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SGSiteGraph

istio.io

Istio

Last scanned Jul 26, 2026, 5:47 AM

90

Overall score

Excellent

Summary

A service mesh for observability, security in depth, and management that speeds deployment cycles. This website uses Google Analytics behind Netlify CDN. SEO is good (80/100) and accessibility is excellent (100/100). Security scores good (85/100) and performance excellent (100/100). Top issue: Missing canonical link.

A service mesh for observability, security in depth, and management that speeds deployment cycles.

Top issues to fix

7 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 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.

  • robots.txt not found

    SEO

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

  • sitemap.xml not found

    SEO

    Publish an XML sitemap and reference it from robots.txt to speed up page discovery.

+1 more issue — details in the sections below.

80

SEO

4 issue(s) found

100

Performance

63 ms

85

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.

A service mesh for observability, security in depth, and management that speeds deployment cycles.

X (Twitter)

Meta tags

Title
Istio
Description
A service mesh for observability, security in depth, and management that speeds deployment cycles.
Canonical
Language
en
Charset
utf-8
Viewport
width=device-width,initial-scale=1,shrink-to-fit=no
Robots meta
Manifest
https://istio.io/latest/manifest.json

OpenGraph & Twitter Card

OpenGraph

og:title
Istio
og:description
A service mesh for observability, security in depth, and management that speeds deployment cycles.
og:type
website
og:url
https://istio.io/latest/

Twitter Card

twitter:card
summary_large_image
twitter:title
—
twitter:description
—

Technologies

Detected frameworks, languages, and tools.

Google Analytics

Hosting & CDN

Hosting provider
—
CDN provider
Netlify
IP address
—
ASN
—

DNS records

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

TLS / SSL certificate

Version
TLS 1.3
Issuer
Let's Encrypt
Subject
istio.io
Valid from
Jun 27, 2026
Valid to
Sep 25, 2026
Days until expiry
58
SAN domains
archive.istio.io, istio.io, www.istio.io

Security headers

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

Compression: gzip · 0 cookie(s) observed

Content & assets

Headings

H1 5 · H2 0 · H3 0

Links

20 internal · 20 external · 20 broken

Images

23 total · 0 missing alt

Scripts / Styles

11 scripts · 3 stylesheets

JS / CSS size

670 B · 17 B

Page size

31.1 KB

Robots.txt & Sitemap

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

SEO issues

  • Missing canonical link
  • Multiple H1 headings found
  • robots.txt not found
  • sitemap.xml not found

Accessibility issues

No accessibility issues detected.

Scan details

Requested URL
https://istio.io
Final URL
https://istio.io
HTTP status
200
HTTP version
HTTP/2
Response time
63 ms
HTML size
31.1 KB
Redirect chain
https://istio.io

See something wrong on this report? Request a correction

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Frequently asked questions

What technology does istio.io use?
istio.io is built with Google Analytics.
Is istio.io secure (HTTPS)?
Yes. istio.io uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Sep 25, 2026.
Who hosts istio.io?
Hosting provider information for istio.io is not available yet.
What is istio.io's SEO score?
istio.io scored 80/100 for SEO in the latest analysis (great).
What is istio.io's overall website score?
istio.io has an overall SiteGraph score of 90/100, combining SEO, performance, security, and accessibility.