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Cassian™ vs SEO audit tools

An audit tells you what was wrong on Tuesday.

Site audit tools are good at what they are for: crawl the site, grade it against best practice, hand back a prioritised list. That is genuinely useful once. The problem is that a store is not a static site — an app update rewrites title tags, a theme deploy drops product schema, a migration leaves canonicals pointing at the old URLs — and an audit you ran last quarter says nothing about any of it. This is the difference between auditing and monitoring, and when each is the right tool.

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The audit scored 92. Six weeks later a theme update had blanked the title tags on every product page.

Side by side

Every row says which tool it favours, including the 2 that favour SEO audit tools. If something here is out of date, tell us and we'll correct it.

Depth of a single crawl

SEO audit tools
Cassian™
Page limits by plan, from 10 pages on the free tier to 5,000 on Guardian.
SEO audit tools
Very deep — dedicated crawlers routinely handle hundreds of thousands of URLs.

Keyword and rank tracking

SEO audit tools
Cassian™
Not offered.
SEO audit tools
Core to most SEO suites, alongside backlink data and competitor keyword research.

Runs continuously

Cassian™
Cassian™
Scans weekly on the free plan and daily from Protector, reporting what changed rather than the whole list again.
SEO audit tools
On demand or on a schedule you set; the output is a full report each time.

Alerts when something regresses

Cassian™
Cassian™
Yes — findings route to email, Telegram, Slack or Discord by severity.
Email on every plan; other channels from Protector
SEO audit tools
Varies; alerting is usually secondary to reporting.

Reads the store's own data

Cassian™
Cassian™
Yes — orders, prices and stock through the platform's admin API.
Every plan with a connected store
SEO audit tools
No. Audit tools crawl the storefront like any other site.

Product schema and AI-readiness checks

Cassian™
Cassian™
Product, Organization, Breadcrumb, FAQ and Review schema checked for presence and required fields, plus llms.txt once a store is connected.
Schema checks on every plan; llms.txt once a store is connected
SEO audit tools
Structured data validation is common; ecommerce-specific field completeness less so.

Core Web Vitals

Comparable
Cassian™
PageSpeed Insights daily, mobile and desktop separately, with 30-day trends.
SEO audit tools
Usually included, often with deeper lab diagnostics.

Choose SEO audit tools if…

  • You need keyword research, rank tracking or backlink analysis — Cassian™ does none of those.
  • You need to crawl a very large site in a single pass.
  • You are doing a one-off migration audit and want maximum depth on one date.
  • Your work is SEO strategy rather than store operations.

Choose Cassian™ if…

  • You have already fixed the audit findings and want to know when something regresses.
  • The failures that worry you are operational — orders, prices, stock, availability — not just organic traffic.
  • You want an alert when a theme update blanks your title tags, not a report you have to remember to run.
  • You would rather have one health score that moves than a hundred-page PDF each quarter.

FAQ

Common questions

Is Cassian™ an SEO tool?
Partly. It runs deterministic technical SEO checks on every page it scans — titles, meta descriptions, heading hierarchy, canonicals, alt text, Open Graph, robots directives and product schema completeness — and it tracks Core Web Vitals daily. It does not do keyword research, rank tracking or backlink analysis, and it is not trying to. If those are your job, keep your SEO suite.
Should I run an audit first and then monitor?
That is the right order. An audit is a starting point: run one, fix the critical findings, get the noise floor low. After that the useful question stops being “what is wrong?” and becomes “what changed?” — which is a monitoring question, and one an audit cannot answer no matter how often you rerun it.
Can Cassian™ replace my SEO agency's tooling?
No, and it would be a strange thing to try. An agency needs research and reporting tools. What Cassian™ adds is the continuous layer between engagements — telling you the week a title tag disappeared rather than at the next quarterly review.

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