Link Building Tools: What to Buy, and When

Link building tools are the software that finds link opportunities, finds the people behind them, runs and records the outreach, and confirms the links went live. This guide is for the one or two marketers running link acquisition inside a seed to Series B B2B SaaS or AI company, chasing a handful of placements a month with no PR retainer and no dedicated budget. One disclosure before the list starts: GrowthHasten is an emerging SEO and growth studio, and link building is something we sell as a service rather than as software. Nothing on this list is our product. It groups ten tools by the job they do, prices each from the vendor's own page on a stated date, sets out what a working stack costs at three spend levels, and names what you can skip.

The short version

• Which tools exist is settled. The five roundups we opened name largely the same nine products, so a sixth list of those names adds nothing.
• The useful question is which acquisition motion you run. Digital PR and resource-page reclamation need close to opposite stacks.
• Under roughly five placements a month, the free stack plus one paid seat covers it. The trigger to spend more is a second person sending, not a bigger ambition.
• Published prices for the same tool disagree across this results page, and two of the ranges in circulation match no pair of tiers either vendor published on the day we checked.
• Every result we opened is published by a company selling either the software on its list or the service that replaces it. Read all of them, this one included, accordingly.

How did we choose these tools, and what are we selling?

Public information only, and a conflict worth naming before the first entry.

GrowthHasten sells link building as a service, inside the digital PR work that earns coverage. We build no software in this category. There is no GrowthHasten entry below, and no product of ours that any recommendation here quietly points toward.

That matters because of what sits around this query. Every one of the five roundups we opened on September 6, 2026 is published by a party selling either the software or the service: two rank their own product first, and three sell link building services alongside the list. That does not make them wrong. It does leave one seat empty, and this article sits in it.

The rules we held to:

• Vendor-sourced pricing only: every price and capability claim comes from the vendor's own pricing or documentation page, opened on September 6, 2026 and dated in the text. Never from another roundup or a homepage.
• Not a ranking: entries are grouped by the job they do, not ordered by preference. There is no winner and no position to argue with.
• Not a test: we have not trialled these products. This surveys what each vendor publishes about itself, not how any of them feels to use for a month.
• No commercial relationship: no vendor paid to appear, sent us access, or saw a draft.
• Anything we could not open is not characterised: Moz appears on four of the five roundups we opened, and we could not load its pricing page on the day we wrote this, so Moz gets no entry and no claim here. That is a limit of our sourcing, not a judgement on the product.

That last rule costs something, which is why it is worth keeping. A roundup describing a tool nobody opened is repeating a rumour with a price attached.

What job are you actually buying a tool for?

Four jobs, and it is worth separating them before any product name enters the conversation.

• Finding opportunities: which sites could plausibly link to you, and which already link to companies like yours.
• Finding and verifying contacts: which human at that site, and whether the address bounces.
• Running and recording outreach: who was emailed, who replied, and how two people avoid pitching the same editor.
• Confirming links landed and stayed: whether the placement published, whether the link is still there, and whether it passes anything.

The roundups we opened bundle all four into one shopping basket, and they have very different urgency. A solo marketer can run job three from a spreadsheet well past the point where a subscription starts to look necessary. Job one is the one that is genuinely hard to do without paying somebody for an index.

Which acquisition motion are you running?

Three, and they need close to opposite stacks. This question should decide the purchase, and it sits upstream of every product name below.

Motion	What the stack needs	What it does not need
Digital-PR-led: data studies, expert commentary, journalist outreach	Journalist and publication contacts, email verification, and a shared record of who was pitched	A deep third-party backlink index. You are pitching people, not reverse-engineering somebody else's link profile
Resource pages and reclamation: broken links, lost links, existing roundups	A backlink index to find pages that already link out, plus a crawler that checks a batch of URLs at once	A media contact database. The contact is usually a webmaster address printed on the page itself
Product-led and community: citations that follow the product, the docs, and the assets	Close to none of it. A free index for measurement, and nothing else	Outreach seats, media databases, and a paid index. Links here follow what you built, not a send list

The common mistake is buying for the motion you intend to run next year. A team that has never fielded a data study does not need journalist discovery, and one whose links arrive because other people's tutorials cite its docs does not need outreach seats at all.

If the tactic itself is undecided, start there. Our guide to which link building tactics actually work covers it, and the assets people actually link to covers what the outreach would point at.

Which tools find link opportunities?

Start with the index. Three vendors sell one, and among them the free tier of the first covers more of this job than its usual list placement suggests.

