The first time I saw the term "sand box," I was a little confused. Although the site I maintained went in and out of it as if it were an ordinary thing, it felt a bit like visiting relatives.
In my early days doing SEO for Nantong, I accidentally got one of my client's sites penalized. At that time, I didn’t understand what a "sand box" was and just assumed it had entered the sandbox. Fortunately, the client had two sites, so the impact wasn't too severe.
Later, the way I handled it was to avoid malicious actions and let things take their natural course. Sure enough, the first big gift after the New Year was the recovery of the site’s weight, and it regained its traffic. At that time, there were few people in the Nantong SEO industry—there was one person named Zhi Guo from Cheng City, and another from Yuanqiao. Others couldn’t really be counted among professionals. But we weren’t all that familiar with each other. Back then, when I was bored, I optimized the keyword “kneading machine.” It seems someone from Yuanqiao called me and asked: “If you don’t sell this product, why optimize for it?” Well, that site was eventually shut down.