Esa.int

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

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https://www.esa.int/var/esa/storage/images/esa_multimedia/images/2019/10/science_exploration_luca_parmitano/21101804-1-eng-GB/Science_Exploration_Luca_Parmitano_card_medium.png 73003 58205
https://www.esa.int/var/esa/storage/images/esa_multimedia/images/2019/08/a_sphere_of_colour/19653749-1-eng-GB/A_sphere_of_colour_card_medium.jpg 76533 58165
https://www.esa.int/var/esa/storage/images/esa_multimedia/images/2020/09/rainbow_comet_with_a_heart_of_sponge/22191729-1-eng-GB/Rainbow_comet_with_a_heart_of_sponge_card_full.jpg 81825 56317
https://www.esa.int/var/esa/storage/images/esa_multimedia/videos/2020/07/is_comet_neowise_a_near-earth_object/22163388-1-eng-GB/Is_comet_NEOWISE_a_near-Earth_object_card_medium.png 149768 48573
https://www.esa.int/var/esa/storage/images/esa_multimedia/images/2019/10/earth_science/21133752-1-eng-GB/Earth_science_card_medium.jpg 63466 47600
https://www.esa.int/var/esa/storage/images/esa_multimedia/images/2019/10/education/21094107-3-eng-GB/Education_card_medium.jpg 60136 47219
https://www.esa.int/var/esa/storage/images/esa_multimedia/images/2019/10/kids/21093987-3-eng-GB/Kids_card_medium.jpg 51520 36426
https://www.esa.int/var/esa/storage/images/esa_multimedia/images/2020/08/wind_turbines_on_a_green_hillside/22168409-1-eng-GB/Wind_turbines_on_a_green_hillside_card_medium.jpg 57587 33953
https://www.esa.int/var/esa/storage/images/esa_multimedia/videos/2020/09/earth_from_space_amazon_river/22197310-1-eng-GB/Earth_from_Space_Amazon_River_card_medium.jpg 103613 33604
https://www.esa.int/var/esa/storage/images/esa_multimedia/images/2019/10/media/21094147-2-eng-GB/Media_card_medium.jpg 42034 33514
https://www.esa.int/var/esa/storage/images/esa_multimedia/images/2019/10/moon/21133712-1-eng-GB/Moon_card_medium.jpg 42111 31583
https://www.esa.int/var/esa/storage/images/esa_multimedia/videos/2020/09/meet_the_experts_comets/22190764-1-eng-GB/Meet_the_Experts_Comets_card_medium.png 96345 31247
https://www.esa.int/var/esa/storage/images/esa_multimedia/images/2012/01/solar_flare_seen_by_esa_nasa_soho_satellite_23_january/9500230-4-eng-GB/Solar_flare_seen_by_ESA_NASA_SOHO_satellite_23_January_card_medium.jpg 39402 29552
https://www.esa.int/var/esa/storage/images/esa_multimedia/images/2017/06/space_rider/16966841-1-eng-GB/Space_Rider_card_medium.jpg 42686 24382
https://www.esa.int/var/esa/storage/images/esa_multimedia/images/2015/06/hera_networking_with_cubesats/15477210-8-eng-GB/Hera_networking_with_CubeSats_card_medium.jpg 29400 23454
https://www.esa.int/var/esa/storage/images/esa_multimedia/images/2019/10/our_missions/21109953-1-eng-GB/Our_missions_card_medium.jpg 71139 23072
https://www.esa.int/var/esa/storage/images/esa_multimedia/images/2015/01/picasso_cubesat2/15211126-1-eng-GB/PICASSO_CubeSat_card_medium.jpg 28254 22097
https://www.esa.int/var/esa/storage/images/esa_multimedia/images/2019/10/careers/21093729-4-eng-GB/Careers_card_medium.jpg 58621 21906
