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SGSiteGraph

joelonsoftware.com

Joel on Software

Last scanned Aug 1, 2026, 7:00 PM · 9 views

80

Overall score

Great

Summary

A weblog by Joel Spolsky, a programmer working in New York City, about software and software companies. This website uses WordPress. SEO is good (75/100) and accessibility is fair (70/100). Security scores good (75/100) and performance excellent (100/100). Top issue: Missing canonical link.

A weblog by Joel Spolsky, a programmer working in New York City, about software and software companies.

Top issues to fix

10 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.

  • Over half of images are missing alt text

    Accessibility

    Add alt attributes to images — screen readers depend on them, and they help image SEO.

  • TLS certificate expires in 30 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.

  • Missing canonical link

    SEO

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

+4 more issues — details in the sections below.

75

SEO

4 issue(s) found

100

Performance

263 ms

75

Security

HTTPS & header checks

70

Accessibility

1 issue(s) found

Score history

-3 overall since Jul 25, 2026

Overall
80
SEO
75
Security
75
Performance
100
Accessibility
70

Organization

Company details published in this site's own structured data.

A weblog by Joel Spolsky, a programmer working in New York City, about software and software companies.

Meta tags

Title
Joel on Software
Description
A weblog by Joel Spolsky, a programmer working in New York City, about software and software companies.
Canonical
Language
en-US
Charset
UTF-8
Viewport
width=device-width, initial-scale=1
Robots meta
max-image-preview:large
Manifest

OpenGraph & Twitter Card

OpenGraph

og:title
Joel on Software
og:description
A weblog by Joel Spolsky, a programmer working in New York City, about software and software companies.
og:type
website
og:url
https://www.joelonsoftware.com/

Twitter Card

twitter:card
twitter:title
twitter:description

Technologies

Detected frameworks, languages, and tools.

Hosting & CDN

Hosting provider
CDN provider
IP address
ASN

DNS records

TypeValue
A
AAAA
MX
TXT
NS
CAA
CNAME
IPv6 supportNo

TLS / SSL certificate

Version
TLS 1.3
Issuer
Google Trust Services
Subject
tls.automattic.com
Valid from
Jun 3, 2026
Valid to
Sep 1, 2026
Days until expiry
30
SAN domains
tls.automattic.com, aucorenovations.com, commercialtruckinsuranceheadquarters.com, foreviva.com, josephcommercialplumbing.com, lifeofatinker.com, tolmandrywall.com, www.30somethingsproject.com, www.bcp.efe.mybluehost.me, www.bradhoen.com, www.commercialtruckinsuranceheadquarters.com, www.joelonsoftware.com, www.leiraymondguo.com, www.lovingyourliving.com, www.xlw.eik.temp-bh.newfold-dev.site, www.xuy.atn.mybluehost.me, xuy.atn.mybluehost.me

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 10 · H3 11

Links

176 internal · 13 external · 20 broken

Images

6 total · 5 missing alt

Scripts / Styles

64 scripts · 4 stylesheets

JS / CSS size

8.5 KB · 16.5 KB

Page size

83.2 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 structured data (JSON-LD) found
  • robots.txt not found
  • sitemap.xml not found

Accessibility issues

  • Over half of images are missing alt text

Scan details

Requested URL
https://joelonsoftware.com
Final URL
https://www.joelonsoftware.com/
HTTP status
200
HTTP version
HTTP/2
Response time
262 ms
HTML size
83.2 KB
Redirect chain
https://joelonsoftware.com → https://www.joelonsoftware.com/

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Frequently asked questions

What technology does joelonsoftware.com use?
joelonsoftware.com is built with React, WordPress, jQuery, Google Analytics, Nginx.
Is joelonsoftware.com secure (HTTPS)?
Yes. joelonsoftware.com uses TLS 1.3 with a certificate issued by Google Trust Services, valid until Sep 1, 2026.
Who hosts joelonsoftware.com?
Hosting provider information for joelonsoftware.com is not available yet.
What is joelonsoftware.com's SEO score?
joelonsoftware.com scored 75/100 for SEO in the latest analysis (fair).
What is joelonsoftware.com's overall website score?
joelonsoftware.com has an overall SiteGraph score of 80/100, combining SEO, performance, security, and accessibility.
Has joelonsoftware.com's score changed over time?
joelonsoftware.com's overall score has declined by 3 points (from 83 to 80) since Jul 25, 2026.