programmers.co.kr SEO report

6 characters · tool reference range 10-70

The title identifies the page and its subject. The character range below is this tool’s heuristic, not a search engine limit.

<title>프로그래머스</title>

<title>Specific page topic | Brand</title>

55 characters · tool reference range 70-160

The meta description summarizes a page. Search engines may show a different snippet for a query or device.

<meta name="description" content="SW개발자를 위한 평가, 교육의 Total Solution을 제공하는 개발자 성장을 위한 베이스캠프">

<meta name="description" content="Summarize this page’s actual service and key information.">

A canonical link signals the preferred URL among similar pages. Its presence does not confirm which URL a search engine selects.

<link rel="canonical" href="https://programmers.co.kr/">

This checks noindex and none directives in HTML and response headers. It does not query a search engine’s index.

Open Graph supplies title, description and image candidates for link previews. This check looks for those three properties.

Card metadata describes a sharing preview format. Detecting a tag does not verify the preview shown by a platform.

At least one JSON-LD block with @type and no unreadable blocks

JSON-LD describes entities and relationships in a machine-readable form. Parsing JSON is separate from validating required search feature properties.

0

{
    "@context": "https://schema.org",
    "@type": "WebPage",
    "url": "https://programmers.co.kr/",
    "name": "프로그래머스"
}

Headings organize a page into a main topic and supporting sections. This tool checks for one H1 and shows the saved H2-H6 structure.

0

<h1>Main topic of this page</h1>

Alternative text conveys an image’s meaning. The count includes images with non-empty alt text.

The html lang attribute identifies the document’s primary language and helps assistive software select pronunciation.

The encoding declaration tells clients how to decode text. It must match the actual response bytes.

Tool reference range 15-70%; not an official ranking threshold.

This compares visible text length with HTML length. It cannot determine content quality or rankings on its own.

0.59%

This counts links to the same site. Navigation and contextual links create routes to related information.

This heuristic detects query strings and underscores. Their presence does not make a URL invalid or unindexable.

<a href="https://programmers.co.kr?locale=ko" aria-label="프로그래머스 로고 링크" data-hackle-value='{"key":"gnb_clicked","properties":{"entry_route":"","depth1":"logo"}}' class="LogoLinkstyle__LogoLink-sc-pnxc3t-0 kcIizC"><svg xmlns="http://www.w3.org/2000/svg" width="178" height="25" fill="none" viewbox="0 0 178 25"><path fill="#202B3D" fill-rule="evenodd" d="M30.713 4.845h3.342v1.574h.048q.218-.32.57-.652.35-.332.823-.603a5 5 0 0 1 1.029-.442 4 4 0 0 1 1.186-.173q1.308 0 2.374.455t1.828 1.28q.763.823 1.174 1.955.412 1.132.412 2.485 0 1.255-.375 2.398a6.6 6.6 0 0 1-1.066 2.03 5.2 5.2 0 0 1-1.683 1.414q-.993.53-2.252.53a6.2 6.2 0 0 1-2.119-.357 3.4 3.4 0 0 1-1.61-1.218h-.049v6.888h-3.632zm3.342 5.977q0 1.353.763 2.19.762.836 2.143.836t2.143-.836.763-2.19-.763-2.19q-.763-.835-2.143-.835t-2.143.836q-

<a target="_self" href="https://school.programmers.co.kr/challenge_algorithms" rel="noreferrer" class="NavLinkstyle__Link-sc-a5lqib-4 hTFFrV DesktopGnbSubMenuItemstyle__ThreeDepthNavLink-sc-usvvmw-6 gNOxtk" data-hackle-value='{"key":"gnb_clicked","properties":{"entry_route":null,"depth1":"school","depth2":"MY 스쿨","depth3":"문제은행"}}'><div class="NavLinkstyle__LinkContent-sc-a5lqib-5 bSoVLa"><span class="NavLinkstyle__LinkText-sc-a5lqib-1 ijDNQv">문제은행</span></div></a>

<a target="_self" href="https://school.programmers.co.kr/learn/challenges?tab=algorithm_practice_kit" rel="noreferrer" class="NavLinkstyle__Link-sc-a5lqib-4 hTFFrV DesktopGnbSubMenuItemstyle__ThreeDepthNavLink-sc-usvvmw-6 gNOxtk" data-hackle-value='{"key":"gnb_clicked","properties":{"entry_route":null,"depth1":"codingTest","depth2":"코딩테스트 문제","depth3":"알고리즘 고득점 Kit"}}'><div class="NavLinkstyle__LinkContent-sc-a5lqib-5 bSoVLa"><span class="NavLinkstyle__LinkText-sc-a5lqib-1 ijDNQv">알고리즘 고득점 Kit</span></div></a>

<a target="_self" href="https://school.programmers.co.kr/learn/challenges?tab=sql_practice_kit" rel="noreferrer" class="NavLinkstyle__Link-sc-a5lqib-4 hTFFrV DesktopGnbSubMenuItemstyle__ThreeDepthNavLink-sc-usvvmw-6 gNOxtk" data-hackle-value='{"key":"gnb_clicked","properties":{"entry_route":null,"depth1":"codingTest","depth2":"코딩테스트 문제","depth3":"SQL 고득점 Kit"}}'><div class="NavLinkstyle__LinkContent-sc-a5lqib-5 bSoVLa"><span class="NavLinkstyle__LinkText-sc-a5lqib-1 ijDNQv">SQL 고득점 Kit</span></div></a>

<a target="_self" href="https://school.programmers.co.kr/skill_check_assignments" rel="noreferrer" class="NavLinkstyle__Link-sc-a5lqib-4 hTFFrV DesktopGnbSubMenuItemstyle__ThreeDepthNavLink-sc-usvvmw-6 gNOxtk" data-hackle-value='{"key":"gnb_clicked","properties":{"entry_route":null,"depth1":"codingTest","depth2":"코딩테스트 문제","depth3":"과제테스트"}}'><div class="NavLinkstyle__LinkContent-sc-a5lqib-5 bSoVLa"><span class="NavLinkstyle__LinkText-sc-a5lqib-1 ijDNQv">과제테스트</span></div></a>

Viewport metadata enables device-width layouts. It is not a test of real mobile layout or touch targets.

This detects a link declaration for a browser icon, rather than verifying its rendered appearance.

This detects a touch icon declaration for saved home-screen shortcuts.

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.

This detects loading="lazy" on img elements. Pages with few images can pass the tool’s heuristic without it.

The doctype declaration helps browsers render HTML in standards mode.

Tool heuristic: up to 4 external files

This counts external stylesheet declarations. Count alone does not measure transfer size, caching or render blocking.

Tool heuristic: up to 6 external files

This counts script elements with src attributes. File count alone cannot measure execution cost or responsiveness.

This checks the HTML Content-Encoding header. Compression can reduce transfer size, with savings depending on the response.

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.

This checks whether the final analyzed page used HTTPS. It is not a security audit of the whole site.

This checks whether a request starting over HTTP ends on HTTPS.

These are HTML validation results from W3C Nu, not a ranking, accessibility or security certification.

This checks the robots.txt response. File presence does not verify all crawler permissions or actual indexing.

This detects a sitemap format at a declared or default URL. It does not crawl and validate every listed URL.

This checks for a text response at /llms.txt. Its presence does not guarantee use by an AI service or search visibility.

# 프로그래머스

- [Home](https://programmers.co.kr/)

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.