Free SEO and backlink tools

Donor pages decay. Anchors drift. Links go nofollow. These are the checks we run every week on our own backlinks, opened up to anyone. Twenty-three of them work with no signup at all; two more are free with an account. Six are token-based — five call an LLM or a paid index, and one is our MCP server for Claude — and you get 1000 free tokens the moment you sign up.

Free — no card, ever 25 tools

All free, no credit card. Most need no account at all — we rate-limit by IP and request token. Two — the Lost Backlink Detector and the Backlink Audit Score — ask for a free account so they can save your links and email you when one changes.

Free · account

Lost backlink detector

Add up to 25 backlinks and we check them weekly, then email you the week a link is removed or quietly switched to nofollow. Free monitoring — the demo of the paid product.

Weekly email alerts Open tool →
Free · account

Backlink audit score

Paste up to 50 backlinks and get a 0–100 health score with a per-link breakdown — removed links, nofollow flips, dead donor pages. Grab a shareable score badge.

0–100 score + badge Open tool →
Free · no signup

Redirect chain checker

Trace any URL through every 301, 302, 307, meta refresh, and JS redirect. See per-hop timing and SEO impact on backlinks.

Per-hop timing Open tool →
Free · no signup

Backlink health snapshot

Paste donor and target URL, get a full per-link verdict in 5 seconds: alive, dofollow, indexed, and clean of red flags.

5-second verdict Open tool →
Free · no signup

Backlink index checker

Is your backlink visible to Google? Real-time index check with the exact SERP snippet when it is in.

Index yes/no + SERP snippet Open tool →
Free · client-side

Disavow file generator

Build a Google-ready disavow.txt with validation and URL vs domain handling. 100% client-side — your list never leaves your browser.

Google-ready .txt Open tool →
Free · no signup

Nofollow / dofollow bulk checker

Paste your domain and up to 20 donor URLs. See which of your backlinks are dofollow, nofollow, sponsored, or missing — in one table.

Bulk rel audit Open tool →
Free · client-side

Anchor text distribution checker

Paste your backlink anchors and see your branded vs exact-match ratio and over-optimization risk. Nothing uploads; the math runs in your browser.

Distribution + risk Open tool →
Free · no signup

GSC anchor text analyzer

Upload your Google Search Console “Top linking text” CSV and get a count-weighted anchor distribution. Exact-match risk, branded share, over-optimization score — from the data Google already collected.

From your GSC export Open tool →
Free · no signup

Robots.txt tester

Enter a domain and path, and see whether Googlebot, Bing, and the AI crawlers can crawl it — with the exact robots.txt rule that decides each verdict.

Per-crawler verdict Open tool →
Free · no signup

Canonical tag checker

Paste a URL and see its canonical tag: self-referencing, pointing elsewhere, missing, or conflicting — plus the mistakes that quietly de-index pages.

Canonical verdict + why Open tool →
Free · no signup

On-page SEO checker

Snapshot a page’s on-page SEO in one check: title, meta, indexability, headings, social cards, images, and links — each flagged OK, warning, or issue.

Full page audit Open tool →
Free · no signup

Donor page trust audit

Vetting a page before you place a link? Get a transparent trust verdict from its on-page signals — indexability, content depth, outbound neighborhood, editorial markers. No AI, no signup.

Trust 0-100 + signal breakdown Open tool →
Free · no signup

Outbound links analyzer

Paste a URL and see every external outbound link on that page — destination domain, anchor text, and rel attribute. Grouped by domain so you can scan the neighborhood fast before placing a link.

OUTBOUND + ANCHOR + REL Open tool →
Free · no signup

Broken link checker

Paste a page and we request every link on it — internal and external — then flag the dead 404s and 410s. For cleaning up your own pages, or finding broken links to pitch your content as the replacement.

Dead-link report + status Open tool →
Free · no signup

Meta tags checker

Paste a URL and read every meta tag that matters — title, description, canonical, robots, Open Graph and Twitter Card — with a live Google result and social-share preview of how the link will look.

Tags + Google & social preview Open tool →
Free · no signup

SERP position checker

Enter a keyword and your domain. Run a live, depersonalized Google search and see whether you rank in the top 10, your exact position, and the rest of page 1 for context.

Page-1 position + competitors Open tool →
Free · no signup

Keyword cannibalization checker

Enter your domain and a keyword. One live Google search shows whether two or more of your own pages are competing on page 1 for it — splitting clicks and link authority — and which pages they are.

Page-1 self-competition check Open tool →
Free · no signup

Sitemap analyzer

Paste a sitemap URL or domain root. Get URL count, validation errors (missing loc, cross-host entries, bad dates), coverage stats, and a full sitemapindex breakdown with clickable child links.

Validation + structure Open tool →
Free · no signup

llms.txt generator

Enter your site and get a ready-to-paste llms.txt, built from your homepage and sitemap: site name, summary, and your key pages grouped into sections. Plus a straight answer on what the file does and doesn't do.

