Best Website Audit Software for 2026: 12 Options Compared by Use Case

SE Ranking is the pick for most teams because the entry Core plan does not feel like an entry plan: a 250,000-page audit allowance, 2,000 keywords tracked daily, 10 projects and AI visibility across five engines. For a small agency or an in-house team, that is the audit, the rank tracking and the AI reporting in one subscription, and the price works out to about $103 a month on annual billing.

The trade-off is depth against the biggest suites. The backlink index is smaller than Semrush or Ahrefs, and some reviewers report small differences in rank accuracy and search-volume estimates. If you want the cheapest route to a serious audit plus daily tracking, start here; if backlink research is the main job, look at Ahrefs instead.

Semrush is the deepest bench in this list. The entry SEO plan audits 100,000 pages a month with more than 130 checks, and pairs the audit with a keyword database Semrush puts at more than 27 billion keywords, plus backlink analysis and Position Tracking. If your team already lives in Semrush for research, the audit is a natural extension rather than another subscription to manage.

It is also the priciest way in among the suites, and the extras add up: additional users start at $45 a month, and AI prompt tracking needs the $199 Starter plan. The free account is genuinely useful for a single small site, but its audit is capped at 100 pages a month. Buy Semrush when you need the research depth, not just the crawl.

Ahrefs Site Audit is a module inside the full Ahrefs suite, not a standalone product. The $29 Starter plan is the cheapest way into this list, and it checks a site for more than 170 technical issues with a Health Score per crawl and scheduled re-crawls that keep an issue history. What you are really buying is the research behind the audit: the backlink index and the 110-billion-keyword database.

The limits are the credits and the add-ons. Starter carries 200 report credits a month, and AI visibility through Brand Radar costs extra. There is no free trial, though verified site owners get Site Audit free through Ahrefs Free. For teams already paying for Ahrefs, the audit is an easy yes; as a first audit tool on its own, the cheaper dedicated crawlers give you more crawl for less.

Screaming Frog is the crawler technical SEOs learned on. The paid licence is £199 a year per user — about $279 in the US view — free for 500 URLs. It checks a site for more than 300 issues, renders JavaScript, extracts custom data with XPath or regex, and pulls in Analytics, Search Console and PageSpeed. Nothing else here gives you this much crawl for this little money.

What you do not get is guidance. The output is raw data tables, and the tool runs on your own machine, so large crawls depend on your memory and storage. There is no cloud scheduling or team sharing, and juniors need a senior to turn findings into a fix list. Choose it when the crawl itself is the job; choose Sitebulb when the report must explain itself to a client.

Sitebulb is the friendliest dedicated crawler in this list. Every finding arrives as a prioritized Hint with a plain-English explanation of what is wrong and how to fix it, and the crawl maps turn site structure into a picture a client can follow. Lite starts at $18 a month for 10,000 URLs per audit, with JavaScript crawling and Search Console, Analytics and Sheets integrations on every plan.

The limits are the desktop model and the caps. There is no free plan, only a 14-day trial, and scheduling, audit comparisons and custom PDF reports need the $42 Pro plan. Lite tops out at 10,000 URLs, so large sites need Pro or the cloud plans. Pick Sitebulb when the audit report has to be readable by the person paying for it.

Moz Pro is the friendliest suite in this list, and it owns Domain Authority — the 0–100 site-strength score that appears in countless client reports. Starter costs $49 a month and bundles Keyword Explorer, Link Explorer, Site Crawl and rank tracking, which is a lot of tool for a team that is still learning SEO. Site Crawl runs automated weekly audits and flags issues in plain language.

The audit is the gentlest part of the package, not the deepest. Starter covers one site and 20,000 pages crawled a month, the backlink index is smaller than Ahrefs and Semrush, and AI Visibility stays in beta until the $179 Medium plan. Buy Moz for the metrics and the learning curve; buy a dedicated crawler if audit depth is the job.

