dev.to
Measuring…
dev.to
Scanned:
84/ 100
Score by axis
- Security90
- SEO70
- Reputation100
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Fix what matters first
- 1+4
- 2Core Web Vitals (PageSpeed)+5
Improve Core Web Vitals — see the PageSpeed Insights report for specifics.
- 3Image alt text+3
Most images lack alt text — add descriptive alt attributes.
- 4XML sitemap+2
Fix the Sitemap: URL in robots.txt so it returns 200, or remove the directive.
- 5Structured data (JSON-LD)+2
Add schema.org to enable rich results.
Recommendations are ranked by their impact on your score.
All checks
Security
90/ 100- Pass
HTTPS & HTTP→HTTPS redirect
HTTPS available; HTTP redirects to HTTPS
- Pass
TLS certificate validity
Valid; expires in 149 days
expires 2026-12-12 · GlobalSign Atlas R3 DV TLS CA 2025 Q4 - Pass
HSTS (Strict-Transport-Security)
Present
max-age=31557600 - Pass
Content-Security-Policy
Present
frame-ancestors https://forem.com https://version-feb-19-mjhc7.b-cdn.net https:/… - Warn
Core security headers
Missing: X-Frame-Options
present: X-Content-Type-Options, Referrer-PolicyAdd the missing headers: X-Frame-Options.
- Pass
Mixed content (HTTP on HTTPS)
No insecure (http://) subresources
- Pass
SPF email anti-spoofing
record present
v=spf1 a mx include:_spf.google.com include:sendgrid.net include:servers.mcsv.net include:shops.shopify.com ~all - Pass
DMARC email anti-spoofing
record present
v=DMARC1; p=reject; sp=reject; pct=100; rua=mailto:fb91c946140a4e15a5cb3d172f97ac81@dmarc-reports.cloudflare.net; - N/A
Vulnerable front-end libraries
No recognizable front-end library versions detected
- N/A
CMS known vulnerabilities
No CMS detected
Performance
74/ 100- Pass
Time to First Byte
Fast
4 ms - Pass
Text compression
Enabled
gzip - Pass
HTTP/2 or HTTP/3
Modern
HTTP/2.0 - Pass
Cache-Control
Present
public, no-cache - Warn
Core Web Vitals (PageSpeed)
perf 68/100, 3152ms, 0.00 (field)
Improve Core Web Vitals — see the PageSpeed Insights report for specifics.
SEO
70/ 100- Pass
Page title
13 characters
DEV Community - Pass
Meta description
83 characters
A space to discuss and keep up software development and manage your software career - Pass
- Pass
- Warn
XML sitemap
Referenced in robots.txt but not reachable (404)
https://dev.to/sitemap-index.xmlFix the Sitemap: URL in robots.txt so it returns 200, or remove the directive.
- Pass
Single H1
1 H1 tag(s)
Posts - Fail
Image alt text
35/112 images have alt (31%)
Most images lack alt text — add descriptive alt attributes.
- Warn
Structured data (JSON-LD)
No structured data
Add schema.org to enable rich results.
Infrastructure
83/ 100- N/A
CMS detection
No CMS fingerprint detected
- Pass
Web server
Identified
Heroku - Pass
CDN detection
Detected
Fastly - Pass
TLS version
Up to date
TLS 1.2 - Warn
IPv6 (AAAA record)
No AAAA record
Add an AAAA record to serve visitors over IPv6.
Reputation
100/ 100- Pass
Google Safe Browsing
Not flagged
checked: Google Safe Browsing - Pass
Domain blacklist status
Not on major blocklists
checked: Spamhaus DBL, SURBL - Pass
Domain age
Registered ~10 years ago
2016-04-05 - Pass
Domain expiry
Expires in 262 days
2027-04-05
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