What technology does esphome.io use?

We did not detect any specific technologies for esphome.io in the latest scan.

Is esphome.io secure (HTTPS)?

Yes. esphome.io uses TLS 1.3 with a certificate issued by Google Trust Services, valid until Oct 9, 2026.

Who hosts esphome.io?

Hosting provider information for esphome.io is not available yet.

What is esphome.io's SEO score?

esphome.io scored 80/100 for SEO in the latest analysis (great).

What is esphome.io's overall website score?

esphome.io has an overall SiteGraph score of 85/100, combining SEO, performance, security, and accessibility.

esphome.io

ESPHome - Smart Home Made Simple

Last scanned Jul 26, 2026, 5:48 AM

Overall score

Great

Summary

Smart Home Made Simple. SEO is good (80/100) and accessibility is excellent (100/100). Security scores fair (65/100) and performance excellent (100/100). Top issue: No structured data (JSON-LD) found.

Smart Home Made Simple. ESPHome turns ESP32, ESP8266, and RP2040 microcontrollers into fully-featured smart home devices.

Top issues to fix

8 issues found · 2 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.
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.
No structured data (JSON-LD) found
SEO
Add JSON-LD (Organization, Article, Product…) to become eligible for rich results.
robots.txt not found
SEO
Publish /robots.txt with a Sitemap: directive to guide crawlers.

+2 more issues — details in the sections below.

SEO

3 issue(s) found

100

Performance

201 ms

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.

Smart Home Made Simple. ESPHome turns ESP32, ESP8266, and RP2040 microcontrollers into fully-featured smart home devices.

Meta tags

Title: ESPHome - Smart Home Made Simple
Description: Smart Home Made Simple. ESPHome turns ESP32, ESP8266, and RP2040 microcontrollers into fully-featured smart home devices.
Canonical: https://esphome.io/
Language: en
Charset: utf-8
Viewport: width=device-width, initial-scale=1
Robots meta
Manifest

Technologies

Detected frameworks, languages, and tools.

No technologies detected.

Hosting & CDN

Hosting provider: —
CDN provider: Cloudflare
IP address: —
ASN: —

DNS records

Type	Value
A	—
AAAA	—
MX	—
TXT	—
NS	—
CAA	—
CNAME	—
IPv6 support	No

TLS / SSL certificate

Version: TLS 1.3
Issuer: Google Trust Services
Subject: esphome.io
Valid from: Jul 11, 2026
Valid to: Oct 9, 2026
Days until expiry: 73
SAN domains: esphome.io, *.esphome.io

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 1 · H2 3 · H3 0

Links

13 internal · 8 external · 20 broken

Images

5 total · 0 missing alt

Scripts / Styles

10 scripts · 2 stylesheets

JS / CSS size

8.2 KB · 1.8 KB

Page size

28.8 KB

Robots.txt & Sitemap

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

SEO issues

No structured data (JSON-LD) found
robots.txt not found
sitemap.xml not found

Scan details

Requested URL: https://esphome.io
Final URL: https://esphome.io
HTTP status: 200
HTTP version: HTTP/2
Response time: 201 ms
HTML size: 28.8 KB
Redirect chain: https://esphome.io

See something wrong on this report? Request a correction

Frequently asked questions

What technology does esphome.io use?: We did not detect any specific technologies for esphome.io in the latest scan.
Is esphome.io secure (HTTPS)?: Yes. esphome.io uses TLS 1.3 with a certificate issued by Google Trust Services, valid until Oct 9, 2026.
Who hosts esphome.io?: Hosting provider information for esphome.io is not available yet.
What is esphome.io's SEO score?: esphome.io scored 80/100 for SEO in the latest analysis (great).
What is esphome.io's overall website score?: esphome.io has an overall SiteGraph score of 85/100, combining SEO, performance, security, and accessibility.