How I Built a $2,400/Month Side Income Doing Technical SEO Audits (No Code Required)
Last month I made $2,413 doing technical SEO audits for small businesses. Sounds modest. It is. But it adds up, and it scales in a way I did not expect when I started. I am going to walk you through the entire thing, including the parts I wish someone had told me on day one. No coding. No agency. No team. Just me, my laptop, and a checklist I built over eighteen months of trial and error.
This is the actual stack I run today, the way I price my work, where I find clients, and the honest list of things I wish I had known on day one. If you are reading this and you have never done an SEO audit before, that is fine. I had not either, when I started.
What a technical SEO audit actually is
A technical SEO audit is a deep look at why a website is or is not ranking on Google. It is not keyword research. It is not content writing. It is the technical layer underneath. How fast does the site load. How does it look on mobile. Are there broken pages. Are there 404 errors. Is the sitemap set up right. Is the schema markup correct. Is the internal linking structure helping or hurting. Are there crawl errors that Google is silently ignoring.
Most small business websites have at least 5 to 10 of these issues. Most business owners have no idea. They hired a web designer 3 years ago, the designer did a nice looking site, and the owner has not touched it since. The site is slow, has dozens of broken links, and is missing the basic technical setup that Google wants. The owner is paying for Google Ads to compensate, which is expensive and stops the moment the budget runs out. An audit fixes the underlying problem so the site can rank organically, which is free traffic forever.
The reason this is a service worth paying for, and the reason I can charge $400 to $600 per audit, is that the ROI for the client is usually 5x to 20x within 6 months. If a client is currently paying $2,000 a month on Google Ads and the audit helps them rank organically for their target keywords, they save $24,000 a year. The audit pays for itself in the first month.
What I actually use to do the work
The full tool stack, with what each one does. Screaming Frog ($259 a year) is the workhorse. I run a crawl of the client’s site, and it tells me about 80% of the issues. Broken links. Redirect chains. Missing meta descriptions. Duplicate title tags. Hreflang errors. Page speed issues. The list goes on. If you are going to do this for money, you need Screaming Frog. There is no good free alternative.
Google Search Console (free) tells me what Google is actually seeing. Which pages are indexed. Which queries are bringing traffic. Which pages have manual actions. Which pages are getting crawled but not indexed. This is the ground truth. Screaming Frog tells me what could be wrong. Search Console tells me what is actually wrong in Google’s eyes.
Google PageSpeed Insights (free) for the Core Web Vitals scores. Every audit includes a section on page speed, and the LCP, FID, and CLS scores need to be in the green. Ahrefs or Semrush ($99 to $129 a month) for backlink analysis and keyword difficulty. Sitebulb (free tier available) is a nice complement to Screaming Frog, especially for larger sites.
That is the full stack. Total annual cost: $1,000 to $1,500 for the paid tools. Monthly cost: $80 to $100. If you are going to do this for money, this is the minimum investment.
How I learned the skill
I learned technical SEO by doing 17 free audits in my first 6 months. Real clients, real websites, real reports, free of charge. The reason I did it for free is that I had no portfolio, no testimonials, and no way to prove I knew what I was doing. The 17 free audits gave me the portfolio, the case studies, and the testimonials. They also gave me something I did not expect, which was 6 of those 17 clients later hired me for paid work, and 4 of them are still clients today.
The free audits cost me about 8 hours each, so 136 hours total. I treated them as paid work in terms of quality. I sent a real PDF report with prioritized recommendations. I did a 30 minute walkthrough call with each client. I followed up by email a month later to see if they had implemented the fixes. Most had not, which is a different problem, but that is normal. The point is that the work I did for free was indistinguishable from the work I do for pay, and that is what built my reputation.
The single best resource for learning is the Google Search Central documentation. It is dense, it is technical, and it is free. Read it. Read the sections on JavaScript SEO, mobile first indexing, and structured data three times, and you will know more than 90% of the people calling themselves SEO consultants. The second best resource is the Ahrefs blog, which has more practical how to content than any paid course.
