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SGSiteGraph

polkadot.io

Polkadot

Last scanned Jul 26, 2026, 5:47 AM

79

Overall score

Fair

Summary

Products for people. This website uses Next.js hosted on Fastly behind Fastly CDN. SEO is fair (65/100) and accessibility is excellent (90/100). Security scores fair (65/100) and performance excellent (100/100). Top issue: Missing canonical link.

Products for people.

United States
Hosted on Fastly

Top issues to fix

9 issues found · 3 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.

  • 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-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.

  • Missing canonical link

    SEO

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

+3 more issues — details in the sections below.

65

SEO

5 issue(s) found

100

Performance

16 ms

65

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.

Products for people.

Meta tags

Title
Polkadot
Description
Products for people.
Canonical
Language
en
Charset
utf-8
Viewport
width=device-width, initial-scale=1
Robots meta
Manifest

OpenGraph & Twitter Card

OpenGraph

og:title
Polkadot
og:description
Products for people.
og:type
website
og:url
https://polkadot.com

Twitter Card

twitter:card
summary_large_image
twitter:title
Polkadot
twitter:description
Products for people.

Technologies

Detected frameworks, languages, and tools.

Next.js

Hosting & CDN

Hosting provider
Fastly
CDN provider
Fastly
IP address
185.199.111.153
ASN
AS54113 (FASTLY - Fastly, Inc., US)

DNS records

TypeValue
A
  • 185.199.111.153
  • 185.199.109.153
  • 185.199.108.153
  • 185.199.110.153
AAAA
  • 2606:50c0:8001::153
  • 2606:50c0:8000::153
  • 2606:50c0:8002::153
  • 2606:50c0:8003::153
MX
TXT
  • google-site-verification=uBd8-Y6VF40tsVGQeKCTgFvXWJZ74VpHMpeiNflf7rQ
  • v=spf1 -all
  • google-site-verification=JdxnC1IrjDQtExE5Y6XkjCmQtO91pft4M2QLy5FqpdY
NS
  • magali.ns.cloudflare.com
  • lakas.ns.cloudflare.com
CAA—
CNAME—
IPv6 supportYes

TLS / SSL certificate

Version
TLS 1.3
Issuer
Let's Encrypt
Subject
polkadot.com
Valid from
Jun 15, 2026
Valid to
Sep 13, 2026
Days until expiry
48
SAN domains
polkadot.com, www.polkadot.com

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 0 · H2 0 · H3 0

Links

0 internal · 0 external · 0 broken

Images

0 total · 0 missing alt

Scripts / Styles

19 scripts · 1 stylesheets

JS / CSS size

614 KB · 34.1 KB

Page size

12.2 KB

Robots.txt & Sitemap

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

SEO issues

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

Accessibility issues

  • No H1 heading found

Scan details

Requested URL
https://polkadot.io
Final URL
https://polkadot.com
HTTP status
200
HTTP version
HTTP/2
Response time
16 ms
HTML size
12.2 KB
Redirect chain
https://polkadot.io → https://polkadot.network → https://polkadot.com

See something wrong on this report? Request a correction

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Frequently asked questions

What technology does polkadot.io use?
polkadot.io is built with Next.js.
Is polkadot.io secure (HTTPS)?
Yes. polkadot.io uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Sep 13, 2026.
Who hosts polkadot.io?
polkadot.io is hosted on Fastly, behind Fastly CDN.
What is polkadot.io's SEO score?
polkadot.io scored 65/100 for SEO in the latest analysis (fair).
What is polkadot.io's overall website score?
polkadot.io has an overall SiteGraph score of 79/100, combining SEO, performance, security, and accessibility.