tasmota.com

Tasmota Documentation - Tasmota

Last scanned Aug 24, 2026, 1:23 PM

85

Overall score

Great

Summary

Open source firmware for ESP devices with easy configuration using webUI, OTA updates, automation using timers or rules, expandability and entirely local control over MQTT, HTTP, serial or KNX. This website uses Google Analytics hosted on Fastly behind Fastly CDN. SEO is fair (70/100) and accessibility is excellent (100/100). Security scores good (75/100) and performance excellent (100/100). Top issue: Meta description longer than 160 characters.

Open source firmware for ESP devices with easy configuration using webUI, OTA updates, automation using timers or rules, expandability and entirely local control over MQTT, HTTP, serial or KNX.

United States

Hosted on Fastly

Top issues to fix

8 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.
Meta description longer than 160 characters
SEO
Trim the meta description to under 160 characters to avoid truncation in search results.
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.

+2 more issues — details in the sections below.

70

SEO

5 issue(s) found

100

Performance

150 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.

Open source firmware for ESP devices with easy configuration using webUI, OTA updates, automation using timers or rules, expandability and entirely local control over MQTT, HTTP, serial or KNX.

Meta tags

Title: Tasmota Documentation - Tasmota
Description: Open source firmware for ESP devices with easy configuration using webUI, OTA updates, automation using timers or rules, expandability and entirely local control over MQTT, HTTP, serial or KNX.
Canonical: https://tasmota.github.io/docs/
Language: en
Charset: utf-8
Viewport: width=device-width,initial-scale=1
Robots meta
Manifest

Technologies

Detected frameworks, languages, and tools.

Google Analytics

Hosting & CDN

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

DNS records

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

TLS / SSL certificate

Version: TLS 1.3
Issuer: Let's Encrypt
Subject: *.github.io
Valid from: Aug 2, 2026
Valid to: Oct 31, 2026
Days until expiry: 67
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 1 · H2 3 · H3 0

Links

95 internal · 24 external · 0 broken

Images

8 total · 1 missing alt

Scripts / Styles

10 scripts · 4 stylesheets

JS / CSS size

115 KB · 149 KB

Page size

37.3 KB

Robots.txt & Sitemap

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

SEO issues

Meta description longer than 160 characters
No structured data (JSON-LD) found
Missing OpenGraph tags
robots.txt not found
sitemap.xml not found

Scan details

Requested URL: https://tasmota.com
Final URL: https://tasmota.github.io/docs/
HTTP status: 200
HTTP version: HTTP/2
Response time: 150 ms
HTML size: 37.3 KB
Redirect chain: https://tasmota.com → https://tasmota.github.io/docs → https://tasmota.github.io/docs/

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Frequently asked questions

What technology does tasmota.com use?: tasmota.com is built with Google Analytics.
Is tasmota.com secure (HTTPS)?: Yes. tasmota.com uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Oct 31, 2026.
Who hosts tasmota.com?: tasmota.com is hosted on Fastly, behind Fastly CDN.
What is tasmota.com's SEO score?: tasmota.com scored 70/100 for SEO in the latest analysis (fair).
What is tasmota.com's overall website score?: tasmota.com has an overall SiteGraph score of 85/100, combining SEO, performance, security, and accessibility.