The accessibility of addgene.org was reviewed 16 times over 582 days beginning January 9, 2025, as shown by the data. Out of every uptime test completed, addgene.org was accessible 16 times, most recently evidenced by the 200 status response on July 14, 2026. According to the checks, addgene.org experienced zero downtime as of August 14, 2026. There were no error responses reported as of August 14, 2026, according to the received replies. Contrary to the 0.279 seconds average response time, addgene.org's response on July 14, 2026, was 0.312 seconds.
| Russia | 100.00% | ||||||||
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| Site | Total Checks | Last Modified |
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| 47 | July 8, 2024 | |
| 36 | February 18, 2021 | |
| 16 | January 9, 2025 | |
| 30 | January 18, 2024 | |
| 11 | November 20, 2024 |
Greenbdnews.com | Addgene.org | ||||
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| Page Title | Page Title tips for addgene.org: A website title acts as the first impression in search results, making it vital to create clear, concise, keyword-rich, and highly relevant titles that directly address user search queries and accurately summarize the page's unique value proposition and specific niche focus for maximum click-through potential. |
|---|---|
| Addgene: A better way to share science Length: 38 characters | |
| Meta Description | Meta Description tips for addgene.org: Search engine result pages offer limited space for real estate to convince users to click through, making the meta description copy crucial for grabbing attention quickly; write concise (under 160 characters), benefit-driven text that mirrors how users search for terms like "website SEO meta description" and clearly defines the page's purpose. |
| Addgene, the nonprofit plasmid repository, accelerates science by sharing useful plasmid-based research materials, viral preps, and information worldwide. Length: 154 characters | |
| Meta Keywords | Meta Keywords tips for addgene.org: For website owners, the practical takeaway regarding the meta keywords tag is simple: stop worrying about its content as search engines largely ignore it, and instead invest in producing genuinely useful, informative, and engaging website copy. |
| no meta keywords data for addgene.org 2026-08-14T18:47:30+00:00 | |
| Page Content | Page Content tips for addgene.org: Employ a user-centric approach for page content creation, focusing on readability, clarity, and addressing the specific questions and concerns of your target demographic to build trust and credibility from the outset. |
| Web Page Content Length: 116946 characters | |
| H1 Heading | H1 Heading tips for addgene.org: For mobile users accessing your content, the H1 tag's clear presentation at the top simplifies quick scanning on smaller screens, ensuring your core message is instantly visible even in limited viewports. |
| A Better Way to Share Science Count: 1 heading tag | |
| H2 Headings | H2 Headings tips for addgene.org: Alt text attributes on H2 elements, when images are used as headings, should accurately describe the visual content and reinforce keyword semantics, although pure text H2s are generally preferred for core content structuring and SEO benefits. |
| What's New About Addgene Scientists Addgene Tools of the Day Sign Up for Our Newsletter Subscribe to Our Blog Contact Addgene Addgene is a nonprofit plasmid repository. Count: 8 heading tag | |
| H3 Headings | H3 Headings tips for addgene.org: H3 tags are essential for mobile-first design responsiveness; ensure they contribute to a clean, easily scannable layout on various device sizes without causing content overflow or layout issues. |
| Plasmid Viral Prep Antibody We store and distribute high-quality plasmids from your colleagues. About Our Repository Browse Our Catalog Education Tools Addgene Website Feedback Count: 9 heading tag | |
| H4 Headings | H4 Headings tips for addgene.org: When creating tutorial or how-to content, break down complex processes into stages, using H4 headers to label each individual step, thereby improving content clarity and search intent matching for instructional queries. |
| Help Center Deposit Plasmids General Reagents Viral Service DNA Service Plasmid Collections Count: 6 heading tag | |
| H5-H6 Headings | H5-H6 Headings tips for addgene.org: H5 tags should be used for content that requires deeper specification, like subsections within a technical tutorial, enhancing SEO by providing clearer topic context than H4 alone. |
| no h5-h6 headings data for addgene.org 2026-08-14T18:47:30+00:00 | |
| Image ALT Attributes | Image ALT Attributes tips for addgene.org: When using images for links, the alt text should clearly describe the linked content and destination, acting as an anchor text substitute that improves both usability and search relevance. |
| no image alt attributes data for addgene.org 2026-08-14T18:47:30+00:00 | |
| Robots.txt | Robots.txt tips for addgene.org: Never use a blank robots.txt file (no directives) if it is located, as this can inadvertently block all bots from accessing the entire website root directory, severely hindering indexing. |
| file robots.txt was found on the website | |
| XML Sitemap | XML Sitemap tips for addgene.org: The correct XML sitemap format is essential for search engines; ensure your sitemap adheres strictly to the sitemap protocol (XML Schema Definition) to avoid parsing errors and ensure reliable indexing across all relevant pages. |
