21ic.com
🖥 Status: up
🕒 Response Time: 3.475 sec
⬅️ Response Code: 200
From February 9, 2021, through the past 2 011 days, the availability of 21ic.com has been checked 33 times. Out of all tests attempted, 21ic.com was working 32 times, with the last instance on June 7, 2026, replying with a 200 status code. The checks conducted as of August 13, 2026, did not find any downtime issues related to 21ic.com. The most current error code among the 1 responses that had errors was code 403, which was detected on July 29, 2025. At 3.475 seconds, 21ic.com's response time on June 7, 2026, differed from the 4.360 seconds average.
33
Last Updated: June 7, 2026
21ic overview
- Domain
- 21ic.com
- Title
- 21IC电子网 - 电子工程师的优选网站
- Description
- 21IC电子网，电子工程师的优选网站(嵌入式,单片机,DSP,EDA,测试测量,元器件,医疗电子,智能电网)
- I Site Status Rank
- 10 082
- Search Wikipedia
- 21ic.com
- Alternatives
- alternatives to 21ic.com
- Recently checked
- orgyxxxhub.com
protect-your-privacy-now.com
Last Updated: June 26, 2026
Status: down
Response Time: — sec
Response Code: —
21ic.com
status check request map as of August 13, 2026
Country report for 21ic.com as of August 13, 2026
| United States | 100.00% | ||||||||
| 19:33 | |||||||||
| Site | Total Checks | Last Modified |
|---|---|---|
| 28 | June 26, 2022 | |
| 42 | January 26, 2021 | |
| 33 | February 9, 2021 | |
| 21 | November 17, 2024 | |
| 32 | July 26, 2021 |
Xiaomitoday.it | 21ic.com | ||||
|---|---|---|---|---|---|
General SEO Report
| Page Title | Page Title tips for 21ic.com: Understanding the technical requirements for your website title is crucial: aim for a character count of 50-60 characters maximum, place your core keyword phrase within the first few words, and ensure the title accurately mirrors the page content to satisfy both search engine crawlers looking for semantic relevance and users seeking clear relevance for their informational or commercial intent. |
|---|---|
| 21IC电子网 - 电子工程师的优选网站 Length: 46 characters | |
| Meta Description | Meta Description tips for 21ic.com: Meta descriptions are a powerful element of on-page SEO, providing the last opportunity to capture attention before users scroll past your listing in the dense search results |
| 21IC电子网，电子工程师的优选网站(嵌入式,单片机,DSP,EDA,测试测量,元器件,医疗电子,智能电网) Length: 124 characters | |
| Meta Keywords | Meta Keywords tips for 21ic.com: Effectively managing meta keywords requires understanding that their historical role in search ranking is obsolete; modern SEO focuses on creating high-quality, relevant content and ensuring semantic keyword usage throughout your website copy, internal linking structure, and schema markup, which provide much stronger signals to search engines like Google than any standalone keyword meta tag. |
| no meta keywords data for 21ic.com 2026-08-13T22:25:02+00:00 | |
| Page Content | Page Content tips for 21ic.com: Employ clear, concise, and persuasive language within page content, ensuring the message is easily understood by the target audience and optimized for conversion goals. |
| Web Page Content Length: 142856 characters | |
| H1 Heading | H1 Heading tips for 21ic.com: Using an H1 header allows web content creators to strategically emphasize the main title or focus of their page directly within the HTML structure, guiding readers through the content hierarchy. |
| no h1 heading data for 21ic.com 2026-08-13T22:25:02+00:00 | |
| H2 Headings | H2 Headings tips for 21ic.com: Integrate visual elements like images or infographics under well-defined H2 subheadings to enhance engagement, clarify complex concepts visually, and improve content comprehension. |
| 电子技术子站 电子技术专栏 电子技术专访 电子技术论坛 电子技术公开课 电子技术资料下载 电子技术直播短视频 电子项目外包交易平台 电子工程师问答网站 21ic钱包 Count: 10 heading tag | |
