SEO Onsite Checklist 2026 (Free Template — Complete On-Site Optimization)
Complete on-site SEO checklist covering crawlability, title tags, meta descriptions, headings, URL structure, content quality, images, internal linking, schema markup, and page speed. Free download for Excel and Google Sheets.
An onsite SEO checklist should cover 9 areas: crawlability (robots.txt with AI crawlers, sitemaps, canonicals, no orphan pages, HTML-first content), title tags (unique, under 60 chars, keyword early), meta descriptions (unique, under 160 chars, with CTA), headings (one H1 per page, logical hierarchy), URL structure (short, keyword-rich, hyphens), content quality (unique, substantive, answers user intent, includes statistics for +41% AI visibility), images (alt text, compression, lazy loading), internal linking (3 clicks to any page, descriptive anchors, breadcrumbs), and page speed (LCP under 2.0s, FCP under 0.4s for AI citations, INP under 200ms, CLS under 0.1). Download the free template for Excel and Google Sheets.
On-site SEO is the foundation everything else builds on. This checklist covers every factor you control directly — from title tags to page speed to AI search readiness. CrawlRaven runs 200+ on-site checks automatically. Try CrawlRaven free for 14 days →
Key takeaways
- 45+ checks across 9 areas: crawlability, titles, meta descriptions, headings, URLs, content, images, linking, speed
- Free download in Excel (.xlsx) and Google Sheets
- Covers both traditional on-site SEO and AI search readiness (crawler access, content structure)
- FCP under 0.4s = 6.7 avg AI citations vs 2.1 for slower pages
- Or automate everything — CrawlRaven runs 200+ on-site checks in under 10 minutes
Download the SEO Onsite Checklist
45+ on-site checks across 9 categories. Pre-built with priority levels. Works in Excel and Google Sheets.
Checklist Preview — Sample Data
What is on-site SEO and why does it matter?
On-site SEO (also called on-page SEO) covers everything you control directly on your website that affects search rankings. It's the foundation that off-page signals build on — no amount of link building can compensate for broken title tags, missing meta descriptions, or slow page speed.
In 2026, on-site SEO also includes AI search readiness — ensuring AI crawlers can access your content, your pages load fast enough to be retrieved (FCP under 0.4s), and your content is structured in a way AI engines can extract and cite.
1. Crawlability
If search engines can't crawl your pages, nothing else on this checklist matters.
- robots.txt: Verify no important pages are blocked. In 2026, also ensure AI crawlers are allowed — OAI-SearchBot, Claude-SearchBot, and PerplexityBot
- XML sitemap: Valid, up to date, and submitted to both Google and Bing
- Canonical tags: Every page should have a correct, self-referencing canonical tag
- No orphan pages: Every page should have at least one internal link pointing to it
- HTML-first content: 46% of AI bot visits use reading mode — critical content must be in the initial HTML, not loaded via JavaScript
2. Title tags & meta descriptions
- Title tags: Unique for every page, under 60 characters, primary keyword near the front. Duplicate titles are one of the most common on-site issues
- Meta descriptions: Unique for every page, under 160 characters, include a call to action. Not a direct ranking factor but directly affects click-through rate
3. Headings & URL structure
- H1 tags: One per page with primary keyword. The H1 tells search engines what the page is about
- Heading hierarchy: Logical H1 → H2 → H3 structure. Don't skip levels
- URLs: Short, keyword-rich, using hyphens. No dynamic parameters in indexed URLs. Consistent trailing slash usage
4. Content quality
- Unique content: Every indexed page must have substantive, unique content. No thin pages (under 300 words) in the index
- No duplicates: Check for duplicate content across pages — especially common with parameter URLs and product variants
- User intent: Content should directly answer the question the user searched for. AI engines specifically look for direct, authoritative answers
- Statistics: Including data points boosts AI visibility by +41% per Princeton GEO research
5. Images
- Alt text: Descriptive alt text on every image. Include keywords where natural
- Compression: Use WebP or AVIF format. Properly size images for their display containers
- Lazy loading: Implement for all below-the-fold images to improve page speed
6. Internal linking
- 3-click rule: Every page should be reachable within 3 clicks from the homepage
- Descriptive anchors: Use descriptive anchor text, not "click here" or "read more"
- No broken links: Fix all broken internal links — they waste crawl budget and create dead ends
- Breadcrumbs: Implement breadcrumb navigation for both UX and SEO
7. Page speed
Google's March 2026 update now scores Core Web Vitals site-wide. And for AI search, speed directly affects citation rates.
- LCP: Target under 2.0s (lowered from 2.5s in March 2026)
- FCP: Target under 0.4s — pages meeting this earn 6.7 avg AI citations vs 2.1 for slower pages
- INP: Target under 200ms
- CLS: Target under 0.1
- Minification: Minify CSS, JS, and HTML
- Compression: Enable gzip or brotli compression
8. Schema markup
- Article schema: On all blog posts with author and dates
- FAQ schema: On pages with FAQ sections — boosts both rich results and AI citations
- BreadcrumbList: For navigation structure
- Validation: Test all schema with Google's Rich Results Test
Get the SEO Onsite Checklist
Download the checklist now. Or run a CrawlRaven audit to check all 200+ on-site factors automatically.
Related resources
Frequently asked questions
What is on-site SEO?
On-site SEO (also called on-page SEO) covers everything you control directly on your website that affects search rankings: crawlability, title tags, meta descriptions, heading structure, URL structure, content quality, image optimization, internal linking, schema markup, and page speed. In 2026, it also includes AI search readiness — ensuring AI crawlers can access and extract your content.
What is the difference between on-site and off-site SEO?
On-site SEO covers factors on your website (title tags, content, page speed, schema, internal links). Off-site SEO covers external signals (backlinks, brand mentions, review profiles, Reddit participation). Both matter — but on-site SEO is the foundation. No amount of backlinks can compensate for broken crawlability or missing meta tags.
What are the most important on-site SEO factors?
The highest-impact on-site factors: unique title tags with keywords (affects every ranking), crawlability (if Google can't find your pages, nothing else matters), page speed — especially FCP under 0.4s (6.7 avg AI citations vs 2.1 for slower pages), unique substantive content that answers user intent, and schema markup (30% improvement in AI citation rates). Fix these before anything else.
How does page speed affect AI search visibility?
Page speed directly affects AI citation rates. Pages with FCP (First Contentful Paint) under 0.4 seconds average 6.7 AI citations, while pages over 1.13 seconds drop to just 2.1 citations. AI crawlers appear to have timeout thresholds — slow pages may not be fully retrieved. After Google's March 2026 update, CWV is scored site-wide, so a few slow pages drag down your entire domain.
15+ years of growing SaaS websites through SEO | Author, 200-Point Audit Checklist
Aditi has spent 15+ years helping SaaS companies scale organic traffic through technical SEO and content strategy. She is the author of the CrawlRaven 200-Point Audit checklist used by agencies and in-house teams to systematically improve search performance.