https://www.esa.int/var/esa/storage/images/esa_multimedia/images/2018/09/mosaic/22194090-1-eng-GB/MOSAiC_card_medium.jpg 105504 21101
https://www.esa.int/var/esa/storage/images/esa_multimedia/images/2020/09/expanding_estec_s_test_centre/22196123-1-eng-GB/Expanding_ESTEC_s_Test_Centre_card_full.jpg 89855 21047
https://www.esa.int/var/esa/storage/images/esa_multimedia/videos/2020/09/preparing_for_lunar_exploration_frank_de_winne/22198397-1-eng-GB/Preparing_for_lunar_exploration_Frank_De_Winne_card_medium.png 64170 20812
https://www.esa.int/var/esa/storage/images/esa_multimedia/images/2020/09/register_for_esa_s_ph-week_event/22190714-1-eng-GB/Register_for_ESA_s_Ph-Week_event_card_medium.jpg 62465 19087
https://www.esa.int/var/esa/storage/images/esa_multimedia/images/2019/10/esa_web_tv/21107199-1-eng-GB/ESA_Web_TV_card_medium.jpg 55229 18814
https://www.esa.int/var/esa/storage/images/esa_multimedia/images/2015/06/jan_woerner/15492650-1-eng-GB/Jan_Woerner_card_medium.jpg 42379 18783
https://www.esa.int/var/esa/storage/images/esa_multimedia/images/2019/10/space_transportation/21120663-1-eng-GB/Space_transportation_card_medium.jpg 23489 17617
https://www.esa.int/var/esa/storage/images/esa_multimedia/images/2019/02/sat-ais_artists_impression2/19247657-1-eng-GB/SAT-AIS_artists_impression_card_medium.jpg 22087 16118
https://www.esa.int/var/esa/storage/images/esa_multimedia/images/2020/09/west_coast_wildfires/22200473-1-eng-GB/West_coast_wildfires_card_medium.jpg 31442 13413
https://www.esa.int/var/esa/storage/images/esa_multimedia/videos/2020/09/advice_from_an_astronaut/22196031-3-eng-GB/Advice_from_an_astronaut_card_medium.jpg 33715 10935
https://www.esa.int/var/esa/storage/images/esa_multimedia/images/2020/09/west_coast_wildfires/22200473-1-eng-GB/West_coast_wildfires_card_full.jpg 40116 10379
https://www.esa.int/var/esa/storage/images/esa_multimedia/images/2010/01/kiruna_station/10244676-2-eng-GB/Kiruna_station_card_medium.jpg 34133 7115
https://www.esa.int/var/esa/storage/images/esa_multimedia/images/2019/03/meteosat_third_generation/19292052-1-eng-GB/Meteosat_Third_Generation_card_medium.jpg 30893 6883
https://www.esa.int/var/esa/storage/images/esa_multimedia/images/2019/10/business_with_esa/21093947-3-eng-GB/Business_with_ESA_card_medium.jpg 38182 6539
https://www.esa.int/var/esa/storage/images/esa_multimedia/videos/2020/09/meet_the_experts_designing_a_space_mission/22200723-1-eng-GB/Meet_the_Experts_Designing_a_space_mission_card_medium.jpg 18222 5938
https://www.esa.int/var/esa/storage/images/esa_multimedia/images/2020/08/esa_open_day_estec_2020/22180657-1-eng-GB/ESA_Open_day_ESTEC_2020_card_medium.jpg 39332 5810
https://www.esa.int/var/esa/storage/images/esa_multimedia/images/2020/04/information_for_all_visitors_to_esa_sites/21932843-1-eng-GB/Information_for_all_visitors_to_ESA_sites_card_medium.jpg 25326 5065
https://www.esa.int/extension/pillars/design/pillars/images/flags/flag_uni.png 5001 4754

