Ningbo ZLOR was founded in April 2015,located in Gulin Town, Haishu District, Ningbo City, and set up a branch in Huaian, Jiangsu Province in 2016。 We are professional manufacturer of high frequency transformers, boost inductor, DR inductor, common mode choke, SQ inductor, filter and so on electronic components, and was rated Zhejiang Provincial Technological SMEs,with our own Self operated export rights.Now Our design and R&D team have more than 20 years in transformers and inductors. In 2023 manufactured more than 6 millions transformer and 40 millions inductors yearly. We have passed the ISO9001: 2015 quality system certification, CE, and ROHS certificates in 2017, UL insulation System Certificate in 2020. by the company spirit Make fine businesses to meet customers' needs and Make reliable products with the best quality,we have in-depth cooperated with a lot of listed companies and overseas well-known customers, Like, Deye Group, Ningshui Group, Keli Sensor, Hangzhou Xili , Flextronics and Honeywell,etc. Our company value is Serving Customers,Work Hard,Self-criticism,Sincere Trustworthy,Forge Ahead and Team Work, We look forward to working with customers, all over the world, win-win cooperation!
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DNS解析是将易记的域名（如www.example.com）转换成计算机能识别的IP地址（如192.168.1.1）的过程。
互联网设备依赖IP地址通信，但用户难以记忆复杂的数字串，域名相当于IP的“别名”。当你在浏览器输入域名后，本地DNS服务器会先查询缓存，若未找到则向上级DNS服务器逐层查询，直到匹配到对应IP，再将结果返回给浏览器，使其能连接到目标网站服务器。
在拨测场景中，DNS解析检测会通过多节点查询域名的A记录（IPv4地址）、AAAA记录（IPv6地址）、CNAME（别名指向）、是否使用CDN等，判断解析是否全网一致、是否存在异常解析（如DNS污染）。
DNS解析核心是将域名转换为网络可识别的IP地址，工作流程如下：
两者本质是同一回事，只是表述角度不同： 域名解析是从需求和结果的角度，指将易记的域名转换为网络可识别的IP地址的操作； DNS解析是从实现方式的角度，指依靠DNS（域名系统，负责域名与IP映射的分布式系统）完成上述域名到IP映射的过程。 日常语境中两者可通用，比如查询域名的A记录、CNAME记录等操作，既可以称为域名解析查询，也可称为DNS解析查询。
