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SGSiteGraph

zoll.com

ZOLL Medical | ZOLL Medical

Last scanned Aug 3, 2026, 10:00 PM · 10 views

73

Overall score

Fair

Summary

This website uses Google Analytics behind Cloudflare CDN. SEO is fair (55/100) and accessibility is fair (65/100). Security scores excellent (100/100) and performance good (75/100). Top issue: Missing meta description.

Top issues to fix

9 issues found · 2 high priority

  • Missing meta description

    SEO

    Add a ~150-character meta description to control your search-result snippet and lift click-through rate.

  • 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.

  • 5 cookies without Secure/HttpOnly flags

    Security

    Set Secure and HttpOnly on session cookies so they can't leak over HTTP or be read by injected scripts.

  • No structured data (JSON-LD) found

    SEO

    Add JSON-LD (Organization, Article, Product…) to become eligible for rich results.

  • Missing OpenGraph tags

    SEO

    Add og:title/og:description/og:image so shared links render a proper preview card.

  • robots.txt not found

    SEO

    Publish /robots.txt with a Sitemap: directive to guide crawlers.

+3 more issues — details in the sections below.

55

SEO

6 issue(s) found

75

Performance

1.42 s

100

Security

HTTPS & header checks

65

Accessibility

3 issue(s) found

Score history

-7 overall since Jul 26, 2026

Overall
73
SEO
55
Security
100
Performance
75
Accessibility
65

Organization

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

Meta tags

Title
ZOLL Medical | ZOLL Medical
Description
Canonical
https://www.zoll.com/en-us
Language
Charset
UTF-8
Viewport
width=device-width, initial-scale=1
Robots meta
Manifest

OpenGraph & Twitter Card

OpenGraph

og:title
og:description
og:type
og:url

Twitter Card

twitter:card
twitter:title
twitter:description

Technologies

Detected frameworks, languages, and tools.

Hosting & CDN

Hosting provider
CDN provider
Cloudflare
IP address
ASN

DNS records

TypeValue
A
AAAA
MX
TXT
NS
CAA
CNAME
IPv6 supportNo

TLS / SSL certificate

Version
TLS 1.3
Issuer
Google Trust Services
Subject
www.zoll.com
Valid from
Jun 7, 2026
Valid to
Sep 5, 2026
Days until expiry
32
SAN domains
www.zoll.com

Security headers

  • Strict-Transport-SecurityEnabled
  • Content-Security-PolicyEnabled
  • X-Frame-OptionsEnabled
  • X-Content-Type-OptionsEnabled
  • Referrer-PolicyEnabled
  • Permissions-PolicyEnabled

Compression: gzip · 6 cookie(s) observed

Content & assets

Headings

H1 0 · H2 10 · H3 41

Links

123 internal · 37 external · 0 broken

Images

16 total · 8 missing alt

Scripts / Styles

36 scripts · 3 stylesheets

JS / CSS size

1.2 MB · 8.7 KB

Page size

199 KB

Robots.txt & Sitemap

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

SEO issues

  • Missing meta description
  • No H1 heading found
  • No structured data (JSON-LD) found
  • Missing OpenGraph tags
  • robots.txt not found
  • sitemap.xml not found

Accessibility issues

  • More than 20% of images are missing alt text
  • No H1 heading found
  • Missing <html lang> attribute

Scan details

Requested URL
https://zoll.com
Final URL
https://www.zoll.com/en-us
HTTP status
200
HTTP version
HTTP/2
Response time
1.42 s
HTML size
199 KB
Redirect chain
https://zoll.com → https://www.zoll.com/ → https://www.zoll.com/en-us

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Frequently asked questions

What technology does zoll.com use?
zoll.com is built with jQuery, Google Analytics, Google Ads, Meta Pixel, TikTok Pixel.
Is zoll.com secure (HTTPS)?
Yes. zoll.com uses TLS 1.3 with a certificate issued by Google Trust Services, valid until Sep 5, 2026.
Who hosts zoll.com?
Hosting provider information for zoll.com is not available yet.
What is zoll.com's SEO score?
zoll.com scored 55/100 for SEO in the latest analysis (fair).
What is zoll.com's overall website score?
zoll.com has an overall SiteGraph score of 73/100, combining SEO, performance, security, and accessibility.
Has zoll.com's score changed over time?
zoll.com's overall score has declined by 7 points (from 80 to 73) since Jul 26, 2026.