Overall Saving: 4760[ms], 6185925[Bytes]

Image formats like JPEG 2000, JPEG XR, and WebP often provide better compression than PNG or JPEG, which means faster downloads and less data consumption.
Click here to learn how to optimize this
URL Resource Size [Bytes] Potential Savings [Bytes]
https://www.esa.int/var/esa/storage/images/esa_multimedia/videos/2020/05/expedition_home/22009008-8-eng-GB/Expedition_Home_pillars.png 702953 628903
https://www.esa.int/var/esa/storage/images/esa_multimedia/images/2020/07/solar_orbiter_s_first_view_of_the_sun/22133039-1-eng-GB/Solar_Orbiter_s_first_view_of_the_Sun_pillars.jpg 614907 362701
https://www.esa.int/var/esa/storage/images/esa_multimedia/images/2020/09/west_coast_wildfires/22200473-1-eng-GB/West_coast_wildfires_pillars.jpg 928142 196758
https://www.esa.int/var/esa/storage/images/esa_multimedia/videos/2020/09/earth_from_space_gulf_of_kutch/22167325-1-eng-GB/Earth_from_Space_Gulf_of_Kutch_card_medium.png 230724 195174
https://www.esa.int/var/esa/storage/images/esa_multimedia/images/2020/04/happy_siblings_using_table_in_the_kitchen/21941947-1-eng-GB/Happy_siblings_using_table_in_the_kitchen_pillars.jpg 311566 181586
https://www.esa.int/var/esa/storage/images/esa_multimedia/videos/2020/09/advice_from_an_astronaut/22196031-3-eng-GB/Advice_from_an_astronaut_pillars.jpg 277588 137358
https://www.esa.int/var/esa/storage/images/esa_multimedia/videos/2020/07/is_comet_neowise_a_near-earth_object/22163388-1-eng-GB/Is_comet_NEOWISE_a_near-Earth_object_card_medium.png 149768 135482
https://www.esa.int/var/esa/storage/images/esa_multimedia/images/2020/09/this_is_esa_graphic/22186746-1-eng-GB/This_Is_ESA_graphic_pillars.jpg 218446 111344
https://www.esa.int/var/esa/storage/images/esa_multimedia/videos/2020/09/meet_the_experts_comets/22190764-1-eng-GB/Meet_the_Experts_Comets_card_medium.png 96345 89919
https://www.esa.int/var/esa/storage/images/esa_multimedia/images/2019/10/science_exploration_tim_peake/21101844-1-eng-GB/Science_Exploration_Tim_Peake_card_medium.png 99062 86824
https://www.esa.int/var/esa/storage/images/esa_multimedia/images/2019/10/science_exploration_samantha_cristoforetti/21101644-1-eng-GB/Science_Exploration_Samantha_Cristoforetti_card_medium.png 88613 80293
https://www.esa.int/var/esa/storage/images/esa_multimedia/images/2019/10/science_exploration_alexander_gerst/21101684-1-eng-GB/Science_Exploration_Alexander_Gerst_card_medium.png 88410 79518
https://www.esa.int/var/esa/storage/images/esa_multimedia/images/2018/09/mosaic/22194090-1-eng-GB/MOSAiC_card_medium.jpg 105504 78852
https://www.esa.int/var/esa/storage/images/esa_multimedia/images/2019/10/science_exploration_andreas_mogensen/21101764-1-eng-GB/Science_Exploration_Andreas_Mogensen_card_medium.png 86733 77051
https://www.esa.int/var/esa/storage/images/esa_multimedia/images/2019/10/science_exploration_thomas_pesquet/21101884-1-eng-GB/Science_Exploration_Thomas_Pesquet_card_medium.png 84359 75505
https://www.esa.int/var/esa/storage/images/esa_multimedia/images/2019/10/science_exploration_matthias_maurer/21101724-1-eng-GB/Science_Exploration_Matthias_Maurer_card_medium.png 81353 73007
https://www.esa.int/var/esa/storage/images/esa_multimedia/images/2020/09/backbone_of_a_spacecraft/22195323-1-eng-GB/Backbone_of_a_spacecraft_card_full.jpg 149982 69576
https://www.esa.int/var/esa/storage/images/esa_multimedia/images/2019/10/science_exploration_luca_parmitano/21101804-1-eng-GB/Science_Exploration_Luca_Parmitano_card_medium.png 73003 64537
https://www.esa.int/var/esa/storage/images/esa_multimedia/videos/2020/09/earth_from_space_amazon_river/22197310-1-eng-GB/Earth_from_Space_Amazon_River_card_medium.jpg 103613 62281
https://www.esa.int/var/esa/storage/images/esa_multimedia/images/2020/09/expanding_estec_s_test_centre/22196123-1-eng-GB/Expanding_ESTEC_s_Test_Centre_card_full.jpg 89855 58651
