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cal.to

Kalender aus der Bundesliga, von Städten, aus dem TV oder Schulferien kostenlos abonnieren - Kalendermarketing - calovo

Last scanned Aug 4, 2026, 11:00 AM · 10 views

73

Overall score

Fair

Summary

Kalender kostenlos abonnieren und aktuelle Termine direkt im eigenen Kalender nutzen. This website uses PHP behind CloudFront CDN. SEO is good (75/100) and accessibility is fair (60/100). Security scores fair (65/100) and performance excellent (90/100). Top issue: Title longer than 60 characters.

calovo

Kalender kostenlos abonnieren und aktuelle Termine direkt im eigenen Kalender nutzen.

Top issues to fix

10 issues found · 4 high priority

  • Missing Strict-Transport-Security header

    Security

    Add HSTS so browsers always use HTTPS — this closes the protocol-downgrade attack window.

  • Missing Content-Security-Policy header

    Security

    Add a CSP to control which sources can run scripts — the strongest single defense against XSS.

  • No H1 heading found

    SEO

    Add exactly one H1 describing the page's main topic — it anchors the document outline for search engines and screen readers.

  • Over half of images are missing alt text

    Accessibility

    Add alt attributes to images — screen readers depend on them, and they help image SEO.

  • 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.

+4 more issues — details in the sections below.

75

SEO

4 issue(s) found

90

Performance

1.25 s

65

Security

HTTPS & header checks

60

Accessibility

2 issue(s) found

Score history

-3 overall since Jul 27, 2026

Overall
73
SEO
75
Security
65
Performance
90
Accessibility
60

Organization

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

calovo

Kalender kostenlos abonnieren und aktuelle Termine direkt im eigenen Kalender nutzen.

FacebookX (Twitter)YouTubeInstagram

Contact

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

Meta tags

Title
Kalender aus der Bundesliga, von Städten, aus dem TV oder Schulferien kostenlos abonnieren - Kalendermarketing - calovo
Description
Kostenlos ausgewählte Kalender wie Bundesliga Spielpläne, Städte, Ferien oder Feiertage abonnieren. Einmal hinzufügen. Immer aktuell. 100% kostenlos.
Canonical
https://calovo.de/
Language
de
Charset
utf-8
Viewport
width=device-width, initial-scale=1.0
Robots meta
Manifest

OpenGraph & Twitter Card

OpenGraph

og:title
Die schönsten Termine bereits vorher im Kalender
og:description
Einmal hinzufügen. Immer aktuell. 100% kostenlos.
og:type
website
og:url
https://calovo.de

Twitter Card

twitter:card
summary_large_image
twitter:title
Die schönsten Termine bereits vorher im Kalender
twitter:description
Einmal hinzufügen. Immer aktuell. 100% kostenlos.

Technologies

Detected frameworks, languages, and tools.

PHPjQuery

Hosting & CDN

Hosting provider
—
CDN provider
CloudFront
IP address
—
ASN
—

DNS records

TypeValue
A—
AAAA—
MX—
TXT—
NS—
CAA—
CNAME—
IPv6 supportNo

TLS / SSL certificate

Version
TLS 1.3
Issuer
Amazon
Subject
calovo.de
Valid from
Jun 12, 2026
Valid to
Dec 26, 2026
Days until expiry
144
SAN domains
calovo.de, www.calovo.com, calovo.com, www.calovo.de

Security headers

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

Compression: gzip · 0 cookie(s) observed

Content & assets

Headings

H1 0 · H2 10 · H3 59

Links

186 internal · 8 external · 4 broken

Images

50 total · 47 missing alt

Scripts / Styles

8 scripts · 7 stylesheets

JS / CSS size

9.2 KB · 2.3 KB

Page size

203 KB

Robots.txt & Sitemap

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

SEO issues

  • Title longer than 60 characters
  • No H1 heading found
  • robots.txt not found
  • sitemap.xml not found

Accessibility issues

  • Over half of images are missing alt text
  • No H1 heading found

Scan details

Requested URL
https://cal.to
Final URL
https://calovo.de
HTTP status
200
HTTP version
HTTP/2
Response time
1.25 s
HTML size
203 KB
Redirect chain
https://cal.to → https://calovo.de

See something wrong on this report? Request a correction

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Frequently asked questions

What technology does cal.to use?
cal.to is built with PHP, jQuery.
Is cal.to secure (HTTPS)?
Yes. cal.to uses TLS 1.3 with a certificate issued by Amazon, valid until Dec 26, 2026.
Who hosts cal.to?
Hosting provider information for cal.to is not available yet.
What is cal.to's SEO score?
cal.to scored 75/100 for SEO in the latest analysis (fair).
What is cal.to's overall website score?
cal.to has an overall SiteGraph score of 73/100, combining SEO, performance, security, and accessibility.
What company operates cal.to?
cal.to is operated by calovo. Kalender kostenlos abonnieren und aktuelle Termine direkt im eigenen Kalender nutzen.
Has cal.to's score changed over time?
cal.to's overall score has declined by 3 points (from 76 to 73) since Jul 27, 2026.