This detects WebP/AVIF from img src/srcset extensions and picture source types. Images whose format cannot be inferred from HTML, such as extensionless CDN URLs, may not be reflected in the count.
Keep in mind
Compare quality and file size, and inspect the actual delivered format in browser developer tools.
Lazy loading
Passed
0/0
This detects loading="lazy" on img elements. Pages with few images can pass the tool’s heuristic without it.
There are no warning or unknown checks in this section.
05
Technical checks
8 checks
Doctype
Passed
html
The doctype declaration helps browsers render HTML in standards mode.
Keep in mind
Place <!doctype html> at the start of the document and check for unintended output before it.
CSS files
Passed
1
Tool heuristic: up to 4 external files
This counts external stylesheet declarations. Count alone does not measure transfer size, caching or render blocking.
Keep in mind
Inspect duplicate or unused CSS and render blocking, then prioritize changes using actual performance measurements.
JavaScript files
Passed
2
Tool heuristic: up to 6 external files
This counts script elements with src attributes. File count alone cannot measure execution cost or responsiveness.
Keep in mind
Review duplicated scripts and expensive startup work; consider defer, async or delayed execution where appropriate.
Compression
Passed
zstd
This checks the HTML Content-Encoding header. Compression can reduce transfer size, with savings depending on the response.
Keep in mind
Review text compression on the server or CDN, treating already compressed image formats separately.
Security headers
Passed
3/6
Tool heuristic: at least 3 of 6 selected headers present
This detects selected security-related response headers. Their count does not establish policy quality or protection.
Keep in mind
Review CSP, HSTS and other values for the application, then test for blocked resources or broken functionality.
HTTPS
Passed
https://ibugo.org/
This checks whether the final analyzed page used HTTPS. It is not a security audit of the whole site.
Keep in mind
Review certificate validity, mixed content and HTTPS on important linked pages and forms.
HTTPS redirect
Passed
https://ibugo.org/
This checks whether a request starting over HTTP ends on HTTPS.
Keep in mind
Configure consistent HTTP-to-HTTPS redirects and check for unnecessary chains or loops.
W3C validity
Needs review
5 errors · 3 warnings / notices
These are HTML validation results from W3C Nu, not a ranking, accessibility or security certification.
Recommended action
Use message details and line numbers to investigate actual markup issues such as invalid nesting or missing attributes.
Targets and suggested changes
Targethttps://ibugo.org/
HTML response line 67
Stray end tag “div”.
Find the template producing this tag or attribute and validate again. The line number refers to response HTML, not a PHP source file.
View evidence and example changes
Observed content
>
</div>
<
Targethttps://ibugo.org/
HTML response line 76
Style rule “.animate-fade-in” not allowed outside an “@scope” rule in a “style” element in “body”.
Find the template producing this tag or attribute and validate again. The line number refers to response HTML, not a PHP source file.
View evidence and example changes
Observed content
; }
}
.animate-fade-in {
Targethttps://ibugo.org/
HTML response line 79
Style rule “.scrollbar-none::-webkit-scrollbar” not allowed outside an “@scope” rule in a “style” element in “body”.
Find the template producing this tag or attribute and validate again. The line number refers to response HTML, not a PHP source file.
View evidence and example changes
Observed content
ds;
}
.scrollbar-none::-webkit-scrollbar {
Targethttps://ibugo.org/
HTML response line 82
Style rule “.scrollbar-none” not allowed outside an “@scope” rule in a “style” element in “body”.
Find the template producing this tag or attribute and validate again. The line number refers to response HTML, not a PHP source file.
View evidence and example changes
Observed content
ne;
}
.scrollbar-none {
Targethttps://ibugo.org/
HTML response line 594
A “style” element in “body” must be the first child of its parent.
Find the template producing this tag or attribute and validate again. The line number refers to response HTML, not a PHP source file.
View evidence and example changes
Observed content
/div>
<style>@keyfr
There are no warning or unknown checks in this section.
CSS files and locations1 saved
Up to 100 files per type are saved. File count alone does not establish a defect in any file.
URL
HTML response location
https://ibugo.org/static/dist/styles.css
28 · /html/head/link[2]
JavaScript files and locations2 saved
Up to 100 files per type are saved. File count alone does not establish a defect in any file.
This checks the robots.txt response. File presence does not verify all crawler permissions or actual indexing.
Keep in mind
Review bot and path rules for your intended policy. Protect private information with authentication and access controls.
XML Sitemap
Passed
https://ibugo.org/sitemap.xml
This detects a sitemap format at a declared or default URL. It does not crawl and validate every listed URL.
Keep in mind
Include intended canonical URLs and meaningful update dates. Declare a custom sitemap location in robots.txt.
llms.txt
Needs review
The expected configuration was not detected.
This checks for a text response at /llms.txt. Its presence does not guarantee use by an AI service or search visibility.
Recommended action
If you publish one, describe public resources accurately and keep its content and links current.
Targets and suggested changes
Targethttps://ibugo.org/llms.txt
/llms.txt
If desired, publish UTF-8 text at the root and add real public documentation links. This is optional.
View evidence and example changes
Example - adapt to the actual content and environment
# 온라인 부고장 서비스 - 모두의 부고장
- [Home](https://ibugo.org/)
AI crawlers
Passed
AI search/answer bots allowed 5/5 · training bots allowed 3/3
Passes when every AI search/answer bot is allowed; training bots are shown for reference only
This interprets root-path robots.txt rules for five AI search/answer bots (which read pages to cite them in answers) and three training bots. Only the search/answer bots decide the result; training bots are shown for reference. Actual citations are not checked.
Keep in mind
Allow the search/answer bots if you want to be cited in AI answers. Blocking training crawlers is a policy choice and does not affect this result.
There are no warning or unknown checks in this section.
Run Google Lighthouse performance, accessibility, best practices and SEO checks. Device-specific results are cached for one day and are separate from the overall score above.