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SGSiteGraph

grpc.io

gRPC

Last scanned Jul 26, 2026, 5:47 AM · 2 views

87

Overall score

Great

Summary

A high performance, open source universal RPC …. This website uses Google Analytics hosted on Cloudflare behind Cloudflare CDN. SEO is good (80/100) and accessibility is excellent (90/100). Security scores good (80/100) and performance excellent (100/100). Top issue: No H1 heading found.

A high performance, open source universal RPC …

United States
Hosted on Cloudflare

Top issues to fix

4 issues found · 2 high priority

  • 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.

  • Missing X-Frame-Options header

    Security

    Add X-Frame-Options (or a CSP frame-ancestors rule) to prevent clickjacking via hidden iframes.

  • No structured data (JSON-LD) found

    SEO

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

80

SEO

2 issue(s) found

100

Performance

278 ms

80

Security

HTTPS & header checks

90

Accessibility

1 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 high performance, open source universal RPC …

X (Twitter)YouTubeGitHub

Meta tags

Title
gRPC
Description
A high performance, open source universal RPC …
Canonical
https://grpc.io/
Language
en
Charset
utf-8
Viewport
width=device-width,initial-scale=1,shrink-to-fit=no
Robots meta
index, follow
Manifest
https://grpc.io/favicons/site.webmanifest

OpenGraph & Twitter Card

OpenGraph

og:title
gRPC
og:description
A high-performance, open source universal RPC framework
og:type
website
og:url
https://grpc.io/

Twitter Card

twitter:card
summary
twitter:title
gRPC
twitter:description
A high-performance, open source universal RPC framework

Technologies

Detected frameworks, languages, and tools.

jQueryGoogle AnalyticsCloudflare Analytics

Hosting & CDN

Hosting provider
Cloudflare
CDN provider
Cloudflare
IP address
104.21.13.85
ASN
AS13335 (CLOUDFLARENET - Cloudflare, Inc., US)

DNS records

TypeValue
A
  • 104.21.13.85
  • 172.67.132.164
AAAA
  • 2606:4700:3035::6815:d55
  • 2606:4700:3037::ac43:84a4
MX—
TXT
  • v=spf1 -all
NS
  • bart.ns.cloudflare.com
  • fay.ns.cloudflare.com
CAA—
CNAME—
IPv6 supportYes

TLS / SSL certificate

Version
TLS 1.3
Issuer
Google Trust Services
Subject
grpc.io
Valid from
Jun 12, 2026
Valid to
Sep 10, 2026
Days until expiry
43
SAN domains
grpc.io, *.grpc.io

Security headers

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

Compression: gzip · 0 cookie(s) observed

Content & assets

Headings

H1 0 · H2 3 · H3 4

Links

15 internal · 17 external · 0 broken

Images

11 total · 1 missing alt

Scripts / Styles

18 scripts · 1 stylesheets

JS / CSS size

146 KB · 510 B

Page size

32.2 KB

Robots.txt & Sitemap

robots.txt
Found
Disallow rules
7
sitemap.xml
Found
URLs in sitemap
170

SEO issues

  • No H1 heading found
  • No structured data (JSON-LD) found

Accessibility issues

  • No H1 heading found

Scan details

Requested URL
https://grpc.io
Final URL
https://grpc.io
HTTP status
200
HTTP version
HTTP/2
Response time
278 ms
HTML size
32.2 KB
Redirect chain
https://grpc.io

See something wrong on this report? Request a correction

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Frequently asked questions

What technology does grpc.io use?
grpc.io is built with jQuery, Google Analytics, Cloudflare Analytics.
Is grpc.io secure (HTTPS)?
Yes. grpc.io uses TLS 1.3 with a certificate issued by Google Trust Services, valid until Sep 10, 2026.
Who hosts grpc.io?
grpc.io is hosted on Cloudflare, behind Cloudflare CDN.
What is grpc.io's SEO score?
grpc.io scored 80/100 for SEO in the latest analysis (great).
What is grpc.io's overall website score?
grpc.io has an overall SiteGraph score of 87/100, combining SEO, performance, security, and accessibility.