Is it more effective to place links on the homepage than to modify robots.txt?

What role does internal PageRank play in crawling?

PageRank, even though it is no longer publicly displayed, remains the fuel that powers Google's crawling engine. Each page has an internal PageRank score, conveyed through the links it receives.

When the homepage points to a section, it transfers a significant share of its authority. This signal indicates to Google that the area deserves to be crawled as a priority. The result: more crawl budget allocated and accelerated indexing of the URLs in that section.

Why isn't robots.txt the solution for managing crawling?

Many SEOs still think that by blocking certain sections via robots.txt, they will force Googlebot to focus on strategic content. This is a misunderstanding.

Blocking URLs in robots.txt does not free crawl budget to be used elsewhere. Google crawls what it perceives as having perceived value, not what remains after exclusion. If your strategic pages are poorly linked, they won't be crawled more often just because you blocked access to the /admin/ directory.

How does the link architecture impact PageRank dissemination?

A flat architecture, where important pages are accessible in 2-3 clicks maximum from the homepage, facilitates the flow of PageRank. Each additional level of depth dilutes the SEO juice conveyed.

Placing direct links from the homepage to strategic sections is the most direct way to ensure that Google discovers, crawls, and indexes these areas quickly. It is an architectural signal that says: “Here is what really matters on this site.”

• Internal PageRank remains a central criterion for determining which pages Google crawls as a priority
• Blocking URLs in robots.txt does not redistribute crawl budget to other pages
• An optimized link architecture from the homepage boosts visibility and indexing of strategic sections
• Each additional click from the homepage dilutes PageRank transmitted and slows down crawling
• Prioritizing internal linking is better than making technical adjustments to robots.txt

Is this statement consistent with real-world observations?

Yes, and it is validated by years of testing. Sites that restructure their internal linking to bring strategic pages closer to the homepage consistently see an increase in the crawling rate of these sections.

It has also been observed that technically accessible pages buried 5-6 clicks deep remain underindexed, even without a robots.txt directive. Crawl budget is limited: Google prioritizes pages it perceives as important through the link graph.

What nuances should be added to this directive?

Matt Cutts discusses PageRank dissemination, but user experience should also be considered. Stuffing the homepage with internal links purely for SEO reasons can degrade navigation and conversion rates.

The balance lies in a strategic linking approach that serves both crawl and UX: well-thought-out dropdown menus, contextual link blocks, and organized footers. Adding 50 links in the footer just for SEO won't be effective for long. [To be verified]: Google may devalue links placed in low-engagement areas (overloaded footer, ignored sidebar).

In what cases does this rule not apply?

If your site already has massive domain authority and a virtually unlimited crawl budget (like a major news site), the impact will be less visible. Google is already crawling everything, whether you optimize or not.

Another case: if the section you want to boost contains duplicate content or low-quality pages, increasing internal links won't help. Google will crawl, but may not index. The issue then is content quality, not architecture.

What should be done to optimize internal linking?

Start by identifying the strategic sections of your site: those that generate conversions, qualified traffic, or those you want to rank quickly. Then, ensure they receive direct links from the homepage.

Use the main navigation menus, editorial blocks on the homepage, or even a category carousel to point to these areas. Every link counts, especially if placed at the top of the page where the transmitted PageRank is maximal.

What mistakes should be avoided in link architecture?

Do not scatter your crawl budget by linking to hundreds of secondary pages from the homepage. Prioritize a maximum of 5 to 10 key sections. Too many links dilute PageRank and drown out important signals.

Avoid JavaScript links that are not detectable by Googlebot (especially on older architectures). If your main menu loads in JS without an HTML fallback, Google may not follow those links correctly. Test with Search Console and the URL Inspection tool.

How to check if the architecture is optimized?

Use Search Console to analyze the crawl rate by section. If a strategic area is poorly explored, it often signals a failing internal linking structure. Compare the number of discovered pages versus indexed pages.

Conduct an audit with Screaming Frog or a similar crawler to map the click depth from the homepage. Any strategic page more than 3 clicks deep should be elevated. Also check the distribution of internal PageRank with tools like Oncrawl or Botify if you have the budget.

• Identify 5 to 10 strategic sections of your site to prioritize
• Place direct links from the homepage to those sections (menu, editorial blocks)
• Limit the click depth to 2-3 maximum for important pages
• Avoid overcrowding the homepage with hundreds of non-priority links
• Test the crawling of internal links with Search Console and a technical crawler
• Prefer standard HTML links over undetectable JavaScript