Ode to Hubble Competition
/projects/Hubble25/odetohubble...Under 25s Category - Vote
/projects/Hubble25/odetohubble...Over 25s Category - Vote
/projects/Hubble25/fulldome/Fulldome Clips
http://www.stsci.edu/institute...External Symposium
/projects/Hubble25/imageunveil...Image Unveilings Across Europe
/projects/Hubble25/resources/Resources
/projects/20anniversary/20th Anniversary
/projects/20anniversary/events/Events and Exhibitions
/projects/20anniversary/hubble...Hubble Pop Culture Contest
/projects/anniversary/15th Anniversary
/news/?search=15thNews Release
/projects/anniversary/movie_dvd/Movie DVD
/projects/anniversary/partners/Partners
/projects/anniversary/events/Hubble Day Events
/projects/anniversary/educatio...Educational Material
/projects/anniversary/soundtrack/Soundtrack
/projects/anniversary/book/Hubble Anniversary Book
/projects/anniversary/outlets/Outlets/resellers
/projects/anniversary/producti...About the Production Team
/products/print_posters/hst_pr...Poster
/projects/anniversary/planetar...Planetarium Show Package
/projects/anniversary/credits/Credits
/products/exhibitions/Exhibitions
/projects/ourplaceinspace/Text duplicate Our Place in Space
/projects/ourplaceinspace/rooms/OPiS room description
/products/applications/Applications
/products/logos/Logos
/projects/conferences/Conferences
https://www.communicatingastro...External CAP2018
https://web.archive.org/web/20...External Subdomain CAP2016
http://www.communicatingastron...External CAP2013
http://www.communicatingastron...External CAP2011
http://www.communicatingastron...External CAP2010
http://www.communicatingastron...External CAP2007
http://www.communicatingastron...External IYA-ESO 2007
http://www.communicatingastron...External CAP2005
/projects/fits_liberator/FITS Liberator
/projects/fits_liberator/news/Text duplicate News
/projects/fits_liberator/downl...Download
/static/projects/fits_liberato...User Guide (PDF)
/projects/fits_liberator/improc/Image processing introduction
/projects/fits_liberator/fitsf...FITS for education
/projects/fits_liberator/datas...Example data sets and links to archives
/projects/fits_liberator/submi...Submit your images
/projects/fits_liberator/fitsi...User's Gallery
/projects/fits_liberator/fitsm...Subscribe to FITS Liberator news
/projects/fits_liberator/known...Known issues and FAQ
/projects/fits_liberator/bugform/Bug form
/projects/fits_liberator/downl...Download past versions
/projects/fits_liberator/docum...Documents
/projects/fits_liberator/stepb...Step-by-step guide to making your own images
/about/About
/about/general/fact_sheet/General
/about/general/fact_sheet/Fact Sheet
/about/general/instruments/Instruments
/about/general/instruments/wfc3/WFC3
/about/general/instruments/acs/ACS
/about/general/instruments/cos/COS
/about/general/instruments/stis/STIS
/about/general/instruments/nic...NICMOS
/about/general/instruments/fgs/FGS
/about/general/instruments/wfpc2/WFPC2
/about/general/instruments/wfpc1/WFPC1
/about/general/instruments/cos...COSTAR
/about/general/instruments/foc/FOC
/about/general/instruments/fos/FOS
/about/general/instruments/ghrs/GHRS
/about/general/instruments/hsp/HSP
/about/general/operations/Operations
/about/general/institutions/Institutions
/about/general/solar_panels/Solar Panels
/about/general/gyroscopes/Gyroscopes
/about/general/batteries/Batteries
/about/general/soft_capture/Soft Capture
/science/Science
/science/deep_fields/The Hubble Deep Fields
/science/age_size/Age and size of the Universe
/science/stellar_evolution/The lives of stars
/science/our_solar_system/The solar neighbourhood
/science/protoplanetary_extras...Exoplanets and proto-planetary discs
/science/black_holes/Black Holes, Quasars, and Active Galaxies
/science/formation_of_stars/Formation of stars
/science/composition_of_universe/Composition of the Universe
/science/gravitational_lensing/Gravitational lenses
/science/gravitational_waves/Multi-messenger astronomy
/science/europe_hubble/Europe & Hubble
/about/history/History
/about/history/timeline/Timeline
/about/history/launch_1990/Launch 1990
/about/history/servicing_missi...Servicing Mission 1
/about/history/servicing_missi...Servicing Mission 2
/about/history/servicing_missi...Servicing Mission 3A
/about/history/servicing_missi...Servicing Mission 3B
/about/history/servicing_missi...Servicing Mission 4
/about/history/imax/IMAX Camera
/about/history/tools/Tools
/about/history/thermal/Thermal
/about/history/crew/Crew
/about/history/acs_repair/ACS Repair
/about/history/stis_repair/STIS Repair
/about/history/sm4_timeline/SM4 Timeline
/about/history/esa/ESA
/about/history/the_man_behind_...The man behind the name
