serlo.org
🖥 Status: up
🕒 Response Time: 0.450 sec
⬅️ Response Code: 200
According to records, during the 633 days that started on November 19, 2024, 26 uptime tests for serlo.org were performed. Serlo.org was online 26 times out of all checks performed, as shown by the code 200 response on the latest test conducted on July 1, 2026. As of August 14, 2026, no offline periods were found for serlo.org in inspections conducted. As of August 14, 2026, all responses have been error-free according to the replies received. On July 1, 2026, serlo.org's response time contrasted its average, being 0.450 seconds against 0.262 seconds.
26
Last Updated: July 1, 2026
Serlo overview
- Domain
- serlo.org
- Title
- Serlo – Die freie Lernplattform
- Description
- Die freie Lernplattform
- Main Topic
- Was möchtest du lernen ?
- E Site Status Rank
- 78 696
- Search Wikipedia
- serlo.org
- Alternatives
- alternatives to serlo.org
- Recently checked
- kozikaza.com
hankooktire.com
Last Updated: June 26, 2026
Status: error
Response Time: 5.643 sec
Response Code: 404
Serlo.org
status check request map as of August 14, 2026
Country report for serlo.org as of August 14, 2026
| United States | 100.00% | ||||||||
| 13:11 | |||||||||
| Site | Total Checks | Last Modified |
|---|---|---|
| 77 | November 12, 2020 | |
| 48 | May 9, 2024 | |
| 26 | November 19, 2024 | |
| 29 | December 31, 2018 | |
| 10 | December 11, 2024 |
Mapei.com | Serlo.org | ||||
|---|---|---|---|---|---|
General SEO Report
| Page Title | Page Title tips for serlo.org: Consider your website title as the most crucial on-page factor; research shows titles starting with the primary keyword perform best, maintain concise and compelling language under 60 characters to avoid truncation and maximize visibility in search engine result pages for improved user engagement. |
|---|---|
| Serlo – Die freie Lernplattform Length: 37 characters | |
| Meta Description | Meta Description tips for serlo.org: A well-crafted meta description significantly influences the click-through rate (CTR) from search engine result pages (SERPs), as it directly addresses user search intent, clearly states the page's purpose, includes essential keywords for visibility, and creates a compelling reason for users to select your listing over competitors. |
| Die freie Lernplattform Length: 23 characters | |
| Meta Keywords | Meta Keywords tips for serlo.org: To truly optimize for search intent and user needs, shift your keyword strategy away from the outdated meta tag towards comprehensive semantic search techniques, focusing on conversational language and user experience within your website's content. |
| no meta keywords data for serlo.org 2026-08-14T17:28:50+00:00 | |
| Page Content | Page Content tips for serlo.org: Ensure your website page content is meticulously researched and regularly updated to maintain accuracy and relevance, thereby boosting credibility and encouraging repeat visits from users. |
| Web Page Content Length: 106907 characters | |
| H1 Heading | H1 Heading tips for serlo.org: Formatting your H1 header clearly, both semantically through HTML code and visually through design, helps reinforce its importance to both search engines analyzing the page and users navigating content. |
| Was möchtest du lernen ? Count: 1 heading tag | |
| H2 Headings | H2 Headings tips for serlo.org: Ensure your H2 headers are mobile-responsive and maintain adequate clickability, as responsive design and good mobile UX are vital ranking factors that impact overall performance. |
| Mathematik Nachhaltigkeit Biologie Chemie Informatik Fächer im Aufbau Count: 6 heading tag | |
| H3 Headings | H3 Headings tips for serlo.org: Test different H3 header phrasing for a particular section using A/B testing methods to see which headlines generate higher click-through rates (CTR) from search results and better user engagement metrics on your site. |
| Wir sind eine große, ehrenamtliche Community und gestalten Serlo gemeinsam. Zusammen setzen wir uns für mehr Bildungsgerechtigkeit und die digitale Transformation unserer Schulen ein. Partner und Fördere Count: 3 heading tag | |
| H4 Headings | H4 Headings tips for serlo.org: When discussing detailed features, specifications, or steps within a larger tutorial or guide, incorporating relevant H4 headings helps users locate specific information quickly, reducing bounce rates and increasing the average time spent viewing content on your page. |
| no h4 headings data for serlo.org 2026-08-14T17:28:50+00:00 | |
| H5-H6 Headings | H5-H6 Headings tips for serlo.org: The semantic web standards place less emphasis on H5 and H6 compared to higher-level headings; therefore, their use should reflect a genuine need within the content's internal architecture rather than arbitrary formatting. |
| no h5-h6 headings data for serlo.org 2026-08-14T17:28:50+00:00 | |
| Image ALT Attributes | Image ALT Attributes tips for serlo.org: When optimizing website content for search engines, remember that descriptive and relevant ALT attributes provide valuable context about the visual elements, improving SEO ranking factors by explaining the image's subject matter or purpose to crawlers. |