| H3 Headings | H3 Headings tips for 21ic.com: To improve content readability scores, utilize H3 headers to segment text effectively, preventing wall-of-text scenarios that can deter readers and negatively impact dwell time metrics. |
| 市占率达34.8%！三星第三季度DRAM销量重夺市场第一 雷军发长文庆祝小米汽车第50万辆下线 承诺做好三件事 吉利资本领投！星动纪元斩获近10亿A+轮融资 英伟达耀眼业绩打飞“AI泡沫” 黄仁勋：云端GPU卖光了 iPhone Fold已正式定型：全球首发无折痕屏幕技术 安谋科技Arm China发布全新“周易” X3 NPU：算力高达80 FP8 TFLOPS iPhone 17系列首发自研N1芯片：Wi-Fi速度超越上代iPhone 16 Gemini 3 Pro登顶 谷歌涨超5% 市值再创历史新高 理想内部承认低估小米！将全面转向“极致单品”逻辑 通信技术 显示光电 单片机 测试测量 智能硬件 汽车电子 消费电子 工业控制 医疗电子 电路图 模拟 专访 电源 芯闻号 嵌入式 技术学院 厂商动态 新基建 中国芯 and 34 more... Count: 29 heading tag | |
| H4 Headings | H4 Headings tips for 21ic.com: When optimizing page content for conversions, use H4 headers to clearly label sections like 'Key Benefits' or 'How It Works', visually separating information and improving user comprehension of your message. |
| 热门活动 厂 商 专 区 互利共赢 21ic项目交易平台诚意相邀 Count: 3 heading tag | |
| H5-H6 Headings | H5-H6 Headings tips for 21ic.com: Employ H5 and H6 tags to structure internal document elements, such as definitions, examples, or supplementary notes, improving content clarity and user engagement. |
| 原创说明 专 栏 推 荐 热 门 分 类 项 目 领 域 问 答 专 家 钱 包 应 用 友情链接 Count: 7 heading tag | |
| Image ALT Attributes | Image ALT Attributes tips for 21ic.com: Always prioritize user experience when crafting ALT attributes; describe images clearly so that anyone unable to view them understands the intended message and information being conveyed effectively to all website visitors. |
| https://img.21ic.com/logo.jpg https://misc.21ic.com/homepage2016/images/loading210_120.gif https://bbs.21ic.com/qstatic/image/index/img_logo_1152.jpg https://www.21ic.com/images/homenew/bbs_whxy_logo.jpg https://www.21ic.com/images/homenew/img_logo_1114.jpg https://misc.21ic.com/homepage2016/images/bbs_hdsc_logo.jpg https://www.21ic.com/images/bbs16_geehy_logo.jpg https://www.21ic.com/images/homenew/bbs_nationstech_logo.jpg https://misc.21ic.com/homepage2016/images/bbs_ytl_logo.jpg https://misc.21ic.com/homepage2016/images/bbs_wch_logo.jpg https://misc.21ic.com/homepage2016/images/mini_logo9.jpg https://misc.21ic.com/homepage2016/images/bbs07_st_logo.jpg https://img.21ic.com/2015nav/images/bbs10_zh_logo.jpg and 20 more... Count: 14 images with ALT attributes | |
| Robots.txt | Robots.txt tips for 21ic.com: Using the robots.txt file strategically allows website owners to guide search engine crawlers, ensuring efficient indexing of valuable public content while effectively excluding non-essential or restricted areas like administrative interfaces and testing directories to enhance security and prevent accidental exposure of internal resources. |
| file robots.txt was found on the website | |
| XML Sitemap | XML Sitemap tips for 21ic.com: For websites with seasonal content, localized pages, or extensive archives, an XML Sitemap is key to managing the vast URL space, directing search engines specifically to these unique variations, thereby optimizing indexing efforts across diverse content types and geographic regions effectively. |
| no xml sitemap data for 21ic.com 2026-08-13T22:25:02+00:00 | |
| Page Size | Page Size tips for 21ic.com: The physical size of a webpage directly affects how long users wait before seeing content; prioritize strategies to decrease the page size to maximize user satisfaction and engagement metrics. |
| page size: 140 kb | |
| Response Time | Response Time tips for 21ic.com: Caching strategies are vital for improving repeat visitor response time and reducing server load; configure server-level caching (like Varnish) and application-level caching solutions to deliver content much faster. |
| response time: 4.360 sec | |
