About company information: If there is a company name and website in the recruitment information, you can search online to see if there is real information and website, and check the qualifications and background of the company;
About job information: You can search the average salary level of the industry where the job-seeking position is located on some websites that provide information about various industries, and roughly estimate the salary of the job-seeking position in combination with the local average salary level. The salary is too high or too low, and the credibility of the position is not high. If there are too many jobs in the same company for a long time, it may be advertisements, but the company has no real recruitment needs;
About recruitment feedback: Some websites can provide feedback on recruitment information, such as interview evaluation. If other job seekers interview the company that posted the recruitment information and write their own comments on the website, job seekers can roughly judge the recruitment information and the company's situation according to the comments.