Semrush Site Audit is a deep technical SEO crawler inside a paid suite, with a free account limited to 100 pages a month. PostCliq is a free audit that reads up to 50 public pages each week and ranks findings by their effect on enquiries, not rankings. If your job is technical SEO at scale, or you already pay for Semrush, use Semrush. If you need to know why visitors do not enquire and what to fix first, start with PostCliq.
At a glance.
Question
PostCliq
Semrush Site Audit
The basics
Main job
Find what stops visitors enquiring
Find technical SEO issues
Free to use
Yes.Free, with clear weekly limits: one site (five for agencies), one audit a week, up to 50 pages
Partly.100 pages per audit and 100 pages a month
Look without an account
Yes.A quick look at ten key pages in under a minute
No.Needs a Semrush account
Paid plans
No.PostCliq is free, with clear weekly limits
Yes.From USD 139 a month on monthly billing
Pages per audit on paid plans
No.No paid plan: 50 public pages per free audit
Yes.Up to 20,000 or 100,000, depending on plan
What it checks
Enquiry path (forms, calls to action, contact)
Yes
No
Technical SEO (crawlability, links, tags)
Partly.Search visibility is one of seven categories
Yes.Its core purpose
Uses your GA4 enquiry rates and Clarity behaviour
Yes.When you connect them. Read-only
No.Not part of the audit
Keyword, backlink and competitor research
Partly.Estimated visits, top searches, top pages, five competitors and authority. No research tool
Yes.In the wider Semrush suite
AI visibility
Partly.Nine buyer questions a week with Claude and web search. Free
Yes.Prompt tracking across ChatGPT, Perplexity, Gemini and Google, on paid plans
Website health score with the enquiry path weighted most
Yes
No.Site Health scores technical SEO
Acting on it
Ranks what to fix first
Yes.By effect on enquiries
Partly.By effect on search health
Plain-English fix with a way to verify
Yes.Every finding
Partly.Issue descriptions and how-to-fix notes
Checked 16 October 2026. Sources: Semrush pricing (semrush.com); Semrush Knowledge Base, pages per audit (semrush.com). PostCliq facts from postcliq.com. Features may change. No claim of complete feature parity.
Which should you choose?
Choose Semrush if
You run SEO as a discipline and need its depth of technical checks.
You need tens of thousands of pages crawled.
You also want keyword, backlink and competitor data in one paid tool.
Choose PostCliq if
You run a lead-generation site and your goal is enquiries, not rankings alone.
You need three fixes to make first, with evidence.
You want it free, with no card.
You want to know if AI assistants name you, free.
Use them together.
Split the jobs
Run Semrush for technical SEO health and PostCliq for the enquiry path. They overlap a little on speed and search access and otherwise answer different questions.
Fix overlaps once
Where both flag the same issue, such as a slow page, fix it once. PostCliq’s weekly history shows whether it stayed fixed.
It is not a full technical SEO crawler. Search visibility is one of seven categories.
It is not a keyword, backlink or rank-tracking tool. Its Google picture is an estimate for your own site.
It is free with clear weekly limits, not unlimited: one website for a brand, five client sites for an agency, one audit per site each rolling seven days.
It does not fix your website, guarantee results or certify security. WP Creative can make changes, as a separate and optional service.
Questions people ask.
Is Semrush Site Audit free?
Partly. A free Semrush account can audit 100 pages per audit and 100 pages per month. Paid plans start at USD 139 a month on monthly billing, with lower prices on annual billing, and crawl far more pages.
Is PostCliq an SEO audit?
Partly. Search visibility is one of its seven categories, but PostCliq ranks everything by the effect on enquiries, with the enquiry journey weighted most. For deep technical SEO, a dedicated crawler goes further.
Which is better for a small B2B website?
If the site’s job is enquiries and you have no SEO specialist, PostCliq gives you a shorter, ranked list with evidence. If organic search growth is the main goal, a dedicated SEO audit such as Semrush goes deeper.
Can I use both?
Yes. They overlap a little on speed and search access and otherwise answer different questions. Use Semrush for SEO health and PostCliq for the enquiry path, and fix anything both flag once.
How many pages does PostCliq check?
Up to 50 public pages per audit, with up to five rendered in a real browser, once per site each rolling seven days. A quick look at ten key pages takes under a minute and needs no account.
Two ways to start.
Run the free audit
Type your domain, see a quick look at ten key pages in under a minute, then create a free account for the full report. No card.