1.白帽SEO：
它是最流行的 SEO 技术，它利用方法和技术来提高搜索引擎排名。白帽 SEO 使用高质量内容、链接获取等技术。
2. 灰帽搜索引擎优化：
灰帽 SEO 既不是黑色也不是白色，而是将两者结合起来。它将白帽 SEO 转换为黑帽 SEO，将黑帽 SEO 转换为白帽 SEO 技术。
白帽 SEO 和灰帽 SEO 的区别：
| S.No. | White hat SEO | Gray hat SEO |
|---|---|---|
| 1. | It follows SEO guidelines. | It also follows SEO guidelines. |
| 2. | It helps in growth in ranking of websites. | It helps in conversion from White Hat SEO to Black Hat SEO and vice versa. |
| 3. | It not much risker. | Gray hat SEO is much more risker than White Hat SEO. |
| 4. | It makes your site easy to navigate. | It redesign your websites at regular interval. |
| 5. | It is safe and recommended SEO techniques. | It is between Black Hat SEO and White Hat SEO. |
| 6. | It is mobile friendly. | It is risky but it can improve the ranking of your site without negative consequence. |
| 7. | It provides site security. | It adds good relevant link to the page. |
| 8. | It also provides UX design. | It selects good and notable topic. |
| 9. | It includes standard HTML | It also called as computer security expert who may sometimes violates laws or typical standards. |
| 10. | It is best approaching tactics for driving traffic to a site. | It is also best approaching tactics for driving traffic to a site. |