Different problems, different tools
Ahrefs Site Audit is the technical SEO module inside the wider Ahrefs SEO suite. It crawls your entire site (often thousands of URLs) and reports on 170+ SEO issues across content quality, internal linking, mobile usability, and indexability. It is excellent at what it does.
ismycodesafe.com is not trying to be a site-wide SEO platform. We are a single-URL dual-purpose scanner: 200+ security checks, 21 SEO checks, and 10 AI search readiness checks - all on the URL you submit, free, in 60 seconds.
What Ahrefs Site Audit does well
- Site-wide crawl: Schedules recurring crawls of every URL on your domain
- Health score: Single number summarising overall technical SEO state
- Backlink-gap context: SEO issues weighted by traffic loss they could cause, using Ahrefs link data
- JavaScript rendering: Full headless browser crawl for SPAs
- Custom segments: Crawl-issue filtering by page type, depth, language
- Integration with rank tracking, keyword research, content explorer
What ismycodesafe.com adds that Ahrefs cannot
Ahrefs Site Audit is purely an SEO tool. It will never tell you:
- Whether your SSL/TLS configuration leaks Heartbleed or CRIME
- Whether your CSP, HSTS, X-Frame-Options headers are configured
- Which OWASP Top 10 categories your site is exposed in
- Whether your detected JavaScript libraries have CVEs
- Whether your .env, .git, or admin paths are publicly accessible
- Whether VirusTotal, PhishTank, Spamhaus, or URLhaus list your URL
- Whether your content is structured for ChatGPT / Perplexity citation
That is not a criticism of Ahrefs. It is a different product category. We are the layer that sits next to it.
The AI search readiness gap
Ahrefs has not (yet) released a GEO (Generative Engine Optimization) module. Their SERP tracking still focuses on the blue links. Meanwhile, ChatGPT, Perplexity, and Google AI Overviews are eating click-through-rate from the top results.
ismycodesafe.com gives every URL an explicit AI Search Readiness grade based on 10 citation signals: FAQPage schema, question-format headings, citation-shaped first paragraph, table count, factual density, authority-link reciprocity, paragraph length discipline, and freshness signals.
Pricing reality
Ahrefs: Lite tier $129/mo (limited crawl), Standard $249/mo, Advanced $449/mo, Enterprise $1,499/mo. Site Audit is included but not separately purchasable.
ismycodesafe.com: Free unlimited single-URL scans (all three grades visible). $49 one-off for premium PDF with detailed per-finding fixes. $25/mo subscription auto-re-scans the URL every 30 days. No annual contract.
When to use both
If you already pay Ahrefs:
- Run Ahrefs Site Audit weekly across the full domain to catch site-wide drift
- Run ismycodesafe.com on each new landing page before deploy to catch security gaps and AI readiness issues Ahrefs does not test
If you do not pay Ahrefs:
- Run ismycodesafe.com on every URL that matters (homepage, key landing pages, top blog posts)
- Use the three grades to prioritise: a low Security grade is a ship-blocker; a low AI Search grade is a growth gap
The honest summary
Ahrefs Site Audit is the right tool inside the Ahrefs suite for site-wide technical SEO. Outside that suite, the price is hard to justify for a small team.
ismycodesafe.com is the right tool for free single-URL multi-axis scanning. Three grades, one request, no signup. We do not compete with Ahrefs on backlinks or keywords - we add the security and AI-citation layers Ahrefs does not have.
Ahrefs Site Audit vs ismycodesafe.com - FAQ
- Does Ahrefs do security scanning?
- No. Ahrefs Site Audit is a technical SEO tool - it checks for broken links, redirect chains, duplicate content, missing meta tags, and site-wide crawl health. It does not check SSL/TLS configuration, security headers (CSP, HSTS, X-Frame-Options), CVE exposure, OWASP Top 10 vulnerabilities, malware flags, or AI search readiness. Those checks require a dedicated security scanner.
- Is ismycodesafe.com a free Ahrefs Site Audit alternative?
- For single-URL scanning that includes security and AI readiness, yes. ismycodesafe.com is free and requires no account. However, it is not a replacement for Ahrefs if you need site-wide crawling across thousands of URLs, backlink analysis, keyword research, or historical rank tracking. The tools solve different problems - ismycodesafe.com adds the security and GEO layers Ahrefs does not provide.
- What does ismycodesafe.com check that Ahrefs cannot?
- ismycodesafe.com checks 180+ security issues (OWASP Top 10, CVE detection via NVD and OSV, SSL/TLS depth via SSLyze, DNS security records, 53 sensitive file paths, Shodan port exposure, VirusTotal malware flags) and 10 AI Search Readiness signals (FAQPage schema, citation-shaped headings, factual density, freshness). None of these are available in any Ahrefs tier.
- Can I use ismycodesafe.com alongside Ahrefs?
- Yes. If you already use Ahrefs, run ismycodesafe.com on new landing pages before deploy to catch security gaps and AI readiness issues that Ahrefs does not surface. Use Ahrefs for site-wide SEO health and backlink strategy; use ismycodesafe.com for the per-URL security-plus-GEO layer. The tools are complementary, not competing.
- How do I test Ahrefs Site Audit on my own site?
- Set up an Ahrefs project, run Site Audit on your domain. Ahrefs crawls your site and returns 170+ SEO checks including broken links, duplicate content, and Core Web Vitals issues. To check the same URL for security posture and AI search readiness signals that Ahrefs does not run, paste it into ismycodesafe.com. Free, no account required.