Ready-to-paste llms.txt Open tool →
Free · no signup

AI crawler access checker

Enter a domain and see which AI bots your robots.txt allows or blocks — GPTBot, ClaudeBot, PerplexityBot, Google-Extended and more — grouped by training, search, and retrieval, with the rule that decides each verdict.

Per-AI-bot allow/block Open tool →
Free · no signup

Google AI Overview checker

Enter a keyword and your domain. One live Google query tells you whether an AI Overview appears, which sources Google cites, and whether your site is one of them.

AI Overview + citation check Open tool →
Free · no signup

Hreflang validator

Paste a page URL. Check every hreflang tag — invalid language/region codes, missing self-reference, duplicates and conflicts, missing x-default — from both the HTML and the HTTP Link header.

Code + cluster checks Open tool →
Free · no signup

Schema markup validator

Paste a page URL. Extract every JSON-LD and microdata block, check it parses, and validate the Google required and recommended properties per type — plus which rich result it earns, and which types Google has retired (FAQ, HowTo).

Rich-result eligibility Open tool →
Free · client-side

Backlink ROI calculator

Enter link cost, the keyword’s monthly search volume, and target position. Get monthly traffic estimate, revenue contribution, breakeven, and a plain-English ROI verdict. AWR 2024 CTR curve. Runs in your browser.

ROI + breakeven Open tool →

Token-based — paid per-use 6 tools

When eyeballing a donor stops being a defensible answer. These tools call an LLM or a paid index per run, so they cost tokens. Signup gives you 1000 free — about 50 AI risk-score runs, or 125 dictation cleanups. No subscription, no minimums.

20 tokens / run

AI backlink risk score

An AI second opinion on a donor page. You get a 0–100 risk score plus reasoning on PBN patterns, spammy neighborhoods, topical relevance, and over-optimization. Indexation check included.

AI risk 0-100 + PDF export Sign in to run →
8 tokens / run

AI anchor text suggester

Give a target URL and keyword. Get ~20 anchor ideas across branded, exact-match, partial, naked-URL, generic, and topical — each with an over-optimization risk score and a safe-distribution tip.

20 anchors + risk scores Sign in to run →
10 tokens / run

AI outreach email generator

Give the donor URL, your URL, and the campaign type. Get a short, personalized link-building email — subject line, body, a follow-up, and honest editing tips. Free account, no purchase needed.

Email + subject + follow-up Sign in to run →
30 tokens / run

AI SEO content gap finder

Give your page URL and up to 3 competitor URLs. The tool reads all of them and lists the topics and questions the competitors cover that your page is missing — each with a concrete fix.

Ranked gap list + fixes Sign in to run →
8 tokens / run

Dictation cleanup

Turn raw voice-typing or a transcript into clean text: strips fillers and false starts, fixes punctuation and paragraphs — without changing your words.

Clean text, your words Sign in to run →
Requires paid balance

MCP server

Three LinkGuard backlink tools available inside Claude, Claude Code, and any MCP-compatible client. Token cost equals the underlying tool. Gated to accounts with at least one prior purchase.

3 tools, any MCP client Connection guide →

Frequently asked

Are these really free?

Most are fully free — no signup, no card, no token cost. We pay the fetch and compute bill ourselves; in return the tools funnel people who like the work into the paid monitoring product. Two — the Lost Backlink Detector and the Backlink Audit Score — are free but need a free account so they can save your links and email you. A handful are token-priced because they call a paid external service on every run (an LLM, or a paid index), so we can't eat that cost at scale.

Do I need to sign up to use the free tools?

Mostly no — paste your URL and run. We rate-limit by IP and use a short-lived request token to keep things working for everyone, but there's no account wall. The exceptions: two free tools that save your data (the Lost Backlink Detector and the Backlink Audit Score), and the four token-based entries (they spend money on your behalf).

What is the difference between free and token-priced?

Free tools answer questions you can derive from plain HTTP and HTML — redirects, canonicals, robots.txt, anchor stats from your own GSC export. Token tools call an external paid service on every run — an LLM (Claude) for the AI risk score and dictation cleanup, or a paid SERP index for indexation lookups. The cost passes through to the token charge.

How much do tokens cost?

Pay-as-you-go packages: $25 for 25,000 tokens (Lite), $50 for 55,000 (Standard), $100 for 115,000 (Pro), $500 for 625,000 (Agency). Signup gives you 1000 tokens for free. Tokens do not expire, and unused balance is refundable within 14 days. The AI risk score is 20 tokens per run; dictation cleanup is 8 tokens per run — so the $25 Lite pack covers around 1,250 risk-score runs or 3,125 cleanups.

Will more tools be added?

Yes. We ship new public tools as we build them for our own outreach work. This page lists everything currently live; nothing here is a placeholder or coming-soon card.