https://www.esa.int/var/esa/storage/images/esa_multimedia/videos/2020/09/preparing_for_lunar_exploration_frank_de_winne/22198397-1-eng-GB/Preparing_for_lunar_exploration_Frank_De_Winne_card_medium.png 64170 57640
https://www.esa.int/var/esa/storage/images/esa_multimedia/images/2019/10/our_missions/21109953-1-eng-GB/Our_missions_card_medium.jpg 71139 41503
https://www.esa.int/var/esa/storage/images/esa_multimedia/images/2019/10/education/21094107-3-eng-GB/Education_card_medium.jpg 60136 39186
https://www.esa.int/var/esa/storage/images/esa_multimedia/images/2019/10/earth_science/21133752-1-eng-GB/Earth_science_card_medium.jpg 63466 37608
https://www.esa.int/var/esa/storage/images/esa_multimedia/images/2020/09/rainbow_comet_with_a_heart_of_sponge/22191729-1-eng-GB/Rainbow_comet_with_a_heart_of_sponge_card_full.jpg 81825 36413
https://www.esa.int/var/esa/storage/images/esa_multimedia/images/2020/09/register_for_esa_s_ph-week_event/22190714-1-eng-GB/Register_for_ESA_s_Ph-Week_event_card_medium.jpg 62465 36297
https://www.esa.int/var/esa/storage/images/esa_multimedia/images/2019/10/kids/21093987-3-eng-GB/Kids_card_medium.jpg 51520 36160
https://www.esa.int/var/esa/storage/images/esa_multimedia/images/2019/08/a_sphere_of_colour/19653749-1-eng-GB/A_sphere_of_colour_card_medium.jpg 76533 35187
https://www.esa.int/var/esa/storage/images/esa_multimedia/images/2019/10/careers/21093729-4-eng-GB/Careers_card_medium.jpg 58621 34671
https://www.esa.int/var/esa/storage/images/esa_multimedia/images/2019/10/esa_web_tv/21107199-1-eng-GB/ESA_Web_TV_card_medium.jpg 55229 32479
https://www.esa.int/var/esa/storage/images/esa_multimedia/images/2020/09/cloud_cover_over_manila_bay/22188500-2-eng-GB/Cloud_cover_over_Manila_Bay_card_medium.jpg 45558 29458
https://www.esa.int/var/esa/storage/images/esa_multimedia/images/2019/10/esa_shop/21094027-4-eng-GB/ESA_Shop_card_medium.jpg 44314 29314
https://www.esa.int/var/esa/storage/images/esa_multimedia/images/2019/10/moon/21133712-1-eng-GB/Moon_card_medium.jpg 42111 24111
https://www.esa.int/var/esa/storage/images/esa_multimedia/images/2020/08/esa_open_day_estec_2020/22180657-1-eng-GB/ESA_Open_day_ESTEC_2020_card_medium.jpg 39332 21732
https://www.esa.int/var/esa/storage/images/esa_multimedia/images/2012/01/solar_flare_seen_by_esa_nasa_soho_satellite_23_january/9500230-4-eng-GB/Solar_flare_seen_by_ESA_NASA_SOHO_satellite_23_January_card_medium.jpg 39402 21402
https://www.esa.int/var/esa/storage/images/esa_multimedia/images/2020/08/wind_turbines_on_a_green_hillside/22168409-1-eng-GB/Wind_turbines_on_a_green_hillside_card_medium.jpg 57587 21037
https://www.esa.int/var/esa/storage/images/esa_multimedia/images/2019/10/business_with_esa/21093947-3-eng-GB/Business_with_ESA_card_medium.jpg 38182 20082
https://www.esa.int/var/esa/storage/images/esa_multimedia/images/2019/10/esa_blog_navigator_link/21129844-2-eng-GB/ESA_blog_navigator_link_card_medium.jpg 34916 19916
https://www.esa.int/var/esa/storage/images/esa_multimedia/images/2019/10/media/21094147-2-eng-GB/Media_card_medium.jpg 42034 19834
https://www.esa.int/var/esa/storage/images/esa_multimedia/images/2020/09/ready_for_bremen/22198978-1-eng-GB/Ready_for_Bremen_card_full.jpg 103574 16570
https://www.esa.int/var/esa/storage/images/esa_multimedia/images/2015/06/jan_woerner/15492650-1-eng-GB/Jan_Woerner_card_medium.jpg 42379 15439
https://www.esa.int/var/esa/storage/images/esa_multimedia/images/2010/01/kiruna_station/10244676-2-eng-GB/Kiruna_station_card_medium.jpg 34133 15183
https://www.esa.int/var/esa/storage/images/esa_multimedia/images/2019/10/this_is_esa/21109855-1-eng-GB/This_is_ESA_card_medium.jpg 29317 14317
https://www.esa.int/var/esa/storage/images/esa_multimedia/images/2019/03/meteosat_third_generation/19292052-1-eng-GB/Meteosat_Third_Generation_card_medium.jpg 30893 11593
https://www.esa.int/var/esa/storage/images/esa_multimedia/videos/2020/09/advice_from_an_astronaut/22196031-3-eng-GB/Advice_from_an_astronaut_card_medium.jpg 33715 11515

