21THING.COM - Whois Information
时代信息
时代信息网为您提供专业的信息资讯,机械企业专家,机械网提供：机械公司,机械产品,机械新闻,机械类展会,机械采购商等专业机械信息。购买,租赁,起重机,升降机,轴承,千斤顶,钢管,锅炉,水泵,压缩机,冲压件,模具,风机,彩钢,电梯,数控机床,焊机,阀门,机床,钢材,干洗机,发电机等专业信息资讯。
21thing.com
To improve performance of WHOIS service and to prevent its excessive high-volume use by a single source, we implemented a randomly generated Access Code that must be entered before running a WHOIS request.
The Access Code in the box is provided in graphics format. It has letters which are generated randomly and the symbol images are distorted. The distorted symbols cannot be read by computer programs which are used for mass-collect email addresses and any customer information. Only humans can read the distorted symbols and pass the access code.
The Access Code improves performance of our services. It prevents excessive high-volume use by a single source.
The services that require Access Codes are:
Whois – after entering the correct Access Code you can run 10 WHOIS requests before you will be prompted to enter a new Access Code.
Site Info – you can run 25 Site Info requests before you will be prompted to enter an Access Code.
Trace Route - you can run 20 Trace Route requests before you will be prompted to enter an Access Code.
RBL Check - you can run 20 RBL Check requests before you will be prompted to enter an Access Code.
What’s my IP - Access Code is not required for this service.
NOTE: We may modify Access Code policy at any time without notice on this web page.