Ahrefs

Best for: a team that wants one index and will use it for competitor link research as well as its own profile.

What it does: Site Explorer reports which pages and keywords bring a site the most organic traffic and who links to it. The free tier, Ahrefs Free, covers sites you verify, with Site Explorer showing "1K backlinks & keywords visible at once" and Site Audit carrying "5K crawl credits/month per project", per the Webmaster Tools page we read on September 6, 2026.

Pricing as published on September 6, 2026: five tiers on the Ahrefs pricing page, from Starter at $29/mo through Lite $129, Standard $249 and Advanced $449 to Enterprise at $1,499/mo on an annual commitment. Lite includes one user, with two more at $40/mo each.

What to check before you buy: the seat count on your tier. Lite is a single login and a second person costs $40/mo on top, which for a two-person team is a category change rather than a rounding error.

Semrush

Best for: teams already paying Semrush for keyword and position work who want the link reports behind the same login.

What it does: the Backlinks tool carries Overview, Backlinks, Anchors, Referring Domains, Indexed Pages, Competitors and Backlink Gap reports, and the interface updates every 15 minutes, per Semrush's own manual page read on September 6, 2026. Backlink Gap is the one that matters here: it surfaces domains linking to competitors and not to you.

Pricing as published on September 6, 2026: SEO $139/mo, rising through Starter $199 and Pro+ $299 to Advanced $549, alongside a free plan at $0. Annual billing is quoted separately, at $117.33/mo for SEO and $165.17/mo for Starter.

What to check before you buy: which plan carries the backlink allowance you need. The comparison we read lists position tracking, site audit, five monitored websites and 500 daily keywords against the $139 SEO plan, and does not itemise backlink limits there. Confirm them with Semrush rather than inferring them from the price.

Majestic

Best for: a second opinion on a link profile, or a historical view a general SEO suite does not carry.

What it does: publishes two separate indexes. The Fresh Index "contains backlinks we've seen in the past 120 days"; the Historic Index "contains all backlinks we've seen since 2006". The Historic Index is not on every plan, and plans are metered in analysis units rather than seats.

Pricing as published on September 6, 2026: Lite $49.99/mo or $499.99/yr, Pro $99.99/mo or $999.99/yr, and API $399.99/mo or $3,999.90/yr, carrying 1 million, 20 million and 100 million analysis units respectively.

What to check before you buy: which index your tier carries. Lite at $49.99 is Fresh Index only, and the Historic Index starts on Pro at $99.99, so a historical view costs double the entry price. After that, check how analysis units map onto the reports you run, because metering by units rather than by seat makes lookup volume the constraint instead of headcount.

One neighbouring job stays separate: finding unlinked mentions of your own brand runs on different methods, compared in our guide to finding unlinked mentions of your brand.

Which tools find and verify contacts?

The split here is journalists versus everybody else, and one product sits on each side of it.

Hunter

Best for: finding and verifying a work email when you already know the site and roughly which role you want.

What it does: finds addresses by domain or by name and verifies them, metered in credits. The pricing page defines the meter precisely: "1 credit = 1 email found via Domain Search, Email Finder, or Bulk Email Finder" and "0.5 credit = 1 email verified via Email Verifier or Bulk Email Verifier."

Pricing as published on September 6, 2026: Free at $0 with 50 credits a month and one connected email account, then Starter $49/mo with 2,000 credits, Growth $149/mo with 10,000 and Scale $299/mo with 25,000.

What to check before you buy: your real monthly credit burn, counting verification. Finding an address then verifying it costs 1.5 credits, so 50 free credits is around 33 verified contacts a month, and a team chasing five placements will not get near that ceiling.

BuzzSumo

Best for: a digital-PR motion that needs the reporters covering a beat, rather than the webmaster behind a resource page.

What it does: content research across its Content Analyzer index, plus journalist discovery and alerting. The pricing page describes finding and engaging "with Journalists most relevant to your specific topics", and each plan carries a fixed alert count and a fixed window of historical data.

Pricing as published on September 6, 2026: Content Creation $199/mo with 1 seat, 2 alerts and 2 years of history, rising through PR & Comms $299 and Suite $499 to Enterprise at $999/mo with 30 seats and 50 alerts.

What to check before you buy: which plan carries the media database. Journalist discovery and media lists start on PR & Comms at $299/mo, not on Content Creation at $199, so a digital-PR motion is buying the second tier rather than the first. If you are buying it for content research instead, check the alert count: the entry plan carries two.