SEOptimer is built for selling audits, not just running them. A full audit lands in about 20 seconds: more than 100 on-page checks, one overall score and fixes in priority order, ready to send as a branded PDF from the $39 White Label plan. The $59 plan adds an embeddable audit form that turns your own website into a lead-generation tool, which no other entry plan in this list does.

The audit itself is lighter than the suites. DIY SEO allows 4 crawls a month on a single website, there is no serious backlink index or PPC data, and the free tier is a single-page check rather than a site crawl. Buy it when the deliverable matters as much as the diagnosis; buy a crawler when you need to audit thousands of pages.

Sitechecker is the flat-priced all-rounder in this list: the $99 Basic plan audits 10,000 pages, tracks AI visibility across ChatGPT, Gemini and Google AI Overviews, and monitors the site for changes between crawls, all with unlimited users. There are no per-seat fees and no add-on ladder for the core features, so the bill is the plan price.

The limits are the allowances. Basic covers 5 websites and 100 tracked keywords, so a multi-site agency moves to Standard at $249 a month, and white-label reports start higher still. There is no free plan, and the refund window is 48 hours. Pick Sitechecker when one flat subscription has to cover audits, monitoring and AI visibility for a small team.

Seobility is the budget all-in-one with a free plan that is actually usable: one project, a small-site audit and 10 tracked keywords with no card required. Premium costs €59.90 a month and raises the crawl to 25,000 pages per project, adds 300 tracked keywords, backlink monitoring and the TF*IDF content tool, plus Google AI Overview tracking. For a solo owner or a freelancer, that is a full toolkit for less than a suite entry plan.

The trade-offs are currency and team features. Prices are in euros plus VAT, so the dollar cost moves with the exchange rate, and there are no member accounts or white-label reports below Agency at €209.90 a month. Multi-engine prompt tracking is still marked coming soon, so buy it for the audit and the AI Overviews coverage, not for ChatGPT prompt tracking yet.

JetOctopus is the large-site specialist. The Growth plan pairs cloud crawling with log-file analysis, so you see what Googlebot actually crawled instead of what the site contains, alongside GSC and GA4 data and an AI Bots Analyzer that reports ChatGPT and Claude traffic. Growth covers 500,000 crawled URLs and 2 million log lines a month, with JavaScript rendering and crawl comparison included.

It is also the most expensive self-serve tool in this list at $349 a month, and log analysis has a real learning curve — teams without technical SEO maturity will underuse it. White-label reports wait until the $1,559 Ultra plan. Choose JetOctopus when the site is large enough that crawl budget and bot behavior decide rankings; smaller sites get the same answers cheaper elsewhere.

OnCrawl is the crawl-budget specialist for large or complex sites. Its zero-sampling crawls count every URL and its log analysis counts every bot hit, so nothing is estimated from a sample, and the two data sets sit in one analysis layer with JavaScript rendering and custom segmentation. That combination is what enterprise teams buy it for: proof of where crawl budget goes, not a summary of it.

The buying process is the honest limitation. OnCrawl publishes no starting price, so every deal runs through sales, and log analysis sits on higher tiers rather than the entry plan. There is no self-serve checkout for a small site. Pick it when unsampled crawl and log data justify a sales cycle; otherwise JetOctopus publishes its price and starts lower.

Lumar, formerly DeepCrawl, is the enterprise backbone in this list. It crawls at multi-million-page scale in the cloud, renders JavaScript, compares raw and rendered pages, and joins scheduled crawls with log-file analysis and a GraphQL API across multi-domain dashboards. Monitor and Protect add always-on regression checks and pre-production testing, so issues are caught before they ship.

Everything about the purchase is enterprise too: quote-only annual contracts, with third-party data putting entry around $12,000 to $32,000 a year, and no self-serve trial — evaluation runs through the sales team and a demo. Below roughly 500,000 pages it is more platform than the job needs. Buy Lumar when the site is big enough that audit scale is the constraint.