/about/history/aberration_prob...Hubble's mirror problem
/about/faq/FAQ
/about/glossary/Glossary
/about/further_information/bro...Further Information
/press/kits/Press Kits
/press/Press
/copyright/Usage of ESA/Hubble Images and Videos
/press/kits/Text duplicate Press Kits
/subscribe/Subscribe to ESA/Hubble News
/press/interview_possibilities/Interview Possibilities
/press/mailinglist/Embargo Mailing List
/press/video_formats/Text duplicate Video Formats
/press/image_formats/Text duplicate Image Formats
/news/heic2020/heic2020 — Photo Release Hubble Captures Fading of the Stingray Nebula Astronomers have caught a rare glimpse of a rapidly fading shroud of gas around an agi...
IMG-ALT Hubble Captures Fading of the Stingray Nebula
/news/heic2019/heic2019 — Science Release New Hubble Data Explains Missing Dark Matter New data from the NASA/ESA Hubble Space Telescope provides further evidence for tidal...
IMG-ALT Ground-based view of the sky around the galaxies NGC 1052-DF4 NGC & 1052-DF2
/news/heic2018/heic2018 — Photo Release Hubble Observes Spectacular Supernova Time-Lapse The NASA/ESA’s Hubble Space Telescope has tracked the fading light of a supernova i...
IMG-ALT Hubble Captures Supernova in NGC 2525
/news/heic2017/heic2017 — Photo Release Hubble Captures Crisp New Image of Jupiter and Europa This latest image of Jupiter, taken by the NASA/ESA Hubble Space Telescope on ...
IMG-ALT Hubble’s Crisp New Image of Jupiter and Europa
/news/heic2016/heic2016 — Science Release New Hubble Data Suggests There is an Ingredient Missing from Current Dark Matter Theories Observations by the NASA/ESA Hubble Spac...
IMG-ALT Hubble Sheds Light on Small-Scale Concentrations of Dark Matter (Artist’s Impression)
/announcements/Text duplicate Announcements
/announcements/ann2009/Explore the Creations Submitted for Hubble’s 30th Anniversary! 26 Aug. 2020 — ann2009
IMG-ALT Collage of Hubble 30 Artistic Creations
/announcements/ann2008/Two New Hubblecasts Released for Hubble’s 30th Anniversary 27 April 2020 — ann2008
IMG-ALT Screenshot of Hubblecast 128
/announcements/ann2007/Call for Artistic Creations: Let’s Say Thank You to Hubble! 24 April 2020 — ann2007
IMG-ALT Call for Artistic Creations: Let’s Say Thank You to Hubble!
/announcements/ann2006/Media Advisory: Hubble Space Telescope 30th Anniversary 23 April 2020 — ann2006
IMG-ALT Media Advisory: Hubble 30
/announcements/ann2005/Wish Hubble a Happy Birthday! 10 April 2020 — ann2005
IMG-ALT Let’s Wish Hubble a Happy Birthday!
/announcements/ann2004/Update to Hubble Anniversary Image Unveiling Events due to COVID-19 19 March 2020 — ann2004
IMG-ALT Hubble's 28th birthday picture: The Lagoon Nebula
/announcements/ann2003/ESA-Built Hardware on Hubble Reaches 1 Million Degree Slew Milestone 5 March 2020 — ann2003
IMG-ALT Hubble Space Telescope sporting new solar arrays during SM3B
/announcements/ann2002/Event Postponed: Science with the Hubble and James Webb Space Telescopes Conference VI 4 March 2020 — ann2002
IMG-ALT Event banner for the 2020 event “Science with the Hubble and James Webb Space Telescopes VI. Entering a golden age for UV-Optical -IR space astronomy”.
/announcements/ann2001/Hosts Institutions Announced for Hubble’s 30th Anniversary Image Unveiling 24 Feb. 2020 — ann2001
IMG-ALT Host Locations for Hubble’s 30th Anniversary Image Unveiling
/announcements/ann1912/Hubblecast 126: From Ultraviolet to Infrared: Comparing the Hubble and James Webb Space Telescopes 11 Dec. 2019 — ann1912
IMG-ALT Screenshot of Hubblecast 126
/announcements/ann1911/Registration and Abstract Submissions Open for the Science with the Hubble and James Webb Space Telescopes Conference VI 25 Oct. 2019 — ann1911
IMG-ALT Event banner for the 2020 event “Science with the Hubble and James Webb Space Telescopes VI. Entering a golden age for UV-Optical -IR space astronomy”.
/announcements/ann1910/Hubble 30th Anniversary Image Unveiling Solicitation Call Announced 15 Oct. 2019 — ann1910
IMG-ALT Hubble 30 Image Unveiling Solicitation Call
/announcements/ann1909/Social Media Competition to Kickstart Hubble’s 30th Anniversary Celebrations 30 Sept. 2019 — ann1909
IMG-ALT Celebrating 30 years of the NASA/ESA Hubble Space Telescope
/announcements/ann1908/ESA/Hubble Releases the Hubble Catalog of Variables 24 Sept. 2019 — ann1908
IMG-ALT Hubble image of variable star RS Puppis
/announcements/ann1907/Search for Hidden Asteroids with the Hubble Asteroid Hunter 24 June 2019 — ann1907
IMG-ALT Abell 370 Parallel Field with Asteroids
/announcements/ann1906/Hubblecast 121: Discovering Exoplanets from Transits 12 June 2019 — ann1906
