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acko.net

Hackery, Math & Design — Acko.net

Last scanned Jul 26, 2026, 11:49 AM

79

Overall score

Fair

Summary

A blog about random hacks, graphics and design, math and other ephemera. This website uses Nginx hosted on AKAMAI-LINODE-AP - Akamai Connected Cloud, SG. SEO is good (75/100) and accessibility is excellent (90/100). Security scores fair (65/100) and performance excellent (90/100). Top issue: Multiple H1 headings found.

A blog about random hacks, graphics and design, math and other ephemera.

United States
Hosted on AKAMAI-LINODE-AP - Akamai Connected Cloud, SG

Top issues to fix

10 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.

  • TLS certificate expires in 17 days

    Security

    Renew soon or enable auto-renewal to avoid a browser-warning outage.

  • 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.

  • Multiple H1 headings found

    SEO

    Keep a single H1 per page and demote the others to H2/H3.

+4 more issues — details in the sections below.

75

SEO

4 issue(s) found

90

Performance

241 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.

A blog about random hacks, graphics and design, math and other ephemera.

Meta tags

Title
Hackery, Math & Design — Acko.net
Description
A blog about random hacks, graphics and design, math and other ephemera.
Canonical
https://acko.net/
Language
Charset
utf-8
Viewport
initial-scale=1, minimum-scale=1, maximum-scale=1
Robots meta
Manifest

OpenGraph & Twitter Card

OpenGraph

og:title
og:description
og:type
og:url

Twitter Card

twitter:card
summary_large_image
twitter:title
Hackery, Math & Design
twitter:description
A blog about random hacks, graphics and design, math and other ephemera.

Technologies

Detected frameworks, languages, and tools.

Hosting & CDN

CDN provider
IP address
23.239.21.64
ASN
AS63949 (AKAMAI-LINODE-AP - Akamai Connected Cloud, SG)

DNS records

TypeValue
A
  • 23.239.21.64
AAAA
  • 2600:3c01::f03c:91ff:fe50:f1ee
MX
  • mailsec.protonmail.ch
  • mail.protonmail.ch
TXT
  • v=spf1 include:_spf.mlsend.com include:_spf.protonmail.ch mx -all
  • protonmail-verification=53e5c5a4861c6167f76f640080b2f4f5362dab27
  • brave-ledger-verification=c28864ae100849f1b0d2e91333c98559e0442ff6412ba3a6fd4bec4f97b9ef00
NS
  • ns4.linode.com
  • ns5.linode.com
  • ns2.linode.com
  • ns3.linode.com
  • ns1.linode.com
CAA
CNAME
IPv6 supportYes

TLS / SSL certificate

Version
TLS 1.2
Issuer
Let's Encrypt
Subject
*.acko.net
Valid from
May 17, 2026
Valid to
Aug 15, 2026
Days until expiry
17
SAN domains
*.acko.net, acko.net

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 72 · H2 1 · H3 0

Links

82 internal · 5 external · 0 broken

Images

82 total · 0 missing alt

Scripts / Styles

3 scripts · 1 stylesheets

JS / CSS size

571 KB · 38.2 KB

Page size

45.1 KB

Robots.txt & Sitemap

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

SEO issues

  • Multiple H1 headings found
  • No structured data (JSON-LD) found
  • Missing OpenGraph tags
  • sitemap.xml not found

Accessibility issues

  • Missing <html lang> attribute

Scan details

Requested URL
https://acko.net
Final URL
https://acko.net
HTTP status
200
HTTP version
HTTP/1.1
Response time
241 ms
HTML size
45.1 KB
Redirect chain
https://acko.net

See something wrong on this report? Request a correction

Frequently asked questions

What technology does acko.net use?
acko.net is built with Nginx.
Is acko.net secure (HTTPS)?
Yes. acko.net uses TLS 1.2 with a certificate issued by Let's Encrypt, valid until Aug 15, 2026.
Who hosts acko.net?
acko.net is hosted on AKAMAI-LINODE-AP - Akamai Connected Cloud, SG.
What is acko.net's SEO score?
acko.net scored 75/100 for SEO in the latest analysis (fair).
What is acko.net's overall website score?
acko.net has an overall SiteGraph score of 79/100, combining SEO, performance, security, and accessibility.