| Minify CSS | Minify CSS tips for 21ic.com: Implement CSS minification as a fundamental frontend optimization strategy to automatically reduce the weight of your style sheets by removing all formatting characters, line breaks, and explanatory comments, leading to quicker page loads, higher user engagement metrics that search engines track, and better overall site speed scores. |
| Minified: /css/2017global2_min.css?v=1737095276 /css/homepage/index_nav2_min.css?v=20211019 Unminified: /css/homepage/2017home1_min.css?v=1728352603 /css/homepage/2016microsite1.css?v=1759214074 included in the page | |
| Minify JavaScript | Minify JavaScript tips for 21ic.com: For website owners aiming for superior performance, neglecting JavaScript minification is a costly oversight, as this straightforward optimization reduces file sizes, decreases Time To Interactive by minimizing script execution overhead, and directly contributes to achieving the high Core Web Vitals scores recommended by modern search engines like Google. |
| Minified: /js/homepage/uaredirect.js?v=1634868979 /js/homepage/home.min.js?v=1634868978 /js/homepage/jquery-1.11.0.min.js?v=1634868979 /js/homepage/bigpicroll.min.js?v=1634868978 /js/homepage/jquery-migrate-1.2.1.min.js?v=1634868979 /js/2015nav/slide-nav.min.js?v=1634868978 /js/2015nav/lrtk.min.js?v=1634868978 /js/homepage/jquery.lazyload.min.js?v=1634868979 /js/layer/layer.js?v=1619258749 Unminified: /js/homepage/function-utf8.js?v=1669876976 /js/homepage/slides.min.jquery.js?v=1634868979 /js/homepage/cs.js /js/nav/nav.js /js/homepage/jszzo0.js /js/homepage/cs.js detected during site scan | |
| Structured Data | Structured Data tips for 21ic.com: Rich snippets generated from correctly implemented Schema (e.g., displaying cooking times for recipes or availability for events) can make your search result listings stand out visually, driving more organic traffic. |
| no structured data data for 21ic.com 2026-08-13T22:25:02+00:00 | |
| CDN Usage | CDN Usage tips for 21ic.com: Boost your website's SEO performance on search engines like Google by drastically improving load speed, a ranking factor, ensure all external libraries (scripts, fonts, stylesheets) are served from high-performance CDNs rather than slow external sources or user uploads. |
| no cdn usage data for 21ic.com 2026-08-13T22:25:02+00:00 | |
| SSL certificates | SSL certificates tips for 21ic.com: A valid SSL certificate instantly builds trust with your website visitors through the visible security indicators displayed in web browsers, such as the padlock icon and "HTTPS" address bar, which visually communicate that their data is being handled securely during interactions. |
| SSL is enabled on the website |
Estimated Traffic
| Minimum Daily Unique Visitors: | 90 101 |
| Minimum Daily Visits: | 105 298 |
| Minimum Daily Page Views: | 181 287 |
| Minimum Monthly Unique Visitors: | 2 703 030 |
| Minimum Monthly Visits: | 3 158 940 |
| Minimum Monthly Page Views: | 5 438 610 |
| Minimum Yearly Unique Visitors: | 32 436 360 |
| Minimum Yearly Visits: | 37 907 280 |
| Minimum Yearly Page Views: | 65 263 320 |
| Maximum Daily Unique Visitors: | 113 983 |
| Maximum Daily Visits: | 121 582 |
| Maximum Daily Page Views: | 205 169 |
| Maximum Monthly Unique Visitors: | 3 419 490 |
| Maximum Monthly Visits: | 3 647 460 |
| Maximum Monthly Page Views: | 6 155 070 |
| Maximum Yearly Unique Visitors: | 41 033 880 |
| Maximum Yearly Visits: | 43 769 520 |
| Maximum Yearly Page Views: | 73 860 840 |
Estimated Valuation
| Daily Revenue: | US$ 130 - 293 |
| Monthly Revenue: | US$ 3 900 - 8 790 |
| Yearly Revenue: | US$ 46 800 - 105 480 |
Estimated Worth
| Minimum: | US$ 70 200 |
| Maximum: | US$ 316 440 |
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