Overall Saving: 2560[ms], 3523967[Bytes]

A large DOM will increase memory usage, cause longer [style calculations](https://developers.google.com/web/fundamentals/performance/rendering/reduce-the-scope-and-complexity-of-style-calculations), and produce costly [layout reflows](https://developers.google.com/speed/articles/reflow).
Click here to learn how to optimize this
Statistic Element Value
Total DOM Elements --- 1,663
Maximum DOM Depth --- 15
Maximum Child Elements --- 22
Optimized images load faster and consume less cellular data.
Click here to learn how to optimize this
URL Resource Size [Bytes] Potential Savings [Bytes]
https://www.esa.int/var/esa/storage/images/esa_multimedia/images/2018/09/mosaic/22194090-1-eng-GB/MOSAiC_card_medium.jpg 105504 69675
https://www.esa.int/var/esa/storage/images/esa_multimedia/images/2020/07/solar_orbiter_s_first_view_of_the_sun/22133039-1-eng-GB/Solar_Orbiter_s_first_view_of_the_Sun_pillars.jpg 614907 64142
https://www.esa.int/var/esa/storage/images/esa_multimedia/videos/2020/09/earth_from_space_amazon_river/22197310-1-eng-GB/Earth_from_Space_Amazon_River_card_medium.jpg 103613 49965
https://www.esa.int/var/esa/storage/images/esa_multimedia/images/2020/09/expanding_estec_s_test_centre/22196123-1-eng-GB/Expanding_ESTEC_s_Test_Centre_card_full.jpg 89855 45896
https://www.esa.int/var/esa/storage/images/esa_multimedia/images/2020/04/happy_siblings_using_table_in_the_kitchen/21941947-1-eng-GB/Happy_siblings_using_table_in_the_kitchen_pillars.jpg 311566 42978
https://www.esa.int/var/esa/storage/images/esa_multimedia/images/2019/10/education/21094107-3-eng-GB/Education_card_medium.jpg 60136 33948
https://www.esa.int/var/esa/storage/images/esa_multimedia/images/2019/10/kids/21093987-3-eng-GB/Kids_card_medium.jpg 51520 32320
https://www.esa.int/var/esa/storage/images/esa_multimedia/images/2019/10/our_missions/21109953-1-eng-GB/Our_missions_card_medium.jpg 71139 30002
https://www.esa.int/var/esa/storage/images/esa_multimedia/images/2019/10/earth_science/21133752-1-eng-GB/Earth_science_card_medium.jpg 63466 29800
https://www.esa.int/var/esa/storage/images/esa_multimedia/images/2019/08/a_sphere_of_colour/19653749-1-eng-GB/A_sphere_of_colour_card_medium.jpg 76533 29673
https://www.esa.int/var/esa/storage/images/esa_multimedia/images/2019/10/careers/21093729-4-eng-GB/Careers_card_medium.jpg 58621 28683
https://www.esa.int/var/esa/storage/images/esa_multimedia/images/2019/10/esa_web_tv/21107199-1-eng-GB/ESA_Web_TV_card_medium.jpg 55229 26791
https://www.esa.int/var/esa/storage/images/esa_multimedia/images/2019/10/esa_shop/21094027-4-eng-GB/ESA_Shop_card_medium.jpg 44314 25564