Finding the reporter is the cheap half. Our guide to what to put in the pitch itself covers the expensive half, with a measured reply rate attached.

Which tools run and track outreach?

Three products, though the last is priced in a way that puts it in a different category entirely.

BuzzStream

Best for: the first point at which two people are sending and the spreadsheet costs more than it saves.

What it does: describes itself as an "end-to-end outreach platform", listing contact info discovery, email templates, and open, click and reply tracking, across use cases it names as SEO link building, content promotion, public relations and partner recruitment.

Pricing as published on September 6, 2026: Starter $49/mo with 1 user and 500 contacts, Growth $174/mo with 3 users and 25,000 contacts, then Professional $424/mo and Custom from $999/mo. Extra seats run $58 each on Growth and $70 on Professional.

What to check before you buy: how many people are sending. Starter at $49/mo is one user, and it is the one tier that publishes no price for adding another, so two senders means Growth at $174. Starter is the cheapest outreach seat in this article and also the tightest at 500 contacts, which is the limit to watch if one person is doing all of it.

Pitchbox

Best for: teams past the point where one person owns all the sending, with enough volume to justify a monthly email allowance.

What it does: describes itself as link building software combining prospecting, outreach automation, CRM and reporting. Plans are bounded by outreach emails and prospecting searches per month rather than by contacts alone.

Pricing as published on September 6, 2026: Pro $300/mo monthly or $210/mo annually, with 2 users, 2,000 outreach emails and 1,000 prospecting searches a month. Above it sit Advanced at $600 or $420, Scale at $1,200 or $825, and Enterprise on a custom quote.

What to check before you buy: whether you will send anything close to 2,000 emails a month. That allowance is the main thing the entry tier meters, so the test is your current send volume, not the volume you hope to reach.

Respona

Best for: teams evaluating done-for-you placements rather than outreach software.

What it does: the page we opened prices placements rather than seats, describing "Guaranteed brand placements on auto-pilot" across formats it lists as listicles, product reviews, comparison guides, contextual placements and news features.

Pricing as published on September 6, 2026: per placement, banded by domain rating, on the Respona pricing page: Starter $100 at DR 20+, Standard $160 at DR 30+, Authority $240 at DR 40+, Power $400 at DR 50+ and Elite $500 at DR 60+, with volume discounts starting at 10% from $3,000 a month.

What to check before you buy: whether you are buying software or buying placements, because those carry different diligence. If it is placements, ask how the resulting links are qualified, because Google's spam policies classify a purchased link as spam wherever it is not marked with the right attribute.

Which tools confirm a link went live and stayed live?

Cheaply, and mostly for nothing, which is why this job rarely earns a budget line of its own.

Google Search Console

Best for: every site, since it is the only source here reporting what Google itself has on record.

What it does: the Links report shows top linking sites and top linked pages. Google's own documentation for the report is unusually direct about the limits: it "isn't a comprehensive list of every link on your site. It shows a sample", its tables "are limited to 1,000 rows", and exports run to "up to 100,000 rows of data".

Pricing as published on September 6, 2026: free, with a verified property. There is no paid tier.

What to check before you buy: nothing to buy, so check the sampling caveat instead. A sampled report is a weak instrument for proving one placement exists and a good one for watching a profile's shape over months.

Screaming Frog SEO Spider

Best for: checking a batch of placement URLs at once instead of opening them one at a time.

What it does: a desktop crawler that also runs in list mode, where per the user guide "you can switch to list mode and either paste or upload a list of specific URLs to crawl". It reports HTTP status codes and the links on each page, which is how a quarter's placements get confirmed in one pass.

Pricing as published on September 6, 2026: £199 per year for a licence, with bulk discounts from £189 for 5 to 9 licences down to £169 for 20 or more. The free version carries a "Crawl Limit - 500 URLs".

What to check before you buy: whether 500 URLs covers your list. For a team confirming a few dozen placements a quarter the free version does this job, and the licence becomes a purchase made for other reasons.

Why do published prices for the same tool disagree?

Because different pages quote different plans on different billing terms, and some figures no longer match anything the vendor sells. The middle column records what we saw across the five roundups we opened on September 6, 2026; the right column is what the vendor published the same day.

