Marsrovers.jpl.nasa.gov's functioning was analyzed 2 times within the 1 222 day time frame beginning April 10, 2023, as per records. Uptime checks indicate 2 instances of accessibility of marsrovers.jpl.nasa.gov, including on March 13, 2026, which returned a 200 status code. The tests carried out as of August 14, 2026, revealed no incidents of inoperability for marsrovers.jpl.nasa.gov. As of August 14, 2026, errors in the responses that were received have not been reported. On March 13, 2026, marsrovers.jpl.nasa.gov replied in 1.137 seconds, contrasting its average response time of 1.349 seconds.
| United States | 100.00% | ||||||||
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| Site | Total Checks | Last Modified |
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| 7 | March 23, 2021 | |
| 7 | February 17, 2026 | |
| 2 | April 10, 2023 | |
| 3 | March 22, 2026 | |
| 7 | September 23, 2024 |
Jasis.jp | Marsrovers.jpl.nasa.gov | ||||
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| Page Title | Page Title tips for marsrovers.jpl.nasa.gov: Quality over quantity reigns supreme in website title crafting; avoiding verbose constructions by forcibly constraining length under 60 characters pushes improved, focused attention on tightly edited title text delivering unambiguous meaning to searchers and search engines alike. |
|---|---|
| Mars Exploration Rovers: Spirit and Opportunity - NASA Science Length: 62 characters | |
| Meta Description | Meta Description tips for marsrovers.jpl.nasa.gov: A meta description exceeding the recommended character limit (typically 160-162) gets truncated in search results, potentially cutting off your message mid-sentence and reducing its effectiveness; adhere strictly to SEO recommendations for meta description length to guarantee your entire message is visible. |
| NASA’s Spirit and Opportunity rovers were identical twin robots who helped rewrite our understanding of the early history of Mars. Length: 136 characters | |
| Meta Keywords | Meta Keywords tips for marsrovers.jpl.nasa.gov: Search engines continuously evolve, and their emphasis remains firmly on the semantic understanding of content and relevance to user queries, factors entirely independent of the often-spammed meta keywords attribute. |
| no meta keywords data for marsrovers.jpl.nasa.gov 2026-08-14T21:14:49+00:00 | |
| Page Content | Page Content tips for marsrovers.jpl.nasa.gov: Regularly audit and update page content to maintain its accuracy and relevance over time, ensuring it continues to satisfy user intent as information evolves and search algorithms change. |
| Web Page Content Length: 219862 characters | |
| H1 Heading | H1 Heading tips for marsrovers.jpl.nasa.gov: Employ unique and descriptive H1 tags for each page, avoiding repetition to help search engines differentiate content clusters and individual page topics effectively. |
| Mars Exploration Rovers: Spirit and Opportunity Count: 1 heading tag | |
| H2 Headings | H2 Headings tips for marsrovers.jpl.nasa.gov: Analyze competitors' use of H2 headers to identify keyword opportunities and content structure best practices within your specific niche or industry vertical. |
| Suggested Searches Meet Spirit and Opportunity Mars Exploration Rovers In Depth Landing Sites Going the Distance Spirit and Opportunity News and Features Discover More Topics From NASA Count: 7 heading tag | |
| H3 Headings | H3 Headings tips for marsrovers.jpl.nasa.gov: Ensure your H3 tags are responsive and maintain their visual prominence across different device sizes, contributing to improved core web vitals scores which search engines increasingly factor into rankings. |
| 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 and 51 more... Count: 18 heading tag | |
| H4 Headings | H4 Headings tips for marsrovers.jpl.nasa.gov: Incorporating H4 tags within FAQ sections significantly improves the scannability of the content, enabling users to quickly find answers to common queries and aiding search engines in understanding the content's structure for potentially better snippet visibility. |
| no h4 headings data for marsrovers.jpl.nasa.gov 2026-08-14T21:14:49+00:00 | |
| H5-H6 Headings | H5-H6 Headings tips for marsrovers.jpl.nasa.gov: Always ensure your website's H5 and H6 headers accurately reflect the content beneath them, maintaining a clear connection between heading levels and the information they introduce |
| no h5-h6 headings data for marsrovers.jpl.nasa.gov 2026-08-14T21:14:49+00:00 | |
| Image ALT Attributes | Image ALT Attributes tips for marsrovers.jpl.nasa.gov: Write alt attributes in clear, straightforward language that accurately describes the image, focusing on its subject matter and function within the page layout, for improved accessibility. |
