There is no absolute best SEO tool, it only suits different needs. Personal bloggers, small and medium-sized webmasters or large enterprise operators should choose according to their own circumstances. Keyword research and competitor analysis recommend Ahrefs and SEMrush. The former has a powerful anti-link database, while the latter has a more comprehensive marketing function. Website diagnosis is recommended to use Screaming Frog to scan regularly and monitor index status in real time with Google Search Console; content creation auxiliary tools Surfer SEO and Clearscope can provide keyword and structure suggestions, but they need to be original; other supplementary tools include Ubersuggest, Moz Pro and Keyword Surfer, which are suitable for use in different scenarios. Before selecting tools, you should clarify core issues, give priority to solving key needs, and use free trials to evaluate the effect.
Speaking of SEO tools, there is actually no absolute "best", only suitable for your current needs. If you are a personal blogger, small and medium webmaster, or large enterprise operator, the tools that suit you may be completely different. However, some tools have been recommended in the industry for a long time because of their comprehensive functions, accurate data and friendly operations.

The following are some widely used and highly practical SEO tools, classified by different needs:

Keyword research and competitor analysis: Ahrefs and SEMrush
These two tools are very powerful in keyword mining and competitor analysis. They can tell you the search volume, difficulty, and trend of a keyword, and you can also see the source of competitors' external links, advertising delivery, etc.
- Ahrefs' strength is that its backlink database is very large and has high update frequency.
- SEMrush is more comprehensive in comprehensive marketing analysis, such as being able to find competitors’ PPC advertising strategies.
For example, if you want to optimize an article about "running equipment", you can use these tools to see how many monthly searches are for this keyword, how competitive they are, and what long-tail words can be considered.

suggestion:
- You can use the free trial version to experience it in the early stage
- If the budget is limited, choose one first and do not subscribe to both
- Focus more on the trend chart of keywords, rather than just looking at numbers
Website diagnostics and content optimization: Screaming Frog and Google Search Console
Screaming Frog is a locally installed website crawler tool suitable for checking website technical problems, such as dead links, duplicate titles, H-tag structure mess, etc. Although the interface is a bit "programmer-style", it is very effective in troubleshooting problems.
Google Search Console (GSC) is the basic tool that every website should bind to. It can tell you the index status of the website on Google, whether the core Web metrics meet the standards, which pages were crawled errors, etc.
suggestion:
- Screaming Frog scans regularly every month
- GSC should be monitored in real time, especially when there is "manual penalties" or "index drop"
- Cooperate with PageSpeed Insights to optimize loading speed to improve user experience
Content creation assistance: Surfer SEO and Clearscope
If you write SEO articles frequently, these two tools can help you quickly understand the content trends under a certain keyword. For example, they will analyze what keywords are used in the top-ranked articles, what is the paragraph structure, and whether there are any important information points missing.
Clearscope is more inclined to the content editing stage and can generate a list of keyword suggestions; while Surfer SEO also provides a templated content outline to facilitate team collaboration.
suggestion:
- Don't copy the suggestions completely and keep them original
- Use them to make up for the angles you didn't consider
- Especially suitable for reference when writing high-quality long articles by novices
Additional utility supplements
There are also some niche but useful tools that can be used according to the specific scenario:
- Ubersuggest : Launched by Neil Patel, suitable for beginners, cheap and full of features
- Moz Pro : Old-fashioned SEO tools, professional reporting, active community
- Keyword Surfer (Chrome plug-in) : Free, collect keyword data while browsing, it is very easy to use
Basically, that’s all. You don’t need to be greedy when choosing tools. First, figure out what the problem you need to solve the most. For example, if you are a foreign trade e-commerce company, you may pay more attention to keywords and external link data; if you are a content creator, then content optimization tools are more important. Many tools have free trials, so you might as well try it before deciding.
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