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SGSiteGraph

zwave-js.io

Z-Wave JS - Z-Wave driver written entirely in JavaScript/TypeScript

Last scanned Jul 27, 2026, 9:43 AM

82

Overall score

Great

Summary

Z-Wave driver written entirely in JavaScript/TypeScript. This website is hosted on Fastly. SEO is fair (60/100) and accessibility is excellent (100/100). Security scores good (75/100) and performance excellent (100/100). Top issue: Title longer than 60 characters.

Z-Wave driver written entirely in JavaScript/TypeScript

United States
Hosted on Fastly

Top issues to fix

10 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.

  • Title longer than 60 characters

    SEO

    Shorten the title to under 60 characters so search results don't truncate it.

  • Missing canonical link

    SEO

    Add <link rel="canonical"> so search engines know which URL variant to index.

  • Multiple H1 headings found

    SEO

    Keep a single H1 per page and demote the others to H2/H3.

+4 more issues — details in the sections below.

60

SEO

7 issue(s) found

100

Performance

106 ms

75

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.

Z-Wave driver written entirely in JavaScript/TypeScript

X (Twitter)

Meta tags

Title
Z-Wave JS - Z-Wave driver written entirely in JavaScript/TypeScript
Description
Z-Wave driver written entirely in JavaScript/TypeScript
Canonical
Language
en
Charset
UTF-8
Viewport
width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0
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.

No technologies detected.

Hosting & CDN

Hosting provider
Fastly
CDN provider
Fastly
IP address
185.199.109.153
ASN
AS54113 (FASTLY - Fastly, Inc., US)

DNS records

TypeValue
A
  • 185.199.109.153
  • 185.199.110.153
  • 185.199.108.153
  • 185.199.111.153
AAAA
  • 2606:50c0:8001::153
  • 2606:50c0:8003::153
  • 2606:50c0:8000::153
  • 2606:50c0:8002::153
MX—
TXT—
NS—
CAA
  • 0 issuewild "sectigo.com"
  • 0 issue "letsencrypt.org"
  • 0 issue "sectigo.com"
  • 0 issuewild "digicert.com"
  • 0 issue "digicert.com"
  • 0 issuewild "letsencrypt.org"
CNAME—
IPv6 supportYes

TLS / SSL certificate

Version
TLS 1.3
Issuer
Let's Encrypt
Subject
*.github.io
Valid from
Jun 4, 2026
Valid to
Sep 2, 2026
Days until expiry
37
SAN domains
*.github.com, *.github.io, *.githubusercontent.com, github.com, github.io, githubusercontent.com

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 3 · H2 1 · H3 0

Links

1 internal · 3 external · 0 broken

Images

2 total · 0 missing alt

Scripts / Styles

11 scripts · 1 stylesheets

JS / CSS size

9.7 KB · 12.8 KB

Page size

520 B

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
  • Missing canonical link
  • Multiple H1 headings found
  • No structured data (JSON-LD) found
  • Missing OpenGraph tags
  • robots.txt not found
  • sitemap.xml not found

Accessibility issues

No accessibility issues detected.

Scan details

Requested URL
https://zwave-js.io
Final URL
https://zwave-js.github.io/node-zwave-js/
HTTP status
200
HTTP version
HTTP/2
Response time
106 ms
HTML size
520 B
Redirect chain
https://zwave-js.io → https://zwave-js.github.io/node-zwave-js/

See something wrong on this report? Request a correction

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Frequently asked questions

What technology does zwave-js.io use?
We did not detect any specific technologies for zwave-js.io in the latest scan.
Is zwave-js.io secure (HTTPS)?
Yes. zwave-js.io uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Sep 2, 2026.
Who hosts zwave-js.io?
zwave-js.io is hosted on Fastly, behind Fastly CDN.
What is zwave-js.io's SEO score?
zwave-js.io scored 60/100 for SEO in the latest analysis (fair).
What is zwave-js.io's overall website score?
zwave-js.io has an overall SiteGraph score of 82/100, combining SEO, performance, security, and accessibility.