| no xml sitemap data for addgene.org 2026-08-14T18:47:30+00:00 | |
| Page Size | Page Size tips for addgene.org: Mobile users often abandon pages that aren't mobile-friendly; ensuring fast load times by keeping overall page size small is essential for maintaining engagement and lower exit rates. |
| page size: 114 kb | |
| Response Time | Response Time tips for addgene.org: Employ efficient server configurations and code practices to ensure minimal latency, resulting in faster server response times that directly contribute to lower bounce rates and better user engagement metrics. |
| response time: 0.279 sec | |
| Minify CSS | Minify CSS tips for addgene.org: CSS minification is a critical performance optimization technique; by eliminating all redundant spaces, tabs, and comments from your Cascading Style Sheets, you ensure faster page rendering across all devices, leading to better user engagement metrics and improved search engine visibility. |
| Unminified: https://static.addgene.org/addgene-core/e5ff02ab3a/public-base/sitewide.scss.post.css https://static.addgene.org/addgene-core/e5ff02ab3a/public-base/page-homepage.scss.post.css https://static.addgene.org/addgene-core/e5ff02ab3a/search/suggester.scss.post.css https://static.addgene.org/addgene-core/e5ff02ab3a/search/search-bar.scss.post.css https://static.addgene.org/addgene-core/e5ff02ab3a/search/search-by-sequence-bar.scss.post.css https://static.addgene.org/addgene-core/e5ff02ab3a/public-base/modal-enable.scss.post.css https://static.addgene.org/addgene-core/e5ff02ab3a/search/blast-info-modal.scss.post.css https://static.addgene.org/addgene-core/e5ff02ab3a/public-base/homepage-ui-component-testimonial-card.scss.post.css https://static.addgene.org/addgene-core/e5ff02ab3a/ui-components/lazy-load-content.public.scss.post.css https://static.addgene.org/addgene-core/e5ff02ab3a/public-base/homepage-ui-component-tool-of-the-day.scss.post.css https://static.addgene.org/addgene-core/e5ff02ab3a/public-base/feedback-campaign.scss.post.css https://static.addgene.org/addgene-core/e5ff02ab3a/public-base/footer.scss.post.css https://static.addgene.org/addgene-core/e5ff02ab3a/deps/awesomplete/awesomplete.css https://static.addgene.org/addgene-core/e5ff02ab3a/deps/awesomplete/awesomplete.theme.css included in the page | |
| Minify JavaScript | Minify JavaScript tips for addgene.org: Minifying JavaScript isn't just a minor optimization detail; it's a significant factor influencing Core Web Vitals and SEO performance, achieved by systematically eliminating unnecessary code, whitespace, and syntax, thereby accelerating page load times significantly. |
| Minified: https://static.addgene.org/addgene-core/e5ff02ab3a/vendor/js/htmx.min.js https://challenges.cloudflare.com/turnstile/v0/api.js?compat=recaptcha /cdn-cgi/scripts/5c5dd728/cloudflare-static/email-decode.min.js https://static.cloudflareinsights.com/beacon.min.js/vcd15cbe7772f49c399c6a5babf22c1241717689176015 Unminified: https://static.addgene.org/addgene-core/e5ff02ab3a/deps/require.js https://static.addgene.org/addgene-core/e5ff02ab3a/web-base/requirejs-configuration.m.js detected during site scan | |
| Structured Data | Structured Data tips for addgene.org: Structured Schema Markup acts as an enhanced metadata vocabulary, allowing webmasters to explicitly define critical entity types like articles, products, or events directly within the HTML source code, significantly aiding search engines in understanding context-specific content beyond basic HTML analysis. |
| no structured data data for addgene.org 2026-08-14T18:47:30+00:00 | |
| CDN Usage | CDN Usage tips for addgene.org: Employ a Content Delivery Network to effectively distribute your website's static and semi-static content across numerous edge nodes worldwide, ensuring reliable low-latency delivery even during periods of high user traffic and preventing server overload. |
| content is delivered via CDN | |
| SSL certificates | SSL certificates tips for addgene.org: Migrating your entire website to HTTPS via a trusted SSL certificate is crucial for establishing a secure connection and meeting Google's core web vitals requirements, which now heavily factor into search rankings and significantly boost user trust by displaying the secure padlock icon in browsers. |
| SSL is enabled on the website |
| Minimum Daily Unique Visitors: | 43 294 |
| Minimum Daily Visits: | 50 596 |
| Minimum Daily Page Views: | 87 109 |
| Minimum Monthly Unique Visitors: | 1 298 820 |
| Minimum Monthly Visits: | 1 517 880 |
| Minimum Monthly Page Views: | 2 613 270 |
| Minimum Yearly Unique Visitors: | 15 585 840 |
| Minimum Yearly Visits: | 18 214 560 |
| Minimum Yearly Page Views: | 31 359 240 |
| Maximum Daily Unique Visitors: | 54 769 |
| Maximum Daily Visits: | 58 420 |
| Maximum Daily Page Views: | 98 584 |
| Maximum Monthly Unique Visitors: | 1 643 070 |
| Maximum Monthly Visits: | 1 752 600 |
| Maximum Monthly Page Views: | 2 957 520 |
| Maximum Yearly Unique Visitors: | 19 716 840 |
| Maximum Yearly Visits: | 21 031 200 |
| Maximum Yearly Page Views: | 35 490 240 |
| Daily Revenue: | US$ 63 - 141 |
| Monthly Revenue: | US$ 1 890 - 4 230 |
| Yearly Revenue: | US$ 22 680 - 50 760 |
| Minimum: | US$ 34 020 |
| Maximum: | US$ 152 280 |
| Rank | Points | |
|---|---|---|
| 22 249 | 5 537 700 | |
| 22 250 | 5 537 700 | |
| 22 251 | 5 537 700 | |
| 22 252 | 5 537 699 | |
| 22 253 | 5 537 699 | |
| 22 254 | 5 537 698 | |
| 22 255 | 5 537 698 | |
| 22 256 | 5 537 698 | |
| 22 257 | 5 537 697 | |
| 22 258 | 5 537 697 | |
| 22 259 | 5 537 696 |