Crawlability vs. Indexability: What’s the Difference?

Crawlability and indexability are two closely related concepts in technical SEO, but they describe different stages of how search engines process your website.

Crawlability determines whether search engines can discover and access a page. Indexability determines whether that page is eligible to be included in a search engine’s index.

A page can be crawlable but not indexable. Even when a page is both crawlable and indexable, that does not guarantee that Google will actually index it.

For PrestaShop stores, understanding this distinction is particularly important because ecommerce websites can contain many different types of URLs, including products, categories, filters, parameters, combinations, internal search pages, and utility pages. Some should be accessible and indexable, while others may not need independent search visibility.

What Is Crawlability?

Crawlability describes whether search engine crawlers can discover, access, and navigate a page.

Search engines discover URLs through different sources, including internal links, sitemaps, previously known URLs, and links from other websites. Once a URL is discovered, the crawler may attempt to access it and process its content.

Several factors can affect crawlability, including:

• Internal linking
• txt rules
• Website navigation
• Server availability
• Security or firewall restrictions
• URL structure
• Redirects and broken links

For a PrestaShop store, good crawlability means important product, category, CMS, and other valuable pages have clear and accessible paths for search engine crawlers.

If you want to investigate these factors in detail, including robots.txt, internal links, URL variations, redirects, and server accessibility, see the dedicated crawlability guide.

What Is Indexability?

Indexability describes whether a page is eligible to be included in a search engine’s index.

A page may be accessible to search engines but contain signals indicating that it should not be indexed or that another URL should be treated as the preferred version.

Important factors related to indexability include:

• noindex directives
• Canonical URLs
• HTTP status
• Duplicate or very similar content
• Page value and uniqueness
• Search engine indexing decisions

It is also important to distinguish between indexable and indexed.

An indexable page is technically eligible for indexing. An indexed page is one that the search engine has actually included in its index.

Indexable ≠ Guaranteed to be indexed

If you need to determine whether a PrestaShop page is indexable and how to check its indexing signals, see the dedicated indexability guide.

Crawlability vs. Indexability: The Key Difference

The easiest way to understand the difference is to look at the question each concept answers.

In simple terms:

Crawlability = Can the search engine reach the page?

Indexability = Can the page be considered for the search index?

Indexed = Has the search engine actually included the page in its index?

These concepts describe different stages of the same process and should not be used interchangeably.

How Do Crawlability and Indexability Work Together?

Crawlability generally comes before indexability in the search engine processing flow.

URL exists → URL is discovered → Page is crawled → Indexing signals are evaluated → Search engine decides whether to index the page → Indexed page may appear in search results

Understanding this sequence helps identify where an SEO problem is occurring.

Step 1: Search Engines Discover the URL

Before crawling a page, a search engine first needs to know that the URL exists.

URLs can be discovered through sources such as:

• Internal links
• XML sitemaps
• External links
• Previously discovered URLs

For example, a crawler might start from a category page and follow a link to a product page.

Step 2: Search Engines Crawl the Page

After discovering a URL, the crawler may attempt to access it.

At this stage, crawlability becomes important.

The crawler needs to be able to reach the page and receive an appropriate response from the website.

Problems with robots.txt, server accessibility, navigation, security rules, or other technical elements can interfere with this process.

Step 3: Search Engines Evaluate the Page for Indexing

Once the page can be accessed and processed, search engines evaluate signals related to indexing.

These may include:

• Whether a noindex directive exists.
• Which URL is declared as canonical.
• Whether the page redirects.
• Whether similar or duplicate pages exist.
• Whether another URL should be treated as the representative version.

This is where indexability becomes relevant.

Step 4: Search Engines Decide Whether to Index the Page

Passing the previous checks does not automatically mean that the page will enter the index.

A page can be:

• Crawlable
• Technically indexable
• Available with a normal 200 response
• Free from an unintended noindex

and still not be indexed.

Search engines ultimately decide which pages to include in their indexes. They may choose not to index a page if, for example, it is substantially similar to another URL or provides little independent search value.

Crawlable + Indexable ≠ Guaranteed indexing

Can a Page Be Crawlable but Not Indexable?

Yes.

This is one of the clearest ways to understand the distinction between the two concepts.

Imagine a product page that search engines can access normally.

• Is internally linked.
• Is not blocked by robots.txt.
• Loads successfully.
• Returns a normal response.

The page is therefore crawlable.

However, suppose its HTML contains: <meta name="robots" content="noindex">

Search engines can crawl the page, but the noindex directive tells them not to include it in the search index.

Crawlable: Yes

Indexable: No

This situation is not necessarily an SEO error. Some pages are intentionally made crawlable while being excluded from search results.

The problem occurs when noindex is unintentionally applied to a product, category, or other page that you want customers to discover through organic search.

Can a Page Be Indexable but Not Crawlable?

