Audit of
info.cern.ch
http://info.cern.ch/
11 findings (5 high, 3 medium, 3 low) · 1272 ms · audited Sat, 26 Sep 2026 23:36:48 GMT
Several fundamentals are missing or broken. Fixing the top items first will move rankings fastest.
This page is the report — copy the address from the browser bar to share it, or print it to PDF.
Fix this first
Ranked by impact — each point we deduct is weighted by how much it affects rankings.
Meta description
High impactonpageThere is no <meta name="description"> tag in the page HTML.
Why it matters: Google uses the description as the two-line pitch under your headline; without one it scrapes random page text, which reads badly and loses clicks.
Fix: Add <meta name="description" content="..."> with 70–160 characters: what the page offers, who it is for, and a reason to click.
Mobile viewport tag
High impactonpageThere is no <meta name="viewport"> tag.
Why it matters: Without a viewport tag phones render the page zoomed out and unreadable, and Google treats it as not mobile-friendly — most local search happens on a phone.
Fix: Add <meta name="viewport" content="width=device-width, initial-scale=1"> in <head>.
Page title
High impactonpageThere is no <title> tag in the page HTML.
Why it matters: The title is the clickable headline in Google results — with nothing there, Google invents one, and it is usually worse than yours.
Fix: Add a unique <title> in <head>: 30–60 characters, the page topic first, then the brand — e.g. "Emergency Plumber in Leeds | Acme Plumbing".
HTTPS
High impacttechnicalThe page is served over plain HTTP (http://info.cern.ch).
Why it matters: Browsers flag HTTP pages as "Not secure" and HTTPS is a confirmed ranking signal, so this costs trust and rankings at the same time.
Fix: Install a certificate (free via Let's Encrypt) and redirect all http:// traffic to https:// with a single permanent redirect.
Score breakdown
The overall score is a weighted average of the four categories (weights shown in brackets).
On-page (weight 35%)
7What a searcher and Google see in the listing: title, description, headings, images, mobile.
Technical (weight 30%)
62Whether the page can be crawled and indexed, and whether its links work.
Content (weight 20%)
73How much real, readable content the page carries and how it links internally.
Performance (weight 15%)
100Measured-from-HTML signals we could take honestly in one server request.
Every check
24 checks run: 13 passed. Anything we could not verify is marked rather than guessed.
On-page
- Page titleProblemhigh
There is no <title> tag in the page HTML.
Add a unique <title> in <head>: 30–60 characters, the page topic first, then the brand — e.g. "Emergency Plumber in Leeds | Acme Plumbing".
- Meta descriptionProblemhigh
There is no <meta name="description"> tag in the page HTML.
Add <meta name="description" content="..."> with 70–160 characters: what the page offers, who it is for, and a reason to click.
- One H1 headingPass
Exactly one H1: "http://info.cern.ch - home of the first website"
- Heading structurePass
1 headings in a clean outline with no skipped levels.
- Image alt textPass
No <img> tags in the HTML we received, so there is nothing to check here.
- Canonical tagWorth fixingmedium
No <link rel="canonical"> tag on the page.
Add <link rel="canonical" href="http://info.cern.ch/"> in <head>, once per page.
- Page language declaredWorth fixingmedium
The <html> tag has no lang attribute.
Set it on the html element: <html lang="en"> (or lang="en-GB", "fr", etc.).
- Mobile viewport tagProblemhigh
There is no <meta name="viewport"> tag.
Add <meta name="viewport" content="width=device-width, initial-scale=1"> in <head>.
- Structured data (JSON-LD)Worth fixinglow
No JSON-LD structured data on the page.
Add JSON-LD for the page type (Organization, LocalBusiness, Article, FAQPage, Product) and check it in Google's Rich Results Test.
Technical
- HTTPSProblemhigh
The page is served over plain HTTP (http://info.cern.ch).
Install a certificate (free via Let's Encrypt) and redirect all http:// traffic to https:// with a single permanent redirect.
- Page responds with 200 OKPass
The final response was HTTP 200.
- Redirect chainPass
The page loads directly with no redirects.
- Indexable (meta robots)Pass
No noindex/nofollow directive in the page HTML.
- Indexable (X-Robots-Tag header)Pass
No X-Robots-Tag header blocking indexing.
- robots.txtWorth fixinglow
No robots.txt (the server returned 404).
Publish a robots.txt at http://info.cern.ch/robots.txt with a User-agent: * block and a Sitemap: line.
- XML sitemapWorth fixingmedium
No sitemap found at http://info.cern.ch/sitemap.xml (HTTP 404).
Publish an XML sitemap (most CMSs generate one) and add a Sitemap: line to robots.txt.
- Internal links workPass
Checked 1 internal links; none returned a 404.
Content
- Amount of readable contentProblemhigh
Only 42 words of visible text in the HTML.
Write the page: a headline, what you do, who for, where, proof (reviews, certifications), pricing or a clear next step. 400+ words minimum on a main page.
- Text-to-code ratioPass
Visible text is 38.9% of the HTML we received.
- Internal linkingWorth fixinglow
Only 1 internal link on the page (3 external).
Add 3–8 contextual internal links in the body copy, not just the navigation.
Performance
- Server response timePass
321 ms for the server to start sending the page (measured from our server, single request).
- HTML page weightPass
1 KB of HTML (does not include images, CSS or JS).
- Render-blocking resourcesPass
No render-blocking stylesheets or synchronous scripts in <head>.
- External resourcesPass
No external scripts, stylesheets, images or iframes referenced in the HTML.
What we measured
The raw values behind the checks above — useful when somebody asks “how do you know?”.
- Title tag
- none found
- Meta description
- none found
- H1 / headings
- 1 H1 · 1 headings (h1)
- Images
- 0 found · 0 missing alt · 0 decorative (alt="")
- Visible words in HTML
- 42
- Links
- 1 internal · 3 external · checked 1, broken 0, unverified 0
- HTTP status / redirects
- 200 · 0 redirect(s) from http://info.cern.ch/
- Final URL
- http://info.cern.ch/
- Canonical
- none
- html lang
- not set
- Viewport
- not set
- Robots directives
- meta robots: none · X-Robots-Tag: none
- robots.txt
- not usable (HTTP 404) · blocked: no
- sitemap
- not confirmed (HTTP 404)
- Structured data
- 0 JSON-LD block(s), 0 valid
- Server response time
- 321 ms (measured from our server)
- HTML size
- 0.6 KB
- Render-blocking
- 0 stylesheet(s) + 0 synchronous script(s) in head
- External resources
- 0 of 0 referenced assets
How to read this audit
- Every number here comes from the HTML the server returned, its response headers, robots.txt, sitemap.xml and up to 20 internal links — we do not run a browser, so anything the page adds afterwards is invisible to us.
- Performance figures are measured from one request from our server, not a Lighthouse or PageSpeed score. Treat them as directional: we can prove a slow server or a bloated document, we cannot prove how fast the page paints for a visitor in another country.