Grade any page in seconds. We score it across four areas — SEO, performance, mobile-friendliness and security — roll them into one 0–100 score, and list the top fixes. A fast snapshot before the full, prioritized audit.
⚡ Interactive demo — sample data
Overall score: 68/100 — solid SEO and mobile, but performance and security need work.
Overall68 / 100Warning
SEO84 / 100 — title, description and H1 look goodLooks good
Performance55 / 100 — 6 render-blocking scripts, no compressionWarning
Mobile90 / 100 — responsive with a proper viewportLooks good
Security40 / 100 — HTTPS on, but HSTS and CSP headers missingIssue
Grade any page in seconds. We score it across four areas — SEO, performance, mobile-friendliness and security — roll them into one 0–100 score, and list the top fixes. A fast snapshot before the full, prioritized audit.
How it works
Enter your page URL
Paste any public URL and run the grade. We fetch the page once and inspect it across four areas at the same time — SEO, performance, mobile-friendliness and security — so the whole check takes seconds.
Read your score and the top fixes
You get a single 0–100 overall score plus a score for each of the four categories, followed by a plain-language list of the biggest issues holding the page back — each one labeled by category so you know where to start.
Fix the issues and re-grade
Work down the top-fixes list — tighten a title, enable compression, add a viewport tag, turn on a missing security header — then run the grade again to watch the number climb. When you want the whole site graded across every page and category, run the full audit.
What we check
Overall score (0–100) — A single grade that averages the four category scores below, so you can track the page's health at a glance and compare it over time or against a competitor.
SEO — Title tag length (10–60 chars), meta description (50–160 chars), a single H1, a canonical tag, and image alt-text coverage — the on-page basics search engines read first.
Performance — Raw HTML weight (we flag pages over ~100 KB), number of script files, render-blocking scripts (no async/defer), and whether gzip/brotli compression is enabled — the page-weight factors behind load speed.
Mobile-friendliness — A viewport meta tag with width=device-width and the presence of responsive CSS (media queries) — the signals behind Google's mobile-first indexing.
Security — HTTPS plus the key security headers — HSTS, Content-Security-Policy, X-Content-Type-Options and X-Frame-Options — that protect visitors and build trust.
Prioritized top fixes — The biggest issues across all four areas, gathered into one ranked list with the worst (red) problems first, so you spend your time where it moves the score most.
Common issues we catch
A great-looking page that still scores low — A page can look polished to a visitor and still miss a title tag, run on HTTP, or ship no security headers — none of which show up in the browser but all of which crawlers and this grader catch.
Missing or duplicate title and description — No title, a title over 60 characters, or a missing meta description are the most common SEO point-losers — quick to fix and high-impact for click-through in search results.
Render-blocking scripts — Scripts without async or defer force the browser to stop and load them before showing content, hurting your performance score and real-world load speed.
No compression — Serving uncompressed HTML/CSS/JS wastes bandwidth and slows every visit. Enabling gzip or brotli is usually a one-line server change that lifts the performance score.
Not mobile-ready — A missing viewport tag (or one without width=device-width) means the page won't scale on phones — a serious problem under mobile-first indexing, where Google ranks the mobile version of your page.
Missing security headers — HTTPS alone isn't enough; without headers like HSTS, CSP and X-Content-Type-Options the page is more exposed and looks less trustworthy in security audits.
JavaScript-rendered content — This grade reads the raw HTML. If your content is injected by JavaScript after load, the SEO checks (and search crawlers that don't render JS) may see less than a visitor does — worth checking separately.
Where this matters
Google & Bing — Every category here maps to something the major search engines weigh — on-page SEO, page experience/Core Web Vitals, mobile-first indexing, and HTTPS as a ranking signal.
Mobile devices — The mobile checks reflect how the page behaves on phones, which is the version Google indexes and the majority of real traffic for most sites.
All browsers (Chrome, Safari, Firefox, Edge) — The security-header and HTTPS checks affect how every modern browser treats your site, including the 'Not secure' warning Chrome shows on non-HTTPS pages.
WordPress, Shopify, Wix & other platforms — The fixes apply no matter what you're built on — most are theme settings, plugin toggles, or server/CDN options rather than custom code.
Full Custom Web Audit — This is a one-page snapshot of four areas; the full audit grades your entire site across 12 categories with a prioritized, revenue-ranked fix list.
Frequently asked questions
What is a website grader?
It's a quick tool that scores a web page across several health areas and gives you one overall number plus the top things to fix. It's a fast way to benchmark a page before committing to a deeper audit.
What does the score actually measure?
Four areas: SEO (title, description, H1, canonical, image alt text), performance (page weight, scripts, compression), mobile-friendliness (viewport and responsive CSS), and security (HTTPS and key security headers). The overall score is the average of the four.
What's a good website score?
Aim for 80+ overall, with no category sitting in the red. 50–79 means there are clear, worthwhile fixes; under 50 means something fundamental — like no HTTPS, no viewport tag, or a missing title — needs attention first.
Why is my score lower than I expected?
Usually it's the invisible stuff: missing security headers, no compression, a title that's too long, or no canonical tag. These don't change how the page looks but each costs points — and they're typically fast to fix.
Does this check my whole website?
No — it grades the single URL you enter. That's perfect for spot-checking your homepage or a key landing page. To grade every page across all 12 categories, run the full Custom Web Audit.
Is the score the same as Google's ranking?
No. It's a health snapshot of factors that influence rankings and user experience, not a prediction of where you'll rank. Search position also depends on content, links, competition and intent — which the full audit digs into.
How long until fixes improve my score and rankings?
Your score updates the moment you re-run the grade. Search engines reflect changes the next time they crawl the page — often days to a few weeks — and you can speed that up by requesting indexing in Google Search Console.
My content is built with JavaScript — does that affect the score?
It can. The grader reads the raw HTML, so content added by JavaScript after load may not be counted in the SEO checks — the same blind spot many crawlers have. If your page relies heavily on JS, check it with our JavaScript Rendering Checker too.
This is one of several free SEO tools from Custom Web Audits.
For a complete, prioritized analysis of your whole website,
run a full audit.