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| Robots.txt | Robots.txt tips for marsrovers.jpl.nasa.gov: To ensure compliance with search engine guidelines, always use the standard 'User-agent' and 'Disallow'/'Allow' directives in robots.txt for broad blocking, reserving other headers for more specific, bot-level directives where necessary. |
| file robots.txt was found on the website | |
| XML Sitemap | XML Sitemap tips for marsrovers.jpl.nasa.gov: XML sitemaps act as a crucial navigation tool for search engine bots, guiding them to prioritize important pages, potentially improving their ranking and visibility. |
| no xml sitemap data for marsrovers.jpl.nasa.gov 2026-08-14T21:14:49+00:00 | |
| Page Size | Page Size tips for marsrovers.jpl.nasa.gov: Incorporate responsive images with appropriate srcset and sizes attributes to serve appropriately sized images based on the user's device and screen size, drastically cutting down page load size and time. |
| page size: 215 kb | |
| Response Time | Response Time tips for marsrovers.jpl.nasa.gov: Consistently strive for response times measured in milliseconds by optimizing application architecture, upgrading server infrastructure if necessary, and utilizing efficient server-side frameworks designed for low-latency operations, which is a key factor in technical SEO assessments. |
| response time: 1.349 sec | |
| Minify CSS | Minify CSS tips for marsrovers.jpl.nasa.gov: Integrating CSS minification, which meticulously removes whitespace and comments, into your pre-production workflow is essential for delivering lean, high-performance CSS files that load quickly, satisfy users, and meet the performance benchmarks required for strong search rankings. |
| Minified: https://science.nasa.gov/_static/??-eJyFkFkOwjAMRC+EiUAs5QNxFic1bdRsipMWbk9oqYQogi/L1pvx2GIIoLxL5JJQRpcCNkMwudGOReahZrhGtDT42E29kFmbWnC6G+K1Yl6JN5NZ2mYpDQEHVASJCqp8IFHwSbkQppYssXDICKp9bnjb84sePRvjJRpw2P9FqS/TZfBPDGNJ0RNIdI7iXzz4kANY7L6w80/G26Txqpuf+GqaiL1Od7j6aIGspNfZoF1Nt6ffxZ43x8PutN8eq+oBvx6jcg== Unminified: //science.nasa.gov/wp-content/uploads/pum/pum-site-styles-1.css?generated=1753194533&ver=1.20.5 included in the page | |
| Minify JavaScript | Minify JavaScript tips for marsrovers.jpl.nasa.gov: For websites serving global audiences, JavaScript minification plays a vital role in reducing bandwidth usage and improving load times; consistently applying minification removes all unnecessary whitespace, comments, and formatting, delivering the smallest possible JavaScript payload to users regardless of their geographic location or connection speed, aiding SEO |
| 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://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/_static/??/wp-content/plugins/accessibility-checker-pro/build/frontendFixes.bundle.js,/wp-content/themes/nasa-child/build/main.js,/wp-includes/js/dist/dom-ready.min.js?m=1764952788j 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 marsrovers.jpl.nasa.gov: Using specific schema types such as Article, BlogPosting, or Review can help search engines recognize your content's structure, potentially leading to enhanced indexing, improved relevance signals, and eligibility for featured snippets or rich card displays that drive more organic traffic. |
| no structured data data for marsrovers.jpl.nasa.gov 2026-08-14T21:14:49+00:00 | |
| CDN Usage | CDN Usage tips for marsrovers.jpl.nasa.gov: Track CDN Usage statistics regularly through your analytics dashboard or vendor tools to monitor performance, validate caching effectiveness, optimize configuration, and identify resource-heavy static assets. |
| content is delivered via CDN | |
| SSL certificates | SSL certificates tips for marsrovers.jpl.nasa.gov: Implementing a valid SSL certificate across all pages prevents the "Not Secure" browser label from appearing, enhancing the perceived legitimacy of your site, improving user experience, and supporting SEO efforts significantly. |
| SSL is enabled on the website |
| Minimum Daily Unique Visitors: | 1 628 |
| Minimum Daily Visits: | 1 903 |
| Minimum Daily Page Views: | 3 277 |
| Minimum Monthly Unique Visitors: | 48 840 |
| Minimum Monthly Visits: | 57 090 |
| Minimum Monthly Page Views: | 98 310 |
| Minimum Yearly Unique Visitors: | 586 080 |
| Minimum Yearly Visits: | 685 080 |
| Minimum Yearly Page Views: | 1 179 720 |
| Maximum Daily Unique Visitors: | 2 060 |
| Maximum Daily Visits: | 2 197 |
| Maximum Daily Page Views: | 3 708 |
| Maximum Monthly Unique Visitors: | 61 800 |
| Maximum Monthly Visits: | 65 910 |
| Maximum Monthly Page Views: | 111 240 |
| Maximum Yearly Unique Visitors: | 741 600 |
| Maximum Yearly Visits: | 790 920 |
| Maximum Yearly Page Views: | 1 334 880 |
| Daily Revenue: | US$ 2 - 5 |
| Monthly Revenue: | US$ 60 - 150 |
| Yearly Revenue: | US$ 720 - 1 800 |
| Minimum: | US$ 1 080 |
| Maximum: | US$ 5 400 |
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