During the 148 day period from March 19, 2026, availability of jwst.nasa.gov was checked 1 times. Jwst.nasa.gov functioned successfully 1 times in total checks performed, the last occurrence noted on March 19, 2026, returning a 200 status code. As of August 14, 2026, the checks indicate that there was no downtime for jwst.nasa.gov. There have been no error status codes in any responses as of August 14, 2026, according to all received replies. On March 19, 2026, data reveals a 0.662 seconds jwst.nasa.gov response against 0.662 seconds averagely.
| United States | 100.00% | ||||||||
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| Site | Total Checks | Last Modified |
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| 2 | June 24, 2026 | |
| 2 | September 7, 2023 | |
| 1 | March 19, 2026 | |
| 1 | April 11, 2026 | |
| 1 | August 14, 2026 |
Watchdbs.xyz | Jwst.nasa.gov | ||||
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| Page Title | Page Title tips for jwst.nasa.gov: Keyword placement experts often stress the significance of including primary keywords near the H1 element for amplified impact then maintaining a balance between optimization technicalities and human-centric readability preventing titles that sound artificially stuffed alienating genuine visitors reducing conversion opportunities ironically. |
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| James Webb Space Telescope - NASA Science Length: 41 characters | |
| Meta Description | Meta Description tips for jwst.nasa.gov: Duplicate meta descriptions pose a significant problem, leading to inconsistent SEO signals and visibility issues; always verify that each page has a unique, page-specific description optimised for its own long-tail keyword targeting. |
| Space Telescope Length: 15 characters | |
| Meta Keywords | Meta Keywords tips for jwst.nasa.gov: Incorporate a holistic keyword strategy that replaces rigid meta tag reliance, emphasizing natural use of language patterns in content writing, coupled with technical website optimization and link building efforts, for dependable results. |
| no meta keywords data for jwst.nasa.gov 2026-08-14T12:24:05+00:00 | |
| Page Content | Page Content tips for jwst.nasa.gov: Create detailed page content consistently by following a strategic pillar page approach, ensuring major topics are naturally covered with necessary depth, contextualizing intimate niche knowledge within broader frameworks effectively. |
| Web Page Content Length: 277883 characters | |
| H1 Heading | H1 Heading tips for jwst.nasa.gov: The H1 header tag's fundamental role cannot be overstated when considering SEO - implementing it correctly with relevant, descriptive language is one of the most actionable micro-seo wins for website publishers needing quick wins. |
| James Webb Space Telescope Count: 1 heading tag | |
| H2 Headings | H2 Headings tips for jwst.nasa.gov: Differentiating between various H2 headings through subtle styling (like different colors or weights) can indicate relative importance within the section, aiding content comprehension quickly. |
| Suggested Searches Key Facts Featured Image Webb First to Show 4 Dust Shells ‘Spiraling’ Apep, Limits Long Orbit Latest News Webb's Blog Latest 2025 Images More Webb Images Images 2024 First Images About Webb Images What is Webb Observing? The Webb Mission Webb's Science Goals The Spacecraft The International Webb Team Discover More Topics From NASA Count: 17 heading tag | |
| H3 Headings | H3 Headings tips for jwst.nasa.gov: H3 tags are crucial for improving user engagement metrics like time-on-page and click-through rates by providing clear navigational cues through visually distinct and logically ordered content divisions. |
| News & Events Multimedia Highlights NASA Tests Drones in Death Valley, Preps for Martian Sands and Skies Sugars, ‘Gum,’ Stardust Found in NASA’s Asteroid Bennu Samples NASA’s Roman Observatory Passes Spate of Key Tests Missions Humans in Space Earth The Solar System The Universe Science Aeronautics Technology Learning Resources About NASA NASA en Español CHAPEA Crew Begins Stay Inside NASA’s Mars Habitat for Second Mission NASA’s 2025 Astronaut Candidates: Shaping Artemis Exploration NASA Selects 2 Instruments for Artemis IV Lunar Surface Science NASA Astronaut Jonny Kim Advances Research Aboard Space Station and 42 more... Count: 22 heading tag | |
| H4 Headings | H4 Headings tips for jwst.nasa.gov: Content pillar optimization often requires deep segmentation using various header levels, including H4, to comprehensively cover all aspects of broad keyword themes. |
| no h4 headings data for jwst.nasa.gov 2026-08-14T12:24:05+00:00 | |
