July 5, 2021, was the start date for the 1 866 days during which helioviewer.org had 23 availability checks. Helioviewer.org was up 22 times out of all tests completed, with the latest uptime on June 23, 2026, returning a code 200. Helioviewer.org faced no inaccessibility based on all reviews performed as of August 14, 2026. The most recent error, which was coded as 500, took place on July 5, 2021, among 1 responses with errors. On June 23, 2026, 0.561 seconds contrasted with the 0.799 seconds average response time noted for helioviewer.org.
| Singapore | 100.00% | ||||||||
| 18:20 | |||||||||
| Site | Total Checks | Last Modified |
|---|---|---|
| 1 | January 24, 2025 | |
| 4 | February 5, 2023 | |
| 23 | July 5, 2021 | |
| 20 | June 27, 2021 | |
| 27 | January 1, 2022 |
Audioheritage.org | Helioviewer.org | ||||
|---|---|---|---|---|---|
| Page Title | Page Title tips for helioviewer.org: The website title's SEO effectiveness hinges significantly on its ability to incorporate high-value keywords near the front while remaining a concise, accurate summary of the page's core subject matter, directly connecting user intent to the provided content within the search engine results. |
|---|---|
| Helioviewer.org - Solar and heliospheric image visualization tool Length: 65 characters | |
| Meta Description | Meta Description tips for helioviewer.org: The meta description's primary function is conversion, aiming to persuade the searcher to click through the website based on the accurate and appealing preview offered, directly influencing the site's organic performance and visitor numbers. |
| Helioviewer.org - Solar and heliospheric image visualization tool Length: 65 characters | |
| Meta Keywords | Meta Keywords tips for helioviewer.org: To optimize your site for search engines, focus on naturally incorporating relevant target keywords within your page content, title tags, meta descriptions, and header text, rather than relying on outdated keyword meta tags that offer no benefit. |
| Helioviewer, JPEG 2000, JP2, sun, solar, heliosphere, solar physics, viewer, visualization, space, astronomy, SOHO, SDO, STEREO, AIA, HMI, EUVI, COR, EIT, LASCO, SDO, MDI, coronagraph,... Count: 24 words | |
| Page Content | Page Content tips for helioviewer.org: Integrate internal linking within your page content by strategically including links to other relevant pages or articles on your own website, improving site navigation, distributing link equity, and signaling topic importance. |
| Web Page Content Length: 45564 characters | |
| H1 Heading | H1 Heading tips for helioviewer.org: A well-chosen H1 heading, placed prominently just after the body tag in your HTML document, immediately informs visitors about the page's primary purpose or topic. |
| Helioviewer.org Helioviewer.org Observation Date Images Layer presets Features and Events Celestial Bodies Helioviewer Project News Movies Spanning Observation Date Recently Shared to YouTube Generate a Movie Generate a Screenshot Virtual Solar Observatory Request Viewport Images from VSO Request Image Sequence from VSO SDO AIA/HMI Cut-out Service Request Image Sequence from Cut-out Service Share Link to Current Viewport Share to Social Networks The Helioviewer Project Upload Video Count: 19 heading tag | |
| H2 Headings | H2 Headings tips for helioviewer.org: To optimize for search engines, ensure each H2 header directly relates to your main topic, incorporates secondary keywords effectively, and accurately represents the content contained within the subsequent paragraph or section. |
| no h2 headings data for helioviewer.org 2026-08-14T02:47:52+00:00 | |
| H3 Headings | H3 Headings tips for helioviewer.org: Regularly audit your website's H3 usage to ensure consistency in HTML structure and maintain a well-defined header hierarchy for improved technical SEO performance. |
| no h3 headings data for helioviewer.org 2026-08-14T02:47:52+00:00 | |
