SEO Score API vs SEO Site Checkup (2026): which should you pick?

Pick SEO Score API if

• Fits if you want a build to fail when a page's SEO score drops
• Works for developers adding page checks to their own apps or dashboards

Look elsewhere if

• Skip it if you need backlinks, keyword research or rank tracking, which it doesn't do
• Tight if you're on Free, with 20 audits a month and only 2 checks per category shown
• Pricey if you want Deep Site Audits, which start on Pro at $39 a month or $12 for a single audit
• Watch out: extra AI citation checks cost $10 for 500, and the pages don't say which AI engines are checked
• Watch out: the product is labeled as being in public beta

Pick SEO Site Checkup if

• Fits if you're a freelancer looking after 3 to 15 small sites
• Works for site owners who want each SEO problem explained in plain words

Look elsewhere if

• Too light for big sites, since deep analysis watches just 50, 100 or 300 URLs
• Skip it if AI visibility is why you're here, as it starts on Webmaster at $49
• Watch out: the 7-day trial turns into a paid plan unless you cancel in time
• Not for you if you want it wired into other tools, as no integrations or API are listed

SEO Score API

• It audits pages only: no backlinks, keyword research or rank tracking, which the vendor says to get from suites such as Ahrefs or Moz.
• Deep Site Audits come only with Pro (20 a month) and Ultra (100), or as credit packs from $12 for one audit to $499 for 100.
• Extra AI citation checks cost $10 for 500 or $36 for 2,000; the pages read do not say which AI engines are checked.
• The product is labeled as being in public beta.

SEO Site Checkup

• Plans cover 3, 5 or 15 sites, and deep analysis watches only 50, 100 or 300 individual URLs.
• AI visibility, AI content analysis, white-label reports and team seats are not on the Basic plan.
• The 7-day trial turns into a paid plan when it ends unless you cancel; cancelling keeps access to the end of the billing period.

SEO Score API

80+ checks per URL

Titles, headings, canonical tags, robots.txt, sitemaps, structured data, Open Graph, page weight and accessibility, each marked pass, warning or fail with a fix.

AI readability and GEO audits

26 checks on whether AI crawlers such as GPTBot and ClaudeBot can read a page, including llms.txt and bot access; GEO audits measure visibility to AI search.

SXO, AEO and AIO scores

Paid plans score search experience, how well a page answers questions for snippets and AI Overviews, and how easily language models can take it in.

Deep Site Audit

An asynchronous audit of about 90 seconds against a 14,000+ check catalog across nine areas, with an AI pass and a scan for leaked API keys.

Monitoring and history

Watch scores on a set of URLs, pull a page's score history, run batch audits, and share HTML reports and score badges.

SDKs, CI and agents

Python, Node.js and Go clients, an n8n node, an MCP server, a Claude Code skill and a GitHub Action that fails a build when a score drops.

SEO Site Checkup

SEO checkups

Audits any page against 70+ SEO factors, from meta tags to site structure, with plain-English explanations and steps to fix each issue.

Deep domain analysis

A full crawl of each tracked site (3, 5 or 15 by plan) for a health and domain score, plus 50 to 300 monitored URLs and weekly score monitoring.

LLM Visibility Checker

From Webmaster up, tracks how often ChatGPT, Gemini, Perplexity, Claude and other AI engines mention your brand, in which prompts, against competitors.

Keyword tracking and research

Track 50 to 300 keyword positions across pages and countries, find top keywords and new keyword ideas, and compare against rivals.

Uptime and speed monitoring

Checks that sites stay up from 1, 3 or 5 locations and measures page load speed across key pages.

Backlinks and white-label reports

A backlinks checker follows referring domains and new links; Webmaster and Professional export branded reports for clients.

SEO Score API

• Free$0

  20 audits a month on 50+ checks, with partial results, no history and no AI citation tracking.

• Starter$5

  per month for 200 audits, billed monthly

  All 80+ checks, SXO, AEO and AIO scores, AI citation tracking with 15 prompts, 5 monitored URLs and 30 days of history.

• Basic$15

  per month for 1,000 audits, billed monthly

  Adds 1 GEO audit a month, 30 tracked prompts, 10 monitored URLs and 90 days of history.

• Pro$39

  per month for 5,000 audits, billed monthly

  20 Deep Site Audits, 5 GEO audits, 75 tracked prompts, 25 monitored URLs, a year of history and priority support.

• Ultra$99

  per month for 25,000 audits, billed monthly

  100 Deep Site Audits, 10 GEO audits, 200 tracked prompts, 50 monitored URLs, unlimited history and dedicated support.

• EnterpriseCustom

  Custom audit volume and limits on an annual agreement with invoicing. Through sales.

SEO Site Checkup

• Basic$29

  per month for 3 sites, billed yearly ($39 billed monthly)

  For freelancers: unlimited page audits, deep analysis of 50 URLs, 50 tracked keywords, 1 competitor and uptime checks from 1 location. No AI visibility.

• Webmaster$49

  per month for 5 sites, billed yearly ($69 billed monthly)

  100 URLs, 100 keywords, 3 competitors, LLM Visibility Checker, AI content and visual SEO analysis, white-label reports and 3 seats.

• Professional$99

  per month for 15 sites, billed yearly ($129 billed monthly)

  For agencies: 300 URLs, 300 keywords, 5 competitors, uptime checks from 5 locations, the AI tools, white-label reports and 5 seats.

SEO Score API

• Annual discount

  Two months free with annual billing

  SEO Score API bills paid plans yearly for the price of 10 months: Starter is $50 a year and Pro $390, with monthly allowances unchanged.

SEO Site Checkup

• Annual discount

  Save 25% with yearly billing

  The pricing page lists yearly billing at up to 25% less: Webmaster is $49 a month billed yearly ($588) instead of $69 monthly.