How to fix: Sitelink assets missing on Search campaigns

TL;DR

Sitelinks are the small clickable deep links that appear beneath your Search ad — Pricing, Book a demo, Customer stories, Contact. They expand the visible SERP footprint, route users to the page that matches their intent, and Google's own data shows campaigns running at least six sitelinks with descriptions see roughly 3.5% more conversions at a similar cost per conversion [1]. Without them your ad shows as a single bare block and you forfeit the most reliable CTR lift in Search Ads. Add six or more deep links per campaign with both description lines filled in, and add an account-level fallback so every campaign inherits a complete set.

Why it matters

A Search ad without sitelinks occupies one block of SERP real estate — headline, display URL, description. A Search ad with six sitelinks and descriptions occupies three to four times that vertical space and pushes organic results and competitor ads further down the page [1]. That visibility advantage is the mechanism behind the CTR and conversion lift.

The conversion mechanism is sharper. Searchers come in with different intent — some want to compare prices, some want to see proof, some are ready to talk. A homepage funnel forces all of them through the same path. Sitelinks shortcut each intent to the right page in one click. The user who clicks Pricing skips two steps; the user who clicks Customer stories skips the trust-building lift the marketing team would otherwise have to engineer on the homepage.

Google rebranded extensions to assets in 2022, but the surface and the impact are the same. What changed is auction eligibility — assets serve when Google's algorithm predicts they will improve ad performance, so impact builds as serving frequency grows over the first week rather than appearing instantly.

The CTR uplift cited in industry analyses typically lands in the 5-15% range on ad groups where sitelinks serve, with the conversion lift Google itself documents at roughly 3.5% at similar cost per conversion when campaigns hit the six-sitelinks-with-descriptions threshold [1]. Accounts that never set them up are leaving that lift on the table month after month.

How to fix

1. Open the campaign and switch to the Assets tab (Campaigns → select campaign → Assets → Sitelink), then click the plus icon to add Sitelink assets at campaign level. Campaign-level sitelinks override account-level fallbacks, so set them up where the ad group concentration justifies bespoke deep links.

2. Create at least six sitelinks pointing to your highest-value deep pages. A defensible default mix for most B2B and considered-purchase verticals: Pricing, Book a demo or Free trial, Customer stories or Case studies, Features or top-converting category, Comparison or vs-competitor page, Contact or About. For e-commerce swap the comparison page for a top-category collection and the demo link for a shipping/returns page.

3. Fill in both description lines for every sitelink — each accepts 35 characters. Descriptions are optional in the UI but Google notes they are required to unlock the expanded two-line ad format that takes significantly more SERP space [1]. Bare sitelinks render as a thin row of links; sitelinks with descriptions render as a full mini-block per link.

4. Match the sitelink landing URL to the link text exactly. If the link text says Pricing, the URL must land on the pricing page — not the homepage with a #pricing anchor, not a generic plans page. Mismatched URLs hurt Quality Score, confuse Smart Bidding's landing-page experience signal, and waste the click.

5. Add sitelinks at the account level as a fallback (Tools → Shared library → Assets → Sitelink). Account-level assets serve on any campaign that has fewer than six campaign-level sitelinks, so they fill gaps without overriding the bespoke campaign sets. This is the single fastest one-time fix for an account with dozens of campaigns and patchy sitelink coverage.

6. Wait 24 hours for asset review, then verify on both a real mobile device and desktop that sitelinks render on the live SERP. Desktop ads can show up to six sitelinks per impression, mobile up to eight [1]. Serving builds over the first week as Google's algorithm learns when to surface each sitelink.

Common mistakes

One generic sitelink set for an account selling six different products. Each campaign concentrates on a different intent — pricing-shoppers, free-trial-seekers, enterprise prospects. Campaign-level sitelinks let you tailor the deep links to that intent. Account-level only is the fallback, not the strategy.

Sitelinks that just repeat the headline. A Pricing sitelink on an ad whose headline already says "See pricing" is wasted real estate. Sitelinks should add intent paths the headline doesn't already cover — proof (Customer stories), trust (About), urgency (Free trial), comparison (vs Competitor).

Skipping descriptions. The two description lines are what unlock the expanded ad format that takes the most SERP space. Leaving them blank shrinks the sitelink to a one-line link list and forfeits most of the visibility advantage [1].

Mismatched landing pages. A "Free trial" sitelink that lands on the homepage with a small Sign up button at the top kills the conversion intent the click signaled. The landing page must deliver on the link text within the first visible viewport.

Set-and-forget for two years. Pricing pages get renamed, product lines get retired, comparison pages get rebuilt. Sitelinks pointing at 404s or stale pages fail review or worse — serve and lose the click. Audit sitelink URLs quarterly.

FAQ

How many sitelinks do I need at minimum? Google's serving cap is six on desktop and eight on mobile per ad, but only campaigns with at least six sitelinks plus descriptions hit the 3.5% conversion lift threshold Google documents [1]. Aim for six to eight per campaign, all with full descriptions.

Do sitelinks always serve? No — assets are auction-eligible, not guaranteed. Google serves them when the algorithm predicts they will lift ad performance. Top-of-page ads see sitelinks far more often than bottom-of-page or sidebar ads, so accounts with low Search impression share will see smaller absolute lift.

Should I set sitelinks at account or campaign level? Both. Account-level acts as a fallback so every campaign inherits a complete set; campaign-level overrides with bespoke deep links where the campaign's intent justifies them. Account-level alone is acceptable for tiny accounts; campaign-level alone is acceptable for big accounts with uniform sitelink reviews. Both is the durable answer.

Can I A/B test sitelink copy? Indirectly — Google rotates sitelinks based on predicted performance, so adding a new variant alongside existing ones lets the algorithm shift serving frequency to the winner. Hard A/B at the ad level is not exposed in the UI; trust the algorithm.

How do sitelinks interact with PMax? PMax campaigns also use sitelink assets, with the same caps and best-practice minimums (see Performance Max overview). Setting up sitelinks at the account level covers PMax campaigns by default.

Sources

1. Google Ads Help — Sitelink assets. https://support.google.com/google-ads/answer/2375416
2. Google Ads Help — About assets. https://support.google.com/google-ads/answer/7332837