Tool	Figures in circulation on this results page	What the vendor published on September 6, 2026
Ahrefs	$129/mo on four pages; $99 to $999/mo on one	Five tiers: $29, $129, $249, $449, $1,499. The $129 is the Lite plan
Semrush	$139.95 on three pages; $165.17 on one	$139/mo for the SEO plan billed monthly. $165.17 is the annual-billing monthly rate of Starter, a different plan that costs $199 billed monthly
Pitchbox	$550 to $1,500/mo on one page; $300/mo on another	Pro at $300/mo monthly or $210 annually; Scale at $1,200/mo monthly or $825 annually

None of this is dishonest. Each figure was probably accurate the day it was typed, and software pricing moves faster than roundups get refreshed. What the table shows is how much a bare number hides. The Semrush row resolves cleanly once you ask which plan and which billing term: $139 and $165.17 are both real, and they describe different plans. The $129 Ahrefs figure and the $300 Pitchbox figure each name a genuine current tier. The two ranges match no pair of tiers either vendor published on the day we looked.

So the takeaway is a habit rather than a fact. Treat every price in every roundup, this one included, as a reading with a date on it. Ours were taken on September 6, 2026, and at least one will have moved before you finish evaluating.

What should a link building stack actually cost?

Between nothing and roughly $600 a month for almost every team this article is written for. The trigger to climb a rung is nearly always a second person sending, not a bigger target.

Tier	Monthly spend	What you run
0. The free stack	$0	Search Console for what Google has recorded, Ahrefs Free on properties you verify, Hunter Free at 50 credits, Screaming Frog free to 500 URLs, and a spreadsheet holding the outreach record
1. One paid seat	Roughly $50 to $190	One backlink index (Ahrefs Lite at $129, Semrush SEO at $139, or Majestic Lite at $49.99), plus Hunter Starter at $49 once verification has outgrown the free credits
2. A coordinated stack	Roughly $430 to $460	The index seat plus a dedicated outreach platform. Ahrefs Lite $129 with BuzzStream Growth $174 and Hunter Growth $149 comes to $452. Ahrefs Lite $129 with Pitchbox Pro $300 comes to $429

The triggers, tied to placements rather than headcount:

• Stay at tier 0 until: you are chasing more than about five placements a month, or a second person starts sending and you lose track of who emailed whom. Below that line the constraint is your calendar, and no subscription fixes a calendar.
• Move to tier 1 when: manual prospecting eats an afternoon a week. Between five and fifteen placements a month, one index seat pays for itself the first time it replaces that afternoon, and free contact-finding credits tend to run out around the same point.
• Move to tier 2 when: more than one person is sending. Tier 2 buys coordination, not capability: that two people do not pitch the same editor in the same week, and that a reply does not vanish into the wrong inbox.

Notice what the ladder leaves out. One seat on every subscription product in this article, each at its cheapest paid tier, comes to $814.99 a month, before the Screaming Frog licence and before Respona's per-placement pricing. Tier 2 covers the same four jobs for roughly half that.

What can you skip?

More than the roundups we opened suggest, starting with the category that promises to do the work on your behalf.

• Automated link building tools: anything promising links at volume with no editor deciding. Google's published spam policy documentation names "Using automated programs or services to create links to your site" as link spam, alongside "Exchanging money for links, or posts that contain links" and "Excessive link exchanges". That is not a cheaper version of the work but a different activity carrying a different risk.
• A second backlink index: Ahrefs, Semrush and Majestic all index links, so running two is a second subscription for a marginal difference in coverage. Add it when a specific question forces it, not as insurance.
• A media database with no digital-PR motion behind it: journalist discovery starts at $299/mo. Without data studies or reporter pitching, that is journalist pricing for a job the free stack already covers.
• Outreach seats before a second sender: the value of an outreach platform is that two people do not collide. One person with a spreadsheet has nothing to collide with.
• Third-party authority scores as a purchase criterion: the domain-level scores these tools publish are vendor estimates, not numbers Google uses. Preferring one tool's score is buying the estimate rather than the index underneath it.

One habit outlasts every price change on this page: re-read the vendor's own pricing page in the month before each renewal, not at the moment of purchase. Plan names, tier contents and billing terms all drift, and the month before a renewal is when that check is worth the most.

Before this week is out, write down which of the four jobs is costing you the most time. If it is running outreach or confirming placements, that is a coordination problem and a spreadsheet may still answer it. If it is finding opportunities, that is the seat worth paying for, and the ladder says roughly what it costs.

If nobody owns this work at all, more software will not create the capacity. Our digital PR work is the version where the story, the reporter list and the outreach are run for you.