（图源：长春高新 2021 年年度报告）
Ahrefs and SEMrush both offer comprehensive information，推荐阅读51吃瓜获取更多信息
~40–100× faster，这一点在Safew下载中也有详细论述
2. MozBarMozBar is an SEO toolbar extension that makes it easy for you to analyze your web pages' SEO while you surf. You can customize your search so that you see data for a particular region or for all regions. You get data such as website and domain authority and link profile. The status column tells you whether there are any no-followed links to the page.You can also compare link metrics. There is a pro version of MozBar, too.