Free website check
The website check
in 30 seconds.
Enter your URL and get a detailed analysis of SEO, performance, security and technology in seconds. For companies of every size in Switzerland, Germany and Austria.
Free, no login. The report appears on screen right away and arrives by email.
This is what your report looks like.
Our own website as an example, with the raw results from 05.09.2026, next to it a client website (swissrailservices.com) for comparison.
Website check frascati.ch
30 individual checks in four categories, each scored from 0 to 100.
Overall score
Average of SEO, performance, security and technology
frascati.ch, 24 of 30 checks passed
SEO
9 of 10 checks passed
Performance
4 of 7 checks passed
Security
5 of 6 checks passed
Technology
6 of 7 checks passed
Checks per category
Passed and open: where the six open checks are
- passed
- open
For comparison: a client website
Overall score of both websites, same measurement on the same day
frascati.ch
swissrailservices.com
Open checks
6 of 30, with category, finding and status
- Image Alt TextNot passed
10 of 55 images without alt text · SEO
- JavaScript FilesNot passed
16 external scripts · Performance
- HTML SizePartly
273 KB · Performance
- Render-Blocking ScriptsPartly
1 blocking script(s) · Performance
- Content Security PolicyNot passed
No content security policy · Security
- Print StylesheetPartly
No print stylesheet present · Technology
| Status | Check | Category | Finding |
|---|---|---|---|
| Not passed | Image Alt Text | SEO | 10 of 55 images without alt text |
| Not passed | JavaScript Files | Performance | 16 external scripts |
| Partly | HTML Size | Performance | 273 KB |
| Partly | Render-Blocking Scripts | Performance | 1 blocking script(s) |
| Not passed | Content Security Policy | Security | No content security policy |
| Partly | Print Stylesheet | Technology | No print stylesheet present |
Source: internal raw measurement with the frascati.ch website check, 05.09.2026, unadjusted. 30 individual checks per website; category = checks passed divided by all checks, overall score = average of the four categories.
What we check.
SEO
10 checksTitle, meta tags, headings, alt text, Open Graph, structured data
Performance
7 checksLoad time, file size, JavaScript, CSS, lazy loading, HTML size
Security
6 checksSSL/HTTPS, HSTS, Content Security Policy, clickjacking protection
Technology
7 checksMobile viewport, favicon, robots.txt, sitemap, language, charset
What the check measures, and when it gets tight.
The four areas measure different things, and only one of them has generally accepted thresholds. Here is what gets measured and how to read the result.
SEO is mostly craft, not opinion
Whether a page has a title, whether that title appears once and not three times, whether there is exactly one H1, whether images carry alt text, whether a canonical address is set and whether structured data is valid at all: that can be looked up, not debated. These checks either pass or they do not.
Performance is the only area with fixed limits
The three values in the table are the only ones in the whole check with a generally accepted limit. Everything else is interpretation. That is why we show the number and the threshold next to it, instead of a score out of ten.
Security checks the obvious
Does the site run over HTTPS, is the certificate valid, does the server set the usual protective headers, does it needlessly reveal its version. These are not penetration tests, they are the things every visitor and every bot sees anyway.
Technology decides whether the rest arrives at all
A page that does not fit a phone screen, whose images ship as uncompressed JPEG or whose addresses run through three redirects loses visitors before the first sentence is read.
The three values Google publishes itself
Google calls them Core Web Vitals and sets the thresholds publicly. They apply to the 75th percentile of real page views, not to a lab value.
| LCPLargest Contentful Paint | How long it takes for the largest visible element to load, usually the hero image or the headline. | up to 2.5 seconds | over 4.0 seconds |
|---|---|---|---|
| CLSCumulative Layout Shift | How much the content jumps while loading. Anyone who has aimed at a button and missed knows the feeling. | up to 0.1 | over 0.25 |
| INPInteraction to Next Paint | How long the page takes to respond visibly to a click or an input. | up to 200 milliseconds | over 500 milliseconds |
Thresholds according to web.dev, Google, section «Core Web Vitals», retrieved 15 September 2026. Between «good» and «poor» lies the «needs improvement» range.
You can look up most of this yourself: right-click, «View page source», and search for «<title>» and «<h1». For the three values above there is Google PageSpeed Insights, free and without a login. Our check does the collecting for you and writes down what the finding means.
Common questions about the check.
Answer
Is the website check really free?
Yes, completely free and without a login. Enter a URL and get a report on SEO, performance, security and technology right away.
What is checked?
SEO fundamentals, load time and Core Web Vitals, security (HTTPS), mobile readiness and the tech stack in use.
How long does it take?
A few seconds: the report appears directly on the page.
Fabiano Frascati
Founder of Frascati