People running WeChat public accounts know this feeling:
You write for hours, but does anyone actually read it?
What search terms do users use to find you?
Where does your content rank in search results?
You write "free alternative to Photoshop" — are users searching for "free photo editing tool" or "open source design software" or something else?
You have no idea.
Previously, to figure this out, you had only two options:
Spend $200+ per month on Semrush or Ahrefs, or hire someone to do SEO — neither is realistic for individual creators.
But recently, a project on GitHub opened a new path.
1️⃣ In a Nutshell
OpenSEO, an open-source SEO analysis platform
MIT license, created by Ben Senescu.
He had been building various developer tools and noticed that SEO tools on the market were expensive and bloated. A simple small website owner didn't need those advanced features, yet they still charged hundreds of dollars per month.
So he built an open-source set focused on the truly useful core scenarios.
- Keyword research,
- Rank tracking,
- Competitor analysis,
- Backlink checking,
- Site technical audit —
Same core features as Semrush and Ahrefs, but open-source and with a much cleaner interface.
In a word:
Take the core capabilities of paid SEO tools and reduce the cost to nearly zero.
How?
OpenSEO offers two usage methods.
Self-host (Docker/Cloudflare):
Software is free, you only pay DataForSEO API query fees. About $3.5 for 100 keyword research queries, about $1.2 per week for tracking 100 keywords.
Either way, it's orders of magnitude cheaper than Semrush's $200+ per month.
2️⃣ Features You'll Definitely Use
Keyword Research
Enter a word, get search volume, competition difficulty, and search intent.
For example, before writing a WeChat article, check how many people are actually searching for this topic.
What do people searching for this term want — tutorials, comparison reviews, or tool recommendations?
With this information before writing, your hit rate is much higher than writing blindly.
I've observed a phenomenon:
Many pieces of content are well-made but get no views. The problem is usually not poor writing, but that the topic itself isn't being searched.
First use keyword research to validate demand, then decide whether to write — this habit is more important than any writing technique.
OpenSEO also supports data breakdown by country, covering major countries by default. The latest version added keyword data for 48 more countries.
If your content targets a specific region, this feature is especially useful.
Rank Tracking
Set your website or WeChat article link, and it will automatically tell you weekly whether your ranking has gone up or down.
No need to manually search every day.
Competitor Analysis
Enter a competitor's website to see which keywords are driving their traffic.
For example, in open-source tool recommendations, see what content others write that gets views and what doesn't — data speaks.
Site Technical Audit
Automatically crawl your site to tell you which pages load slowly, which links are broken, and which SEO basics are missing.
For non-technical people, these suggestions are like having a free technical consultant.
3️⃣ How to Install
You don't need to know how to code, but you need to use a little command line.
Method 1 (Recommended): Docker One-Click Deploy
Prerequisite: Install Docker Desktop.
git clone https://github.com/every-app/open-seo.git
cd open-seo
cp .env.example .env
Open the .env file and fill in the API Key obtained from DataForSEO.
Then:
docker compose up -d
Open http://localhost:3001 and you're ready to go.
Method 2: Cloudflare Free Deploy
If you already have a Cloudflare account, click the "Deploy to Cloudflare" button in the README and follow the prompts.
No server needed; Cloudflare's free tier is enough to run it.
Method 3 (Easiest): Use the Official Hosted Version
Register at openseo.so and use it directly, no deployment needed.
The free version includes 7 AI analysis credits. For deep usage, it's $10 per month, including $10 usage credit.
Newbies can try the official version first to see if it's worth it, then decide whether to self-host.
⚠️ What you need to prepare:
DataForSEO account and API Key (registration gives $1 trial credit)
For Docker method, install Docker on your machine (download Desktop version from the official site, just click next all the way).
FAQ:
Q: What if I don't know command line?
A: Then the Cloudflare method is more suitable for you — most operations are done by clicking buttons on the web page.
Q: Is DataForSEO registration troublesome?
A: Just fill in your email and basic info, and the API Key will be sent to your email.
First recharge $50, then you can use it for a long time — tracking 100 keywords for a month costs about $1.2, you do the math.
Q: Do I need to configure anything after installation?
A: After installation, log in and follow the interface guide.
First thing: add your website domain and run a keyword research to try it out.
4️⃣ Discussion
SEO tools used to be a privilege of companies — high monthly fees, high barriers, individual creators couldn't access them.
But now tools are free, APIs are pay-as-you-go, and deployment is simple.
A person running a WeChat public account can now use the same data tools as big companies.
After installing it, I checked my own data and discovered several things I never knew:
A keyword I thought was very niche actually has thousands of searches per month;
Another topic I thought was hot actually has very low search volume.
Without data, you're writing purely by feeling — it's no different from shooting in the dark.
Here's the question:
When everyone can do SEO, does the advantage of SEO still exist?
Does it make the content market fairer (good content is easier to discover) or more competitive (everyone chases keywords)?
But a reminder:
Data is a reference, not an answer.
Keyword research tells you that a topic is being searched, but that doesn't mean you can write anything and it will go viral.
Ultimately, it's about whether the content itself has value.
Tools are free, but thinking is not.
Use data as a reference, don't let data replace judgment!
📚 Related Resources:
GitHub Repository: https://github.com/every-app/open-seo
Official Website: https://openseo.so
Author's X: https://x.com/bensenescu
Semrush costs over $200 a month, which is really discouraging. This open-source solution is much more friendly for individuals, and even if the API charges, it's totally acceptable.