How to Run a Complete SEO Audit with Ahrefs: Step-by-Step Guide for Beginners (2026)
📑 Table of Contents
Search engine optimization (SEO) is what separates a profitable website from an invisible one. But you can’t improve what you don’t measure — and that’s where an SEO audit comes in. An SEO audit with Ahrefs is the single most impactful thing you can do to understand why your site is (or isn’t) ranking and exactly what to fix next.
This step-by-step guide walks you through running a complete SEO audit using Ahrefs — from setting up your project to interpreting the results and creating an action plan. Whether you’re a blogger, affiliate marketer, or small business owner, these steps work for any website in 2026.
What You'll Need Before Starting
Before diving into the audit, make sure you have:
- An Ahrefs account — Sign up at ahrefs.com. The Lite plan ($29/mo) covers the Site Audit tool, but the Standard plan ($129/mo) unlocks Site Explorer, Keyword Explorer, and Content Explorer — all essential for a complete audit.
- Google Search Console access — This is free and provides critical data that complements Ahrefs (including Google’s view of your crawl errors and search queries).
- Google Analytics access — Link this up to track organic traffic trends alongside your audit findings.
- About 90 minutes — Your first audit takes the longest. Subsequent audits (every 3-6 months) take 30-45 minutes.
If you already use Semrush for SEO, you may also want to check out our detailed guide to running an SEO audit with Semrush for comparison.
Step 1: Run the Ahrefs Site Audit Crawl
The Ahrefs Site Audit tool is your starting point. It crawls your entire website just like Googlebot does — finding technical issues, broken links, missing meta tags, slow pages, and hundreds of other problems.
| Feature | Ahrefs Site Audit | Google Search Console | Screaming Frog |
|---|---|---|---|
| Max Pages Crawled | 140,000 (per project) | Limited (index data only) | 500 (free) / Unlimited (paid) |
| Issue Detection | 100+ checks | ~20 checks | 50+ checks |
| Crawl Schedule | Automated weekly | Continuous | Manual only |
| Issue Priority | ✓ Error/Warning/Notice | ✗ No priority tiers | ✓ Filterable |
| Historical Tracking | ✓ Over time | ✓ Limited | ✗ No |
| Price | Included with Ahrefs | Free | Free / $259/yr paid |
To start the crawl:
- Log into Ahrefs and navigate to Site Audit from the left sidebar.
- Click + New Project and enter your website URL.
- Configure crawl settings — leave defaults unless your site is very large (500+ pages with deep navigation).
- Click Start crawl. Ahrefs will begin spidering your site immediately. For a typical blog on SiteGround or Hostinger with 50-200 pages, the first crawl completes in 5-15 minutes.
Once the crawl finishes, Ahrefs shows you a Site Health Score (0-100). A score above 90 is excellent. Below 70 means serious issues need attention.
Step 2: Fix Critical Technical Issues First
The Site Audit dashboard classifies all found issues into three severity levels:
- Errors — Must fix immediately. These are blocking Google from indexing your content.
- Warnings — Should fix. These reduce your ranking potential.
- Notices — Nice to fix. These are minor or informational suggestions.
Common critical errors to look for:
Broken links (4XX and 5XX). Every broken link damages user experience and wastes crawl budget. Ahrefs flags each one with the exact page URL and the broken link location. Fix these by updating or removing the broken links. If you recently migrated your site to WP Engine or another managed host, check for old URLs that haven’t been redirected.
Missing or duplicate title tags. Each page should have a unique, compelling title tag between 50-60 characters. Ahrefs shows you every page with missing, duplicate, or too-long titles. Fix the missing ones first — title tags are the second most important on-page ranking factor after content.
Missing meta descriptions. While not a direct ranking factor, meta descriptions affect click-through rates (CTR) from search results. Ahrefs highlights every page missing one. Write unique, action-oriented descriptions for at least your most important pages.
Redirect chains. Multiple redirects in a row (e.g., page A → page B → page C → final page) slow down your site and dilute SEO value. Ahrefs traces the entire redirect chain and flags anything longer than one hop. Shorten these to direct redirects.
Slow pages. Ahrefs identifies pages with load times over 3 seconds. Speed is a confirmed Google ranking factor. Optimize images, enable caching, and consider upgrading your hosting if you consistently see slow load times across your site.