| H4 Headings | H4 Headings tips for helioviewer.org: Consistent and logical usage of the H4 header structure, like using it only for the next level of detail under H3 headings, maintains content organization and prevents the dilution of the header hierarchy. |
| no h4 headings data for helioviewer.org 2026-08-14T02:47:52+00:00 | |
| H5-H6 Headings | H5-H6 Headings tips for helioviewer.org: While H5-H6 tags offer flexibility for internal content organization, ensure they don't become a crutch by replacing the natural flow of ideas with an overabundance of heading elements, which dilutes semantic value. |
| no h5-h6 headings data for helioviewer.org 2026-08-14T02:47:52+00:00 | |
| Image ALT Attributes | Image ALT Attributes tips for helioviewer.org: Incorporating descriptive location or context within image ALT attributes can provide valuable SEO signals for geotargeting and local search, especially if the image depicts a local business or landmark, thereby enhancing local visibility and reach for your website effectively. |
| https://helioviewer.org/resources/images/mobile/images_icon1.png https://helioviewer.org/resources/images/mobile/events_icon1.png https://helioviewer.org/resources/images/mobile/celestial_icon2.png Count: 3 images with ALT attributes | |
| Robots.txt | Robots.txt tips for helioviewer.org: When defining disallow rules in your robots.txt, be specific and use exact URL paths or patterns (like `Disallow: /private/`) rather than overly generic wildcards (like `Disallow: *`) to prevent unintended blocking of valuable content and ensure precise control. |
| no robots.txt data for helioviewer.org 2026-08-14T02:47:52+00:00 | |
| XML Sitemap | XML Sitemap tips for helioviewer.org: The strategic value of an XML sitemap lies in its ability to provide explicit instructions to search engines, significantly improving crawl budget allocation and prioritizing the indexing of vital pages. |
| no xml sitemap data for helioviewer.org 2026-08-14T02:47:52+00:00 | |
| Page Size | Page Size tips for helioviewer.org: When developing new content or features, always prioritize performance by using lightweight, responsive image formats like WebP where appropriate, and ensure all code is minified before deployment to keep overall page size minimal. |
| page size: 44 kb | |
| Response Time | Response Time tips for helioviewer.org: Regularly review and update your hosting infrastructure, CDN, and application code to benefit from performance improvements and patches that often directly contribute to faster response times and more efficient resource usage. |
| response time: 0.799 sec | |
| Minify CSS | Minify CSS tips for helioviewer.org: Avoid bloated CSS files by rigorously applying minification techniques that strip out all formatting characters and comments, leading to faster website delivery, improved Core Web Vitals, and a higher likelihood of achieving better search engine rankings compared to sites with unminified CSS. |
| Minified: /resources/lib/yui-2.8.2r1/reset-fonts.css /resources/lib/jquery-ui-1.13.1/jquery-ui.min.css /resources/lib/jquery.jgrowl/jquery.jgrowl.min.css /resources/lib/jquery.qTip3/jquery.qtip.min.css /resources/lib/flatpickr/flatpickr.min.css?v=1691066119 /resources/lib/mediaelement/build/mediaelementplayer.min.css /resources/compressed/helioviewer.min.css?v=1763999688 Unminified: /resources/lib/jquery.imgareaselect-0.9.8/css/imgareaselect-default.css /resources/lib/DatetimePicker/jquery.datetimepicker.css /resources/lib/flatpickr/flatpickr.style.css?v=1691066119 /resources/lib/boneVojage/bonevojage.css /resources/css/dot-luv.css /resources/css/3d.css included in the page | |
| Minify JavaScript | Minify JavaScript tips for helioviewer.org: By consistently delivering minified JavaScript, website owners can enhance their SEO, as page speed has become a confirmed ranking factor used by search engines to evaluate user experience and site quality. |