| no image alt attributes data for serlo.org 2026-08-14T17:28:50+00:00 | |
| Robots.txt | Robots.txt tips for serlo.org: The robots.txt protocol, implemented via a simple text file at the root of your domain, serves as the primary mechanism for communicating crawl management directives to automated bots like Googlebot, enabling you to block certain content from indexing while ensuring other critical web pages for SEO are accessible. |
| file robots.txt was found on the website | |
| XML Sitemap | XML Sitemap tips for serlo.org: An XML sitemap provides explicit instructions for search engine bots on which URLs to fetch and prioritize, which ultimately aids in consistent indexation and ranking improvement efforts. |
| no xml sitemap data for serlo.org 2026-08-14T17:28:50+00:00 | |
| Page Size | Page Size tips for serlo.org: Large page sizes dramatically increase bounce rates because impatient users, especially on mobile, leave your site almost instantly if the content doesn't appear quickly on their small screens. |
| page size: 104 kb | |
| Response Time | Response Time tips for serlo.org: Regularly conduct performance audits using tools specifically designed to measure backend response times, identify optimization opportunities like excessive database queries, and implement fixes to maintain fast server performance. |
| response time: 0.262 sec | |
| Minify CSS | Minify CSS tips for serlo.org: Integrating robust CSS minification into your asset management strategy will automatically remove formatting and comments, shrinking file footprints considerably and speeding up page loads, which search engines like to see for Core Web Vitals and ranking potential, ultimately improving user engagement and conversion rates |
| Minified: /_next/static/css/c03869003d57564c.css included in the page | |
| Minify JavaScript | Minify JavaScript tips for serlo.org: The primary goal of website minification, especially for JavaScript, is to minimize the amount of code transferred over the network, directly addressing one of the core bottlenecks in web page loading speed and responsiveness, thereby enhancing user satisfaction. |
| Minified: /_assets/sentry/b7a5f46510b945b7a3a78c47c6a6048a.min.js /_next/static/chunks/polyfills-42372ed130431b0a.js /_next/static/chunks/webpack-4c773dd106ad0900.js /_next/static/chunks/framework-4df7ec4fa5048e71.js /_next/static/chunks/main-9aecaf629fb2ba61.js /_next/static/chunks/pages/_app-d9e7196f63a23dd3.js /_next/static/chunks/5089-2f9261013d54a647.js /_next/static/chunks/1364-19e7e56d8b13a979.js /_next/static/chunks/6577-aa243922e575c11b.js /_next/static/chunks/3306-35288c94afb50a19.js /_next/static/chunks/7057-70b3143b10959bcb.js /_next/static/chunks/pages/index-b1b94a36bc951987.js /_next/static/LQVALq_7dpxhDdOXSV0Av/_buildManifest.js /_next/static/LQVALq_7dpxhDdOXSV0Av/_ssgManifest.js https://sa.serlo.org/latest.js detected during site scan | |
| Structured Data | Structured Data tips for serlo.org: Integrating structured schema data directly improves search engine comprehension of your page's relevance and topicality for specific user queries, potentially increasing your chances of appearing in featured snippets or knowledge graph boxes. |
| no structured data data for serlo.org 2026-08-14T17:28:50+00:00 | |
| CDN Usage | CDN Usage tips for serlo.org: Employ a CDN to distribute your website's static content across multiple servers worldwide, significantly reducing latency and improving page load times for visitors accessing your site from various geographical regions. |
| no cdn usage data for serlo.org 2026-08-14T17:28:50+00:00 | |
| SSL certificates | SSL certificates tips for serlo.org: Investing in SSL certificate implementation is a cost-effective method to bolster your website security and enhance user trust; visitors are more likely to engage with and convert on your site if they perceive it as secure, which is further reinforced by modern browser security indicators and the improved SEO signals associated with HTTPS adoption. |
| SSL is enabled on the website |
Estimated Traffic
| Minimum Daily Unique Visitors: | 26 789 |
| Minimum Daily Visits: | 31 308 |
| Minimum Daily Page Views: | 53 901 |
| Minimum Monthly Unique Visitors: | 803 670 |
| Minimum Monthly Visits: | 939 240 |
| Minimum Monthly Page Views: | 1 617 030 |
| Minimum Yearly Unique Visitors: | 9 644 040 |
| Minimum Yearly Visits: | 11 270 880 |
| Minimum Yearly Page Views: | 19 404 360 |
| Maximum Daily Unique Visitors: | 33 890 |
| Maximum Daily Visits: | 36 149 |
| Maximum Daily Page Views: | 61 002 |
| Maximum Monthly Unique Visitors: | 1 016 700 |
| Maximum Monthly Visits: | 1 084 470 |
| Maximum Monthly Page Views: | 1 830 060 |
| Maximum Yearly Unique Visitors: | 12 200 400 |
| Maximum Yearly Visits: | 13 013 640 |
| Maximum Yearly Page Views: | 21 960 720 |
Estimated Valuation
| Daily Revenue: | US$ 39 - 87 |
| Monthly Revenue: | US$ 1 170 - 2 610 |
| Yearly Revenue: | US$ 14 040 - 31 320 |
Estimated Worth
| Minimum: | US$ 21 060 |
| Maximum: | US$ 93 960 |
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