This situation requires more careful interpretation.

A page may appear to have no obvious indexing restriction. For example, you may expect it to be indexed because it has no intended noindex directive.

However, if search engines cannot properly access the page, they may not be able to process its content and current indexing signals as expected.

For example, an important product URL might be restricted from crawling through robots.txt or affected by a technical accessibility problem.

From the merchant’s perspective, the page may be intended for indexing. But the crawlability problem interferes with the normal process through which search engines access and evaluate that page.

This is why it is usually more useful to think about the sequence:

Can search engines access the page? → Can the page be considered for indexing?

rather than treating crawlability and indexability as completely independent settings.

Can a Page Be Crawlable and Indexable but Still Not Indexed?

Yes.

This distinction is particularly important when diagnosing SEO problems.

Suppose a product page:

• Returns 200 OK.
• Can be crawled by Google.
• Does not contain noindex.
• Has an appropriate canonical URL.
• Is internally accessible.

The page may appear technically eligible for indexing.

However, Google may still decide not to include that URL in its index.

Possible situations include:

• The page is very similar to another page.
• Google chooses another URL as canonical.
• The page provides little unique search value.
• The URL is known and crawled but has not been selected for indexing.

This means that seeing a page excluded from Google does not automatically indicate a crawlability problem or an incorrect noindex setting.

After verifying the technical signals, you may also need to evaluate the page’s uniqueness, purpose, content, and relationship with other URLs.

Common Crawlability and Indexability Scenarios in PrestaShop

Different combinations of crawlability and indexability can occur across a PrestaShop store.

These scenarios demonstrate why simply asking “Can Google access this URL?” is not enough when investigating indexing problems.

Likewise, finding no noindex directive does not prove that a page will appear in Google.

You need to understand where the URL is in the discovery, crawling, indexing, and selection process.

Which Should You Check First: Crawlability or Indexability?

When an important PrestaShop page is not appearing in search, start with crawlability before investigating more detailed indexing issues.

1. Can Search Engines Access the Page?

First determine whether Google can discover and access the intended URL.

Check for obvious crawlability problems involving:

• txt
• Internal links
• Server accessibility
• Broken URLs
• Other access restrictions

If Google cannot properly access the page, investigate the crawlability problem first.

2. Is the Page Indexable?

If the page can be accessed, check whether anything prevents or discourages that URL from being indexed independently.

Review:

• noindex
• HTTP status
• Canonical URL
• Duplicate or alternative URLs

[See how to check PrestaShop indexability →]

3. Is the Page Actually Indexed?

Next, check the URL in Google Search Console.

A page may be technically crawlable and indexable while still being excluded from Google's index.

Google Search Console can help you determine how Google currently understands the URL and whether it has selected another canonical.

4. Does the Page Provide Enough Independent Search Value?

If the technical signals appear correct, investigate the page itself.

Ask whether the page:

• Provides useful content.
• Has a clear purpose.
• Offers meaningful information beyond similar URLs.
• Deserves to function as an independent search landing page.

At this point, the problem may no longer be simply about crawlability or indexability settings.

A Simple Crawlability vs. Indexability Checklist

When an important PrestaShop page does not appear in search, use these three groups of questions.

Crawlability

• Can search engines access the URL?
• Is robots.txt blocking important content?
• Can the page be reached through crawlable internal links?
• Does the server respond properly?

Indexability

• Does the page contain an unintended noindex directive?
• Does it return the expected HTTP status?
• Does its canonical point to the intended URL?
• Does the page deserve independent search visibility?

Actual Indexing

• Is Google indexing the URL?
• Is Google selecting the expected canonical?
• If the URL is not indexed, what does Google Search Console report?

This sequence helps distinguish an access problem, an indexability problem, and a situation where Google has simply not selected an otherwise eligible page for indexing.

Check Crawlability and Indexability with PrestaHero SEO Audit

Crawlability and indexability depend on multiple technical SEO signals across your store. As a PrestaShop catalog grows, checking URLs, robots.txt, XML sitemaps, canonical URLs, redirects, and related SEO elements manually can become time-consuming.

PrestaHero SEO Audit brings these technical SEO tools together in your PrestaShop back office, making it easier to identify issues and manage important SEO settings across your store.

Check your PrestaShop SEO with PrestaHero SEO Audit

Crawlability Comes Before Indexability

Crawlability and indexability solve two different questions:

Crawlability: Can search engines discover and access the page?

Indexability: Can the page be considered for inclusion in the search index?

A page generally needs to be accessible and eligible for indexing to have the opportunity to appear in organic search. But neither condition guarantees that Google will actually index it.

When troubleshooting an important PrestaShop page, follow the process in order:

Discovery → Crawling → Indexability → Actual indexing

Understanding where the problem occurs makes it much easier to investigate the right technical SEO signals instead of treating every missing page as the same type of indexing problem.