https://www.esa.int/var/esa/storage/images/esa_multimedia/images/2020/09/register_for_esa_s_ph-week_event/22190714-1-eng-GB/Register_for_ESA_s_Ph-Week_event_card_medium.jpg 62465 25563
https://www.esa.int/var/esa/storage/images/esa_multimedia/images/2020/09/cloud_cover_over_manila_bay/22188500-2-eng-GB/Cloud_cover_over_Manila_Bay_card_medium.jpg 45558 25433
https://www.esa.int/var/esa/storage/images/esa_multimedia/images/2020/09/backbone_of_a_spacecraft/22195323-1-eng-GB/Backbone_of_a_spacecraft_card_full.jpg 149982 24766
https://www.esa.int/var/esa/storage/images/esa_multimedia/images/2019/10/moon/21133712-1-eng-GB/Moon_card_medium.jpg 42111 19611
https://www.esa.int/var/esa/storage/images/esa_multimedia/images/2020/08/esa_open_day_estec_2020/22180657-1-eng-GB/ESA_Open_day_ESTEC_2020_card_medium.jpg 39332 17332
https://www.esa.int/var/esa/storage/images/esa_multimedia/images/2012/01/solar_flare_seen_by_esa_nasa_soho_satellite_23_january/9500230-4-eng-GB/Solar_flare_seen_by_ESA_NASA_SOHO_satellite_23_January_card_medium.jpg 39402 16902
https://www.esa.int/var/esa/storage/images/esa_multimedia/images/2019/10/esa_blog_navigator_link/21129844-2-eng-GB/ESA_blog_navigator_link_card_medium.jpg 34916 16166
https://www.esa.int/var/esa/storage/images/esa_multimedia/images/2019/10/business_with_esa/21093947-3-eng-GB/Business_with_ESA_card_medium.jpg 38182 15557
https://www.esa.int/var/esa/storage/images/esa_multimedia/images/2019/10/media/21094147-2-eng-GB/Media_card_medium.jpg 42034 14284
https://www.esa.int/var/esa/storage/images/esa_multimedia/images/2020/08/wind_turbines_on_a_green_hillside/22168409-1-eng-GB/Wind_turbines_on_a_green_hillside_card_medium.jpg 57587 11899
https://www.esa.int/var/esa/storage/images/esa_multimedia/images/2020/09/rainbow_comet_with_a_heart_of_sponge/22191729-1-eng-GB/Rainbow_comet_with_a_heart_of_sponge_card_full.jpg 81825 11333
https://www.esa.int/var/esa/storage/images/esa_multimedia/images/2019/10/this_is_esa/21109855-1-eng-GB/This_is_ESA_card_medium.jpg 29317 10567
https://www.esa.int/var/esa/storage/images/esa_multimedia/images/2010/01/kiruna_station/10244676-2-eng-GB/Kiruna_station_card_medium.jpg 34133 10445
https://www.esa.int/var/esa/storage/images/esa_multimedia/images/2015/06/jan_woerner/15492650-1-eng-GB/Jan_Woerner_card_medium.jpg 42379 8704
https://www.esa.int/var/esa/storage/images/esa_multimedia/images/2019/03/meteosat_third_generation/19292052-1-eng-GB/Meteosat_Third_Generation_card_medium.jpg 30893 6768
https://www.esa.int/var/esa/storage/images/esa_multimedia/videos/2020/09/advice_from_an_astronaut/22196031-3-eng-GB/Advice_from_an_astronaut_pillars.jpg 277588 6668
https://www.esa.int/var/esa/storage/images/esa_multimedia/videos/2020/09/advice_from_an_astronaut/22196031-3-eng-GB/Advice_from_an_astronaut_card_medium.jpg 33715 5965