| H5-H6 Headings | H5-H6 Headings tips for jwst.nasa.gov: Comparative reviews listing detailed specifications across platforms can benefit from H5 subheadings to group related metrics or performance points under category headings, like benchmark scores orresolution specs |
| no h5-h6 headings data for jwst.nasa.gov 2026-08-14T12:24:05+00:00 | |
| Image ALT Attributes | Image ALT Attributes tips for jwst.nasa.gov: The Image ALT attribute significantly impacts search engine visibility and image ranking in results; ensure each attribute is descriptive and relevant to the page topic for maximizing SEO benefits. |
| https://science.nasa.gov/wp-content/themes/nasa-child/assets/images/nasa-logo@2x.png https://www.nasa.gov/wp-content/uploads/2025/12/1-pia26674-researchers-test-mars-drone-software-in-death-valley-web.jpg?w=1024 https://www.nasa.gov/wp-content/uploads/2025/11/orex-022.jpg?w=1024 https://www.nasa.gov/wp-content/uploads/2025/11/scipa-lift-out-of-ses-chamber-and-air-pad-into-ssdif-141.jpg?w=1024 https://www.nasa.gov/wp-content/uploads/2025/11/chapeamission2-crew.png?w=1024 https://www.nasa.gov/wp-content/uploads/2025/11/jsc2025e076421.jpg?w=1024 https://assets.science.nasa.gov/dynamicimage/assets/science/psd/planetary-science-division/2025/LunarSouthPoleHeader.png?w=1024 https://images-assets.nasa.gov/image/iss073e0027778/iss073e0027778~large.jpg?w=1920&h=1280&fit=clip&crop=faces%2Cfocalpoint https://assets.science.nasa.gov/dynamicimage/assets/science/esd/eo/images/iotd/2025/senyar-swamps-sumatra/seasiaflooding_oli2_20251130_th.jpg?w=1024 https://assets.science.nasa.gov/dynamicimage/assets/science/esd/eo/images/iotd/2025/hayli-gubbi’s-explosive-first-impression/ethiopia_hayligubbi_amo_20251123_th.jpg?w=1024 https://assets.science.nasa.gov/dynamicimage/assets/science/cds/general/images/2023/06/c/camp-landsat-logo-thumbnail-card-grid.png?w=1024 https://images-assets.nasa.gov/image/NHQ202404080107/NHQ202404080107~orig.jpg?w=1049&h=867&fit=clip&crop=faces%2Cfocalpoint https://assets.science.nasa.gov/dynamicimage/assets/science/cds/general/images/2023/04/w/waveBehaviors_thumb.png?w=1024 https://assets.science.nasa.gov/dynamicimage/assets/science/missions/hubble/galaxies/spiral/Hubble_NGC1792_potw2548a.jpg?w=1024 https://assets.science.nasa.gov/dynamicimage/assets/science/cds/general/images/2024/09/6-astrophysics-main-cassiopeia-a.jpg?w=1024 https://www.nasa.gov/wp-content/uploads/2025/12/complete.jpg?w=1024 https://assets.science.nasa.gov/dynamicimage/assets/science/psd/solar-system/skywatching/2025/november/Jupiter%20higher_credit_Bill%20Dunford_CC%20BY-NC%202.0.jpg?w=1024 https://images-assets.nasa.gov/image/AFRC2025-0168-038/AFRC2025-0168-038~large.jpg?w=1920&h=1280&fit=clip&crop=faces%2Cfocalpoint https://www.nasa.gov/wp-content/uploads/2025/09/img-3738.jpg?w=1024 https://www.nasa.gov/wp-content/uploads/2025/09/acd25-132-006.jpg?w=1024 and 27 more... Count: 21 images with ALT attributes | |
| Robots.txt | Robots.txt tips for jwst.nasa.gov: Remember that robots.txt is a voluntary protocol, and some resource-intensive web crawlers (like those scraping images or videos) might ignore your directives entirely, potentially leading to misuse or performance degradation on your website, so proactive strategies like server-side rate limiting or IP blocking mechanisms (e.g., Cloudflare WAF rules) are needed alongside a meticulously written robots.txt file. |
| file robots.txt was found on the website | |
| XML Sitemap | XML Sitemap tips for jwst.nasa.gov: Careful management and updates of your XML sitemap structure are fundamental SEO best practices for sustained success, necessitating regular modifications whenever new pages are published, existing content is updated, or the site's topology experiences significant shifts, ensuring search engines always possess the most accurate and current inventory of all accessible web pages. |
| no xml sitemap data for jwst.nasa.gov 2026-08-14T12:24:05+00:00 | |
| Page Size | Page Size tips for jwst.nasa.gov: Different browsers may render pages, but they generally calculate transfer sizes similarly using the same underlying data, ensuring consistent page size metrics across user agents. |
| page size: 271 kb | |
| Response Time | Response Time tips for jwst.nasa.gov: Search engines factor in Core Web Vitals, including Largest Contentful Paint and Cumulative Layout Shift, which are strongly linked to total response time delays, pushing content below the fold, making page speed optimization a key SEO tactic for sustained visibility |
| response time: 0.662 sec | |
| Minify CSS | Minify CSS tips for jwst.nasa.gov: Efficiency is increased exponentially by routinely using CSS minification techniques to remove all redundant code, unused variables, and soft spaces, ensuring your main stylesheet loads quickly, drastically improving user-perceived performance and key SEO signals like Core Web Vitals. |