| Minified: https://dap.digitalgov.gov/Universal-Federated-Analytics-Min.js?agency=NASA&subagency=GSFC&dclink=true /resources/lib/jquery/jquery-3.6.0.min.js /resources/lib/jquery-ui-1.13.1/jquery-ui.min.js /resources/lib/jquery.class/jquery.class.min.js /resources/lib/jquery.mousewheel/jquery.mousewheel.3.1.13.min.js /resources/lib/jquery.browser/dist/jquery.browser.min.js /resources/lib/jquery.qTip3/jquery.qtip.min.js /resources/lib/jquery-number-master/jquery.number.min.js /resources/lib/jquery.cookie/jquery.cookie.min.js /resources/lib/Cookiejar/jquery.cookiejar.pack.js /resources/lib/Highstock-4.2.1/js/highstock.js /resources/lib/Highstock-4.2.1/js/highcharts-more.js /resources/lib/jquery.jgrowl/jquery.jgrowl.min.js /resources/lib/jquery.imgareaselect-0.9.8/scripts/jquery.imgareaselect.pack.js /resources/lib/jquery.xml2json/jquery.xml2json.pack.js /resources/lib/flatpickr/flatpickr.min.js?v=1686603848 /resources/lib/mediaelement/build/mediaelement-and-player.min.js /resources/js/dist/HelioviewerModules.js?v=1763999675 /resources/compressed/helioviewer.min.js?v=1763999688 /resources/js/dist/hv3d.js?v=1750695034 Unminified: /resources/lib/jquery-ui-touch-punch/jquery.ui.touch-punch.js /resources/lib/jquery.json-2.3/jquery.json-2.3.min.js /resources/lib/custom_events-master/customEvents.js /resources/lib/jquery.jsTree-1.0rc/jquery.jstree.js /resources/lib/DatetimePicker/build/jquery.datetimepicker.full.js /resources/lib/boneVojage/jquery.bonevojage.js /resources/js/CustomHandling/CustomHandling.js?chrndnm=7072093 detected during site scan | |
| Structured Data | Structured Data tips for helioviewer.org: Schema markup acts as advanced metadata within your core content pages, instructing search engines like Google on the specific nature of the entities and information present, thereby enhancing content comprehension and enabling more informative search result displays. |
| no structured data data for helioviewer.org 2026-08-14T02:47:52+00:00 | |
| CDN Usage | CDN Usage tips for helioviewer.org: Regularly audit your website to identify and replace all direct image, CSS, and JavaScript file references with links pointing directly to your CDN-hosted versions for optimal performance and resource utilization across all pages. |
| no cdn usage data for helioviewer.org 2026-08-14T02:47:52+00:00 | |
| SSL certificates | SSL certificates tips for helioviewer.org: SSL protects against session hijacking and cross-site scripting (XSS) attacks by encrypting the communication channel, making it much harder for attackers to intercept or steal session cookies or other transmitted data between the user and the server. |
| SSL is enabled on the website |
| Minimum Daily Unique Visitors: | 2 682 |
| Minimum Daily Visits: | 3 134 |
| Minimum Daily Page Views: | 5 396 |
| Minimum Monthly Unique Visitors: | 80 460 |
| Minimum Monthly Visits: | 94 020 |
| Minimum Monthly Page Views: | 161 880 |
| Minimum Yearly Unique Visitors: | 965 520 |
| Minimum Yearly Visits: | 1 128 240 |
| Minimum Yearly Page Views: | 1 942 560 |
| Maximum Daily Unique Visitors: | 3 393 |
| Maximum Daily Visits: | 3 619 |
| Maximum Daily Page Views: | 6 107 |
| Maximum Monthly Unique Visitors: | 101 790 |
| Maximum Monthly Visits: | 108 570 |
| Maximum Monthly Page Views: | 183 210 |
| Maximum Yearly Unique Visitors: | 1 221 480 |
| Maximum Yearly Visits: | 1 302 840 |
| Maximum Yearly Page Views: | 2 198 520 |
| Daily Revenue: | US$ 4 - 9 |
| Monthly Revenue: | US$ 120 - 270 |
| Yearly Revenue: | US$ 1 440 - 3 240 |
| Minimum: | US$ 2 160 |
| Maximum: | US$ 9 720 |
| Rank | Points | |
|---|---|---|
| 384 934 | 5 780 497 | |
| 384 935 | 5 780 496 | |
| 384 936 | 5 780 496 | |
| 384 937 | 5 780 495 | |
| 384 938 | 5 780 495 | |
| 384 939 | 5 780 495 | |
| 384 940 | 5 780 494 | |
| 384 941 | 5 780 494 | |
| 384 942 | 5 780 493 | |
| 384 943 | 5 780 493 | |
| 384 944 | 5 780 492 |