Free structural SEO tools

Single-purpose checks powered by the RankForge crawler — including whether ChatGPT, Perplexity and Google's AI answers can actually reach and read your pages. Each one runs a real crawl of up to 100 pages, no account required. Create a free account for the full audit, the specific link fixes, and a client-ready PDF.

Why free tools?

Every tool runs the exact same crawler the full RankForge audit uses. Instead of handing you the whole report, each one zooms in on a single SEO problem and answers it fast. Run one to scratch an itch — or create a free account to get the complete structural audit, with the specific link fixes for every issue at once.

AI Visibility

Check whether ChatGPT, Perplexity and Google's AI answers can reach, read and cite your site.

AI visibility

Reachable by answer engines6 of 6
Readable without JavaScript41% of pages
Identity schemaOrganization

AI Visibility Checker

One check for AI search visibility: whether ChatGPT, Perplexity and Claude can reach your pages, read them, and identify your brand.

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What each bot sees

GooglebotFull
BingbotFull
GPTBotEmpty shell
PerplexityBotEmpty shell

Can Google Render My Site?

See your site the way search engine and AI bots do. Detect JavaScript-rendered content that crawlers may not see. Free, no account required.

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AI / GEO readiness

llms.txtMissing
Identity schemaFound
Rendered content88%

llms.txt & GEO Checker

Check your site's GEO readiness: llms.txt, identity (Organization/Person) schema, and how much of your content LLMs can actually read. Free, no account.

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AI answer engines

OAI-SearchBotAllowed
PerplexityBotBlocked
Claude-UserAllowed

AI training crawlers

GPTBotBlocked
CCBotBlocked

AI Crawler Checker

Check whether your robots.txt blocks ChatGPT, Perplexity, Claude and Google AI. Separates answer engines from training crawlers.

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Internal Linking

Find the links your site is missing and the pages going unseen.

12

Orphan pages

example.com/blog/2021-pricing-update
example.com/products/legacy-widget
example.com/guides/old-migration

Orphan Page Checker

Find orphan pages — the pages with zero inbound internal links that Google struggles to find and rank. Crawls up to 100 pages.

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18

Link opportunities

example.com/blog/guide → example.com/services/seo
example.com/blog/audit → example.com/pricing
example.com/about → example.com/case-studies

Internal Link Checker

Find the internal links your site is missing. RankForge maps your link graph and surfaces the highest-impact connections to add. Free, no account.

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Pages by click-depth

Depth 0–114
Depth 238
Depth 325
Depth 4+17

Crawl Depth Checker

See how many clicks from the homepage each page sits. Deep pages get less authority and rank worse. RankForge maps crawl depth. Free, no account.

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Anchor text mix

Descriptive58%
Generic31%
Exact-match11%

31% “click here” / “read more”

Anchor Text Checker

Audit your internal anchor text: generic anchors, over-optimised exact-match repetition, and pages missing descriptive links. Free, no account.

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Authority & Structure

See where ranking power pools — and which pages are starved of it.

Authority by layer

Homepage100
Pillars91
Clusters59
Deep31

Authority Flow Checker

See how internal authority (PageRank) flows through your site — which pages hoard it and which are starved. Free analysis, no account.

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64%

Avg cluster strength

SEO guide82
Linking58
Crawling34

Topical Authority Checker

Check how strongly your supporting content reinforces your pillar pages. RankForge measures cluster strength and pillar support. Free, no account.

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Content & On-Page

Catch competing, duplicate, and under-optimised pages.

On-page checks

18

Pass

4

Warn

2

Fail

Missing meta description · 2 H1s

On-Page SEO Checker

Check your on-page SEO: title tags, meta descriptions, headings, canonicals, Open Graph, and structured data. Free, no account required, results in minutes.

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3

Competing groups

“running shoes”

example.com/blog/best-running-shoes
example.com/shop/running-shoes

Keyword Cannibalization Checker

Keyword cannibalization tool: find pages competing for the same keyword and splitting ranking power. Groups them and shows the fix.

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5

Near-duplicate pairs

Match

94%

example.com/products/widget-blue
example.com/products/widget-red

Duplicate Content Checker

Find near-duplicate pages that waste crawl budget and split ranking signals. RankForge compares your pages and flags the matches. Free, no account.

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Technical & Crawlability

Crawl errors, sitemaps, and the security signals that affect trust.

7

Broken / error URLs

404 · example.com/old-blog/post-12
500 · example.com/checkout/legacy
301 chain · example.com/home → example.com/

Broken Link Checker

Find broken links, 404s, and server errors on your site. RankForge crawls your pages and reports every non-200 status code. Free, no account, up to 100 pages.

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120

In sitemap

96

Crawled

24 in sitemap, not reachable
6 crawled, missing from sitemap

Sitemap Checker

Check your XML sitemap against a real crawl. Find sitemap URLs that aren't reachable and crawled pages missing from your sitemap. Free, no account.

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Security signals

SSL / TLSValid
HSTS headerMissing
DMARCSet
CSP headerMissing

Website Security Checker

Check your site's security in seconds: SSL/TLS certificate, HTTP security headers (HSTS, CSP), and email records (SPF, DMARC).

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Need more than one check?

Run the full structural audit

Every tool above is one slice of the same audit. Get all of them at once — plus the exact internal links to add (source, target, anchor, and paragraph), the authority map, and a client-ready PDF.