| Minified: https://science.nasa.gov/_static/??-eJyFkFluwzAMRC9UVkjRLP0oehZKYmzB1AJRspvbV4ljIGvzRZB4MyRHTQlMDIVCUYZdK+ArJK6dC6KqTFZgn9HTFPMw90pXx1ZJOTDJuxF5Uxcmi7SvWjOBJDQEhRpqYiLV8Fl5Jyw9eRIVUBBMf9xwsec/+uTZcdTIEHB8idLYpveH32KY2xUjgcYQKL/EU0w1gcfhAbtkIt6C5miGJcMzAOykzI+CC5Z+nzqc0rmyODddxtGVA+xj9kBek731+/Hfq+3m82v9sd3t/gCr9LyZ Unminified: //science.nasa.gov/wp-content/uploads/pum/pum-site-styles-1.css?generated=1753194533&ver=1.20.5 https://science.nasa.gov/wp-content/plugins/nasa-blocks/assets/slick/slick.css?m=1764609500g included in the page | |
| Minify JavaScript | Minify JavaScript tips for jwst.nasa.gov: When searching with specific keywords like JavaScript optimization or web performance, Google consistently favors domains demonstrating impactful technical SEO actions like effective minification and compression techniques, resulting in demonstrably faster load times for users, as quantifiable improvements in metrics such as Time to Interactive (TTI) directly correlate with enhanced user dwell time and reduced exit intent. |
| Minified: https://www.google.com/recaptcha/api.js https://dap.digitalgov.gov/Universal-Federated-Analytics-Min.js?agency=NASA&pua=G-3MLXXCVWWY&subagency==GSFC&yt=true&dclink=true&sp=search,s,q&sdor=false&exts=tif,tiff&pga4=G-82GWVTTXCZ https://embedr.flickr.com/assets/client-code.js https://science.nasa.gov/wp-includes/js/dist/vendor/react.min.js?ver=18.3.1.1 https://science.nasa.gov/wp-includes/js/dist/vendor/react-dom.min.js?ver=18.3.1.1 https://science.nasa.gov/wp-includes/js/dist/hooks.min.js?ver=4d63a3d491d11ffd8ac6 https://science.nasa.gov/wp-includes/js/dist/i18n.min.js?ver=5e580eb46a90c2b997e6 https://science.nasa.gov/wp-content/plugins/wp-parsely/build/loader.js?ver=ecf94842061bea03d54b https://cdn.parsely.com/keys/science.nasa.gov/p.js?ver=3.20.7 https://science.nasa.gov/wp-content/plugins/accessibility-checker/build/frontendFixes.bundle.js?ver=1.31.0 https://science.nasa.gov/wp-includes/js/dist/a11y.min.js?ver=3156534cc54473497e14 https://science.nasa.gov/wp-content/plugins/gravityforms/js/gravityforms.min.js?ver=2.9.13 //science.nasa.gov/wp-content/uploads/pum/pum-site-scripts-1.js?defer&generated=1753194535&ver=1.20.5 detected during site scan | |
| Structured Data | Structured Data tips for jwst.nasa.gov: Authorship schema historically helped identify creators, linking content directly to influencing figures; while search engines might prioritize universal methods now, foundational trust remains relevant. |
| no structured data data for jwst.nasa.gov 2026-08-14T12:24:05+00:00 | |
| CDN Usage | CDN Usage tips for jwst.nasa.gov: The impact of effective CDN configuration extends beyond mere speed improvements to fundamentally shape user perceptions about website quality and professionalism; consistently fast loading experiences foster trust and encourage exploration, increasing average visit duration and reducing bounce rates - all positive SEO signals highly valued by search engines seeking to surface authoritative and user-centric content. |
| content is delivered via CDN | |
| SSL certificates | SSL certificates tips for jwst.nasa.gov: Technical SEO best practices unequivocally point towards adopting core website security via SSL. Implementing an SSL certificate across all pages ensures compliance with latest Google standards and algorithms promoting secure browsing. |
| SSL is enabled on the website |
| Minimum Daily Unique Visitors: | 1 252 |
| Minimum Daily Visits: | 1 463 |
| Minimum Daily Page Views: | 2 518 |
| Minimum Monthly Unique Visitors: | 37 560 |
| Minimum Monthly Visits: | 43 890 |
| Minimum Monthly Page Views: | 75 540 |
| Minimum Yearly Unique Visitors: | 450 720 |
| Minimum Yearly Visits: | 526 680 |
| Minimum Yearly Page Views: | 906 480 |
| Maximum Daily Unique Visitors: | 1 583 |
| Maximum Daily Visits: | 1 689 |
| Maximum Daily Page Views: | 2 850 |
| Maximum Monthly Unique Visitors: | 47 490 |
| Maximum Monthly Visits: | 50 670 |
| Maximum Monthly Page Views: | 85 500 |
| Maximum Yearly Unique Visitors: | 569 880 |
| Maximum Yearly Visits: | 608 040 |
| Maximum Yearly Page Views: | 1 026 000 |
| Daily Revenue: | US$ 2 - 4 |
| Monthly Revenue: | US$ 60 - 120 |
| Yearly Revenue: | US$ 720 - 1 440 |
| Minimum: | US$ 1 080 |
| Maximum: | US$ 4 320 |
| Rank | Points | |
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| 1 077 194 | 7 164 076 | |
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| 1 077 201 | 7 164 072 | |
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| 1 077 203 | 7 164 071 | |
| 1 077 204 | 7 164 071 |