Step 3: Audit Your Backlink Profile with Site Explorer
Your backlink profile tells Google how authoritative your site is. Ahrefs has the largest backlink index in the industry — over 17 trillion links as of 2026.
Open Site Explorer from the sidebar and enter your domain. The dashboard shows:
- Domain Rating (DR) — Ahrefs’ proprietary metric for overall link authority on a 1-100 scale. Higher is better, but don’t obsess over this number. Focus on acquiring quality, relevant backlinks.
- Referring Domains — The number of unique websites linking to you. More quality referring domains = stronger authority signal.
- Backlinks — Total backlinks (including multiple from the same domain).
- Organic Traffic — Estimated monthly organic search traffic based on Ahrefs’ keyword data.
Click into the Backlinks tab to see every individual link pointing to your site. Use the filters to find:
- Broken backlinks — Sites linking to pages on your domain that now return 404 errors. Fix these by setting up 301 redirects to relevant pages, and you’ll recover the link value.
- Low-quality or toxic links — Links from spammy directories or irrelevant sites. Ahrefs’ Domain Rating filter helps you identify these. If you see a pattern of toxic links, use Google’s Disavow Tool to disassociate from them.
- New and lost backlinks — Track which links you gained or lost in the last 30 days. A sudden drop in referring domains may indicate a competitor scraping your best link sources.
Don’t overlook the Best by Links report under the Top Pages section. This shows which pages of yours attract the most backlinks — replicate that content strategy on other topics.
Step 4: Run a Content Gap Analysis
Content Gap analysis is where Ahrefs truly shines. This report shows you keywords your competitors rank for that you don’t — the easiest route to discover new content opportunities.
To use it:
- Go to Site Explorer → enter your domain.
- Click Content Gap in the left sidebar.
- Add 3-5 competitor domains in the input field. Pick competitors from the Competing Domains tab if you’re unsure who to add.
- Click Show keywords. Ahrefs returns every keyword where at least one of your competitors ranks in the top 10 but you don’t.
The results are gold. Sort by Volume (search volume) to find the biggest opportunities, or by KD (Keyword Difficulty) to find lower-competition, quick-win keywords.
Target keywords with:
- Volume: 100-1,000 searches/month
- KD: Below 30 (easy to rank) or 30-60 (moderate effort)
- Clicks: High (not all results have click potential)
For a deeper dive into keyword research, check out our Semrush vs Ahrefs comparison to see which tool fits your workflow better.
Step 5: Optimize Your On-Page SEO with Ahrefs' Reports
Ahrefs gives you page-level optimization data through Site Explorer → Organic Keywords. Enter your domain, switch to the Pages view, and sort by organic traffic. Click any page to see:
- Top organic keywords — Which search terms this page ranks for currently.
- Position history — Whether its rankings are trending up or down over the last 30 days.
- Estimated traffic — Monthly organic visits for each keyword.
- SERP features — Whether the page appears in featured snippets, People Also Ask, or other rich results.
For each page, ask yourself:
- Is the keyword in the H1 tag? It should be.
- Is there a clear, compelling meta title and description? If not, Ahrefs will tell you.
- Is the content at least 1,500 words? Longer content tends to rank better for informational queries.
- Are there internal links to related pages? Every page should have 3-5 internal links pointing to it and from it.
Pages losing rankings over 30 days need immediate attention. Refresh the content, add newer data, and check whether a competitor published something stronger.
Step 6: Check Your Keyword Rankings
The Rank Tracker in Ahrefs (under any plan) lets you monitor specific keyword positions daily. Set up a project with your top 20-50 keywords and track their movement over time.
Key metrics to watch:
- Average position — Overall trend direction. Up is good, down is a warning sign.
- Visibility — Ahrefs’ composite metric showing what percentage of your tracked keywords appear in top 10 results.
- Traffic estimate — Combined estimated traffic from all tracked keywords.
If you see a broad ranking drop, check Google Search Console for manual actions or algorithm updates. If a single keyword drops, the competing page may have been updated — time to refresh your own.