How I price my audits
Three tiers. $400 for a small site audit (up to 100 pages). $600 for a medium site audit (100 to 1,000 pages). $1,200 for a large or complex site audit (over 1,000 pages, or e commerce, or multilingual). The price difference is not just about the time it takes, though it does take longer. The price difference is about the value the client is going to get. A 5,000 page e commerce site that ranks for 1,000 keywords is generating real revenue from organic search, and the audit has a much higher ROI for them.
I do not negotiate. I have heard pushback on my price about 20% of the time. About half of those clients come back a few months later after they have gotten cheaper audits that they could not use, and they hire me. The other half go to a cheaper competitor, which is fine. I would rather have a 100% close rate at my price than a 60% close rate at a lower price. The 60% close rate makes me less money and attracts worse clients. The 100% close rate at my price makes me more money and attracts clients who value the work.
The other thing I will say about pricing is to raise it every 6 months. I started at $200 an audit. I am now at $400 to $1,200 depending on the size. The clients I get at $400 are easier to work with than the clients I got at $200. Cheaper clients are more demanding, more likely to scope creep, and more likely to ask for free revisions. Expensive clients trust your judgment more, ask for fewer revisions, and are more likely to become repeat business.
Where I find clients (and where I do not)
Where I find clients. Word of mouth. About 60% of my clients come from referrals from other clients, or from people in my network. LinkedIn is the second best source. I post the results of audits I have done (anonymized), and the inbound DMs start coming. I close about 1 in 5 inbound DMs, which is a much higher close rate than cold outreach.
Local business meetups and chambers of commerce. I go to 2 to 3 a month, and I usually pick up 1 to 2 new clients per quarter from these. The setup is, I give a 20 minute talk on “5 SEO mistakes local businesses make that are costing them customers,” and the business owners in the room are pre qualified to need my service. The conversion rate from these talks is about 10%.
Where I do not find clients. Upwork and Fiverr. The clients on those platforms are shopping for the cheapest option, and the work pays accordingly. The economics do not work at $50 an hour, which is what the market forces on those platforms. I made an exception once for a referral from a friend, and the client tried to get me down to $150 for a 6 hour audit. Never again.
What I wish I had known on day one
One, the SEO audit is the easy part. The hard part is the implementation. Most clients will not implement the recommendations, even when they pay $400 for them. The audit sits in a folder, the business owner reads the executive summary, and then they go back to their day job. If you want to charge more and have higher impact, sell implementation, not audits. A $2,000 implementation engagement, where you actually do the fixes, has 5x the impact of a $400 audit that sits in a folder.
Two, learn to read a server log file. This is the single most underused skill in technical SEO. A log file tells you exactly which pages Google is crawling, how often, and whether it is hitting errors. Most audits I have seen from other consultants do not include log file analysis, which is the easiest way to find issues that no other tool surfaces. I use the free Screaming Frog Log File Analyzer for this, and it is worth its weight in gold.
Three, build relationships with web developers. You will refer clients to them for implementation, and they will refer clients to you for audits. The split is usually 70% to 30% in your favor, because audits are easier to find than good developers. I have 3 developers I work with regularly, and they send me about 2 to 3 clients a year. That is worth more than any cold outreach I could do.
Is this realistic for you
Honest answer. Yes, if you are willing to put in 6 months of unpaid work first to build the skill and the portfolio. No, if you are looking for a get rich quick thing. This is a real skill that takes real time to learn. The barrier to entry is low (a laptop, a few hundred dollars in tools, and time), but the barrier to being good is high. The people making $5,000 a month from this have done at least 50 audits, and have probably been doing it for 2 to 3 years.
The best part about this side income is that it does not scale linearly with hours worked. Once you have a checklist and a process, an audit takes 4 to 6 hours regardless of the client. You can do 2 to 3 a week on the side of a full time job, charge $400 to $600 each, and make $3,000 to $7,000 a month. That is real money, and it is money that compounds. After a year, most of your clients come from referrals, which means less time selling and more time doing the work you are good at.