Overall Saving: 640[ms], 757400[Bytes]

Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles.
Click here to learn how to optimize this
URL Transfer Size [Bytes] Potential Savings
https://www.esa.int/var/esa/cache/public/stylesheets/c35b41a32fb01cc5cc5a0efcc8ca483e_1592803662_all.css 13894 110
https://kit.fontawesome.com/b9c8f364cc.js 2730 230
https://code.jquery.com/jquery-2.2.4.min.js 30317 350
https://www.esa.int/var/esa/cache/public/javascript/ec3756e8a47adc0f64e3c43418bca85a_1593032267.js 36912 310

Overall Saving: 608[ms]

Speed Index shows how quickly the contents of a page are visibly populated.
Click here to learn how to optimize this
First Meaningful Paint measures when the primary content of a page is visible.
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First Contentful Paint marks the time at which the first text or image is painted.
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Time to interactive is the amount of time it takes for the page to become fully interactive.
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The maximum potential First Input Delay that your users could experience is the duration of the longest task.
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Consider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive.
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Overall Saving: 0[ms], 0[Bytes]

Remove dead rules from stylesheets and defer the loading of CSS not used for above-the-fold content to reduce unnecessary bytes consumed by network activity.
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Overall Saving: 0[ms], 0[Bytes]

First CPU Idle marks the first time at which the page's main thread is quiet enough to handle input.
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Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this.
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Category Time Spent
Style & Layout 285.07
Script Evaluation 226.47
Other 213.51
Rendering 78.39
Parse HTML & CSS 58.53
Script Parsing & Compilation 8.97
Consider using `` to prioritize fetching resources that are currently requested later in page load.
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Overall Saving: 0[ms]

Minifying JavaScript files can reduce payload sizes and script parse time.
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Overall Saving: 0[ms], 0[Bytes]

Redirects introduce additional delays before the page can be loaded.
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Text-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes.
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Overall Saving: 0[ms], 0[Bytes]

Estimated Input Latency is an estimate of how long your app takes to respond to user input, in milliseconds, during the busiest 5s window of page load. If your latency is higher than 50 ms, users may perceive your app as laggy.
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Minifying CSS files can reduce network payload sizes.
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Overall Saving: 0[ms], 0[Bytes]

Consider reducing the time spent parsing, compiling, and executing JS. You may find delivering smaller JS payloads helps with this.
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URL Total CPU Time Script Evaluation Script Parse
https://code.jquery.com/jquery-2.2.4.min.js 354.02 152.85 1.57
https://www.esa.int/ 224.1 8.53 1.57
Unattributable 188.86 11.88 0.14
https://www.esa.int/var/esa/cache/public/javascript/ec3756e8a47adc0f64e3c43418bca85a_1593032267.js 50.73 20.45 2.84

doc

# of requests: 1
Size: 54512 bytes

css

# of requests: 1
Size: 69017 bytes

js

# of requests: 5
Size: 285534 bytes

image

# of requests: 91
Size: 15265439 bytes

favicon

# of requests: 1
Size: 427 bytes

doc

# of requests: 1
Size: 54512 bytes

css

# of requests: 1
Size: 0 bytes

js

# of requests: 4
Size: 0 bytes
Type Url Size Response time Gzip Expires
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js https://kit-pro.fontawesome.com/releases/latest/js/pro-v4-shims.min.js 14868 532 14868 2020/9/13
js https://kit-pro.fontawesome.com/releases/latest/js/pro.min.js 39753 540 39753 2020/9/13
js https://code.jquery.com/jquery-2.2.4.min.js 85578 65 85578 2030/9/11
js http://www.esa.int/var/esa/cache/public/javascript/ec3756e8a47adc0f64e3c43418bca85a_1593032267.js 143461 45 143461 2020/9/13
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Webserver Info

California, Monrovia, United States Of America, 91016
IP: 157.185.144.20

Location

34.1428

Latitude

-118

Longitude

Whois

Created 1996-08-23
Changed 2009-03-19
Name Server dns1.esa.int (131.176.107.3)
dns2.esa.int (131.176.107.4)
dns3.esa.int (131.176.86.2)
dns4.esa.int (131.176.86.4)
dns5.esa.int (192.171.5.18)
dns6.esa.int (192.171.5.19)

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92 Domain Authority
117.6m Unique Domain Links
6.6m Outgong Links
22.2m External Links
2 Spam Score

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# Link
1 www.esa.int/
2 www.esa.int/ESA
3 www.esa.int/esaCP/index.html
4 www.esa.int/Our_Activities/Space_Science/Rosetta
5 www.esa.int/esl/ESA_in_your_country/Spain
6 www.esa.int/SPECIALS/Mars_Express/index.html
7 www.esa.int/Our_Activities/Space_Science/Planck
8 www.esa.int/Our_Activities/Space_Science/Mars_Express
9 www.esa.int/Applications/Observing_the_Earth/Copernicus/Sentinel-5P/Coronavirus_lockdown_leading_to_drop_in_pollution_across_Europe
10 www.esa.int/SPECIALS/Cassini-Huygens/index.html

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