What technology does corewebvitals.io use?

We did not detect any specific technologies for corewebvitals.io in the latest scan.

Is corewebvitals.io secure (HTTPS)?

Yes. corewebvitals.io uses TLS 1.3 with a certificate issued by Google Trust Services, valid until Oct 23, 2026.

Who hosts corewebvitals.io?

Hosting provider information for corewebvitals.io is not available yet.

What is corewebvitals.io's SEO score?

corewebvitals.io scored 75/100 for SEO in the latest analysis (fair).

What is corewebvitals.io's overall website score?

corewebvitals.io has an overall SiteGraph score of 86/100, combining SEO, performance, security, and accessibility.

corewebvitals.io

Core Web Vitals & PageSpeed Consultant | Arjen Karel

Last scanned Jul 26, 2026, 11:49 AM

Overall score

Great

Summary

I make websites fast. SEO is good (75/100) and accessibility is excellent (100/100). Security scores good (75/100) and performance excellent (100/100). Top issue: Meta description longer than 160 characters.

I make websites fast. Permanently. Core Web Vitals and PageSpeed consultancy for companies where the standard recommendations didn't work. 17 years, 300+ sites, clients include Adevinta, Nestlé, eBay, Zalando, and DPG Media.

Top issues to fix

8 issues found · 1 high priority

Missing Content-Security-Policy header
Security
Add a CSP to control which sources can run scripts — the strongest single defense against XSS.
Missing X-Content-Type-Options header
Security
Add X-Content-Type-Options: nosniff to stop MIME-sniffing attacks.
Missing X-Frame-Options header
Security
Add X-Frame-Options (or a CSP frame-ancestors rule) to prevent clickjacking via hidden iframes.
Meta description longer than 160 characters
SEO
Trim the meta description to under 160 characters to avoid truncation in search results.
No structured data (JSON-LD) found
SEO
Add JSON-LD (Organization, Article, Product…) to become eligible for rich results.
robots.txt not found
SEO
Publish /robots.txt with a Sitemap: directive to guide crawlers.

+2 more issues — details in the sections below.

SEO

4 issue(s) found

100

Performance

980 ms

Security

HTTPS & header checks

100

Accessibility

0 issue(s) found

Not enough scan history yet to show a trend — check back after this site has been re-scanned a few more times.

Organization

Company details published in this site's own structured data.

Contact

Email, phone, and address published on this site's own pages.

Email: info@corewebvitals.io
Phone: +31164313023

Meta tags

Title: Core Web Vitals & PageSpeed Consultant | Arjen Karel
Description: I make websites fast. Permanently. Core Web Vitals and PageSpeed consultancy for companies where the standard recommendations didn't work. 17 years, 300+ sites, clients include Adevinta, Nestlé, eBay, Zalando, and DPG Media.
Canonical: https://www.corewebvitals.io/
Language: en
Charset: utf-8
Viewport: width=device-width, user-scalable=yes, shrink-to-fit=yes, initial-scale=1, minimum-scale=1
Robots meta
Manifest

Technologies

Detected frameworks, languages, and tools.

No technologies detected.

Hosting & CDN

Hosting provider: —
CDN provider: Cloudflare
IP address: —
ASN: —

DNS records

Type	Value
A	—
AAAA	—
MX	—
TXT	—
NS	—
CAA	—
CNAME	—
IPv6 support	No

TLS / SSL certificate

Version: TLS 1.3
Issuer: Google Trust Services
Subject: corewebvitals.io
Valid from: Jul 25, 2026
Valid to: Oct 23, 2026
Days until expiry: 86
SAN domains: corewebvitals.io, *.corewebvitals.io

Security headers

Strict-Transport-SecurityEnabled
Content-Security-PolicyMissing
X-Frame-OptionsMissing
X-Content-Type-OptionsMissing
Referrer-PolicyMissing
Permissions-PolicyMissing

Compression: gzip · 0 cookie(s) observed

Content & assets

Headings

H1 1 · H2 6 · H3 16

Links

39 internal · 3 external · 20 broken

Images

51 total · 0 missing alt

Scripts / Styles

5 scripts · 0 stylesheets

JS / CSS size

2.1 KB · 21.7 KB

Page size

53.6 KB

Robots.txt & Sitemap

robots.txt: Not found
Disallow rules: 0
sitemap.xml: Not found
URLs in sitemap: 0

SEO issues

Meta description longer than 160 characters
No structured data (JSON-LD) found
robots.txt not found
sitemap.xml not found

Scan details

Requested URL: https://corewebvitals.io
Final URL: https://www.corewebvitals.io/
HTTP status: 200
HTTP version: HTTP/2
Response time: 979 ms
HTML size: 53.6 KB
Redirect chain: https://corewebvitals.io → https://www.corewebvitals.io/

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Frequently asked questions

What technology does corewebvitals.io use?: We did not detect any specific technologies for corewebvitals.io in the latest scan.
Is corewebvitals.io secure (HTTPS)?: Yes. corewebvitals.io uses TLS 1.3 with a certificate issued by Google Trust Services, valid until Oct 23, 2026.
Who hosts corewebvitals.io?: Hosting provider information for corewebvitals.io is not available yet.
What is corewebvitals.io's SEO score?: corewebvitals.io scored 75/100 for SEO in the latest analysis (fair).
What is corewebvitals.io's overall website score?: corewebvitals.io has an overall SiteGraph score of 86/100, combining SEO, performance, security, and accessibility.