IMG-ALT Hubblecast 121: What can we learn from exoplanet transits?
/announcements/ann1905/Announcement of the JWST Masterclass 29 April 2019 — ann1905
IMG-ALT The James Webb Space Telescope
/announcements/ann1904/Hubblecast 119: The Crab of the Southern sky 18 April 2019 — ann1904
IMG-ALT Hubblecast 119: Hubble’s 29th anniversary
/announcements/ann1903/Our Place in Space Opens in Las Cruces, New Mexico 8 April 2019 — ann1903
IMG-ALT Our place in space logo
/announcements/ann1902/Hubblecast 118: How the first stars transformed the Universe 3 April 2019 — ann1902
IMG-ALT Hubblecast 118: How the first stars transformed the Universe
/videos/archive/category/hubbl...Text duplicate Hubblecast
/videos/hubblecast131a/26 August 2020 — hubblecast131a Hubblecast 131 Special: Showcase of Hubble's 30th Anniversary Artistic Creations
/images/potw/Text duplicate Picture of the Week
/images/potw2049a/7 December 2020 — potw2049 The Stellar Forge
IMG-ALT The Stellar Forge
/images/potw2048a/30 November 2020 — potw2048 Cosmic Wonderland
IMG-ALT Cosmic Wonderland
/images/potw2047a/23 November 2020 — potw2047 Mysterious Dark Rays
IMG-ALT Mysterious Dark Rays
/images/potw2046a/16 November 2020 — potw2046 Cosmic Cinnamon Bun
IMG-ALT Cosmic Cinnamon Bun
/images/potw2045a/9 November 2020 — potw2045 Contorting Giants
IMG-ALT Contorting Giants
/images/potw2044a/2 November 2020 — potw2044 A Waterfall of Stars
IMG-ALT A Waterfall of Stars
/images/potw2043a/26 October 2020 — potw2043 Beauty From Chaos
IMG-ALT Beauty From Chaos
/images/potw2042a/19 October 2020 — potw2042 Galactic Waterspout
IMG-ALT Galactic Waterspout
/images/potw2041a/12 October 2020 — potw2041 A frEGGS-plosion of Star Formation
IMG-ALT A frEGGS-plosion of Star Formation
/images/potw2040a/5 October 2020 — potw2040 Survey of the Stars
IMG-ALT Survey of the Stars
/projects/Hubble30/IMG-ALT Celebrating 30 years of the Hubble Space Telescope
/newsletters/science/IMG-ALT Science Newsletter
/newsletters/IMG-ALT Highlights
/videos/archive/category/hubbl...Text duplicate IMG-ALT Highlights
/projects/Hubble30/IMG-ALT Hubble 30
http://www.facebook.com/HubbleESAExternal No Text
http://twitter.com/hubble_spaceExternal No Text
http://www.youtube.com/user/Hu...External No Text
http://itunes.apple.com/de/pod...External Subdomain No Text
http://www.vimeo.com/hubbleesaExternal No Text
http://www.flickr.com/photos/h...External No Text
https://www.instagram.com/hubb...External No Text
/images/archive/top100/Top 100 Images
/images/heic2007a/Tapestry of Blazing Starbirth
IMG-ALT Tapestry of Blazing Starbirth
/images/heic1509a/Westerlund 2 — Hubble’s 25th anniversary image
IMG-ALT Westerlund 2 — Hubble’s 25th anniversary image
/images/heic1501a/New view of the Pillars of Creation — visible
IMG-ALT New view of the Pillars of Creation — visible
/images/heic1107a/A rose made of galaxies
IMG-ALT A rose made of galaxies
/images/heic0715a/Extreme star cluster bursts into life in new Hubble image
IMG-ALT Extreme star cluster bursts into life in new Hubble image
/images/heic1608a/The Bubble Nebula
IMG-ALT The Bubble Nebula
/images/potw1345a/Antennae Galaxies reloaded
IMG-ALT Antennae Galaxies reloaded
/images/heic1307a/New infrared view of the Horsehead Nebula — Hubble’s 23rd anniversary image
IMG-ALT New infrared view of the Horsehead Nebula — Hubble’s 23rd anniversary image
/images/heic0817a/Magnetic monster NGC 1275
IMG-ALT Magnetic monster NGC 1275
/images/heic0406a/Hubble sees galaxies galore
IMG-ALT Hubble sees galaxies galore
/images/opo0328a/Hubble mosaic of the majestic Sombrero Galaxy
IMG-ALT Hubble mosaic of the majestic Sombrero Galaxy
/images/heic1917a/Latest Saturn Portrait
IMG-ALT Latest Saturn Portrait
/images/heic0702a/New stars shed light on the past
IMG-ALT New stars shed light on the past
/images/heic0515a/Most detailed image of the Crab Nebula
IMG-ALT Most detailed image of the Crab Nebula
/images/heic1808a/Hubble's 28th birthday picture: The Lagoon Nebula
IMG-ALT Hubble's 28th birthday picture: The Lagoon Nebula
/images/potw1811a/Spirals and supernovae
IMG-ALT Spirals and supernovae
/images/heic0910h/Butterfly emerges from stellar demise in planetary nebula NGC 6302
IMG-ALT Butterfly emerges from stellar demise in planetary nebula NGC 6302
/images/heic0601a/Hubble's sharpest view of the Orion Nebula
IMG-ALT Hubble's sharpest view of the Orion Nebula
/images/heic0514a/Young stars sculpt gas with powerful outflows
IMG-ALT Young stars sculpt gas with powerful outflows
/images/heic0506b/The Eagle has risen: stellar spire in the Eagle Nebula
IMG-ALT The Eagle has risen: stellar spire in the Eagle Nebula
http://www.cdn77.com/External Accelerated by CDN77