Step 7: Create Your SEO Action Plan
After running all the reports, consolidate findings into a prioritized action plan:
| Priority | Issue Type | Example Fixes | Expected Impact |
|---|---|---|---|
| P0 - Immediate | Critical errors | Fix broken links, redirect chains, blocked pages | Recover lost rankings, unblock indexation |
| P1 - This Week | Content gaps | Write 3-5 articles targeting competitor keywords you don't rank for | New organic traffic in 2-8 weeks |
| P2 - This Month | On-page optimization | Refresh top 10 pages: update content, improve titles/metas, add internal links | 10-30% traffic boost on refreshed pages |
| P3 - Ongoing | Backlink building | Reclaim broken backlinks, pitch guest posts on high-DR sites | Gradual DR growth over 3-6 months |
Ahrefs vs Other SEO Audit Tools: A Quick Comparison
Not sure if Ahrefs is right for you? Here’s how it stacks up against the main alternatives:
| Feature | Ahrefs | Semrush | Moz Pro | Screaming Frog |
|---|---|---|---|---|
| Backlink Index Size | 17 trillion+ | 16 trillion | ~9 trillion | N/A |
| Site Audit | 100+ checks | 130+ checks | Basic checks | 50+ checks |
| Keyword Database | ~27B keywords | ~25B keywords | ~1B keywords | N/A |
| Content Gap | ✓ Excellent | ✓ Excellent | ✗ | ✗ |
| Rank Tracking | Included | Included | Included | ✗ |
| Starting Price | $29/mo | $139.95/mo | $99/mo | $259/yr |
For a detailed head-to-head, read our full Semrush vs Ahrefs comparison guide.
If you’re just starting your affiliate marketing journey and need a complete blueprint, our guide to starting an affiliate marketing website covers everything from domain registration to the first $100 in commissions.
Frequently Asked Questions
What is an SEO audit and why do I need one?
An SEO audit is a comprehensive analysis of your website's search engine optimization health. It identifies technical issues, content gaps, backlink problems, and on-page optimization opportunities that hold your site back from ranking higher. Regular audits every 3-6 months help you stay competitive and catch problems before they cost you traffic.
Is Ahrefs free to use for an SEO audit?
Ahrefs is a premium SEO tool with paid plans starting at $29/month (Lite plan — site audit only), $129/month (Standard), and up. There is no permanent free plan, but Ahrefs does offer a 7-day trial for $7. For a free alternative, Google Search Console + Google Analytics can cover basics, but lack Ahrefs' depth in competitor analysis and backlink data.
How often should I run an SEO audit?
For most websites, a full SEO audit every 3-6 months is sufficient. However, check the Ahrefs Site Audit tool weekly for new issues flagged automatically. If you're launching a major redesign, migrating domains, or noticing a traffic drop, run an audit immediately.
What's the most important metric to fix first?
Start with critical errors flagged in the Site Audit — especially broken links, missing meta descriptions, duplicate title tags, and slow page load times. Ahrefs grades each issue by severity (Error, Warning, Notice), so work through them top to bottom. Fixing all Errors first typically recovers the most lost traffic.
Does Ahrefs help with content optimization beyond technical SEO?
Absolutely. Ahrefs includes Content Gap analysis (find keywords your competitors rank for but you don't), Keyword Explorer (search volume, difficulty, clicks), Content Browser (trending topics), and a full suite of content optimization tools. Together they form a complete SEO workflow from audit to content creation.
Final Verdict: Is Ahrefs Worth It for SEO Audits?
Rating: 4.7 / 5 — Ahrefs is the most comprehensive SEO audit tool available in 2026. Its combination of a massive backlink index, deep site crawling, automated monitoring, and actionable reporting makes it the clear first choice for anyone serious about SEO.
Pros: Largest backlink index, excellent content gap analysis, weekly automated site crawls, intuitive interface, keyword difficulty data that's remarkably accurate.
Cons: Premium pricing (especially the Standard+ tiers needed for Site Explorer), no free tier, learning curve for advanced features.
Who should buy it: Bloggers, affiliate marketers, SEO professionals, and small-to-medium business owners who want a single tool to handle all their SEO needs. If you're managing multiple sites or in a competitive niche, Ahrefs is worth every penny.
Who should skip it: Absolute beginners on a $0 budget (use Google Search Console for free), or very small local businesses with no competition.