Server configuration

HTTP redirects
(Critically important)
This page redirects to "https://www.spacetelescope.org/"
HTTP header
(Important)
The web server version is sent within the HTTP header.
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.
This page only loads 3 CSS files. That's ok.
This page only loads 1 JavaScript files. That's good!
The file size of the HTML document is fine (77 kB).

HTTP Response Header

NameValue
servernginx/1.17.10
dateThu, 10 Dec 2020 00:46:41 GMT
content-typetext/html; charset=utf-8
content-length10787
connectionkeep-alive
content-encodinggzip
expiresThu, 10 Dec 2020 00:50:51 GMT
varyAccept-Encoding
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cache-controlmax-age=300
access-control-allow-origin*
access-control-request-method*
x-frame-optionsSAMEORIGIN
statuscode200
http_versionHTTP/1.1

External factors

Blacklists
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This website is not classified "for adult only".
This website is not listed on the Shallalist.
This page is referenced by wikipedia.
This website has excellent links from other websites.
This page has backlinks from 10,669 referring domains.
This page has 9,306,999 backlinks.
This page has backlinks from 8,842 different ip addresses.
Facebook popularity
(Somewhat important)
This page has social activity like shares, comments or likes on facebook.
Listed on Webwiki
(Nice to have)
This website is listed on Webwiki.

Robots.txt

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Facebook popularity

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2,092

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

KeywordResultRecheck
Hubble50%Check
Space48%Check
Hubble Space Telescope48%Check
Telescope48%Check
Space Telescope48%Check
New Hubble43%Check
Hubble Captures43%Check
Hubble Anniversary43%Check
Hubble News43%Check
Hubble Science Newsletter41%Check

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