Technical SEO & Site Audits

Contents

1. 01WelcomeWhat these tools do, how many we grade and what to know before choosing
2. 02Our top threeThe three we'd look at first, and who each one suits
3. 03What they costWhat paid plans start at, the best buy at each budget and the free plans
4. 04The gradesThe highest graded, and how the whole category does on each subject
5. 05Keep or make?Which are worth paying for, and which you could make yourself
6. 06Every toolAll of them, best graded first, with what each costs
7. 07Quick answersThe questions people ask when choosing, each answered in a line or two
8. 08About ToolGPAWho made this guide, what else is on the site, and how to cite it

ToolGPA put this guide together from each tool’s own pages, their app-store listings and our grades. Every fact in it is on the Technical SEO & Site Audits page too, where it is kept up to date. Checked Oct 23, 2026.

Crawl a site for broken links, slow pages and indexing problems, and catch changes before rankings drop.

Before you choose, here are 7 things to know about technical SEO tools, worked out from every one we grade.

1. 1

   We grade 84 technical SEO tools

   49 of them are free or have a free plan, and 23 more let you try before paying. Everything in this guide comes from their own pages and our grades.

2. 2

   Paid plans start at $22.41 a month in the middle

   From $2.44 (XML-Sitemaps.com) to $3,125 (SearchPilot), going by what each one's paid plans start at.

3. 3

   Best value: Yellow Lab Tools, PageSpeed Insights and Lighthouse

   Nothing on our chart scores higher than these without costing more.

4. 4

   0 of 84 have iPhone and Android apps

   73 run in a web browser and 10 have a Windows app. Check the one you need before you fall for anything.

5. 5

   The middle GPA is 2.4

   11 score 3.0 or higher. The highest is Lighthouse, at 3.2.

6. 6

   Best free option: Lighthouse

   Lighthouse has the highest GPA of the free ones, 3.2. Google's open-source audit of page speed, accessibility and SEO.

7. 7

   76 worth keeping, 0 you could make

   By our keep-or-make rules, 76 do something you couldn't reasonably build yourself, 0 are simple enough to make with an AI app builder, and 8 are a close call.

Part 02 · Top three

Our top three

The three we'd look at first, and who each one suits

The three technical SEO tools we'd look at first. First place suits the most people; second and third are the best picks for the people it leaves out. Each has an Insider's Guide of its own.

1. 1st

   

   3.0GPA

   Google Search Console

   Free

   For: Most site owners

   Google Search Console shows the clicks, impressions, positions and queries that bring people from Google, which pages are indexed and why others are not, Core Web Vitals, rich result and links reports, and email alerts about problems. It is free with a Google account, including URL Inspection, sitemaps, the API and up to 100 non-owner users per property. Know the limits: it covers Google only, nothing shows until you verify the site, it runs no crawl of your own, the API stops at 50,000 rows a day per search type, and the BigQuery export needs a billed Google Cloud project.

   The Google Search Console Insider’s Guide

2. 2nd

   

   3.0GPA

   SiteOne Crawler

   Free

   For: Anyone who wants a full-site audit for free

   SiteOne Crawler is a free, MIT-licensed crawler for Mac, Windows and Linux, as a desktop app or a single command-line binary. Each crawl ends in an HTML report scoring security, performance, SEO and accessibility from 0 to 10, covering tags, headings, redirects, 404s, security headers, SSL and caching, and it can fail CI builds or mirror a site. It is second because it shows nothing of how Google sees the site: it runs only on your own computer or server, with no hosted crawler or phone version, JavaScript sites need its optional browser mode, and AI help bills through your own API key.

   The SiteOne Crawler Insider’s Guide

3. 3rd

   

   3.2GPA

   PageSpeed Insights

   Free

   For: Anyone checking page speed and Core Web Vitals

   PageSpeed Insights shows how real Chrome users experienced a page over the past 28 days, with a Core Web Vitals pass or fail, and runs a Lighthouse test on mobile and desktop with suggested fixes. It is free in a browser with no account, and its API works with or without a free key. It is third because it does a narrower job: one URL per run with no monitoring, no real-user data for pages with few Chrome visits, lab scores that vary from run to run, and shared reports that last 30 days.

   The PageSpeed Insights Insider’s Guide

Going by our grades, Yellow Lab Tools, PageSpeed Insights and Lighthouse give the most for the money among technical SEO tools: no tool on this chart scores higher without costing more.

Paid plans start at a middle price of $22.41 a month across the 53 that charge, from $2.44 (XML-Sitemaps.com) to $3,125 (SearchPilot). 20 more cost nothing at all.

27 of the 73 score above the category's average while starting at or below its middle price. 3 cost more than the middle price and score below the average.

Every tool gets five grades, A to F, each with its reason, and a GPA that averages them. Here are the 12 highest graded technical SEO tools, then how the whole category does on each subject.

Tool	Value	Free	Features	Ease	Platforms	GPA
Lighthouse	A	A	C	B	B	3.2
PageSpeed Insights	A	A	C	B	B	3.2
Yellow Lab Tools	A	A	C	B	B	3.2
Baidu Search Resource Platform	A	A	C	C	B	3.0
Beam Us Up	A	A	C	B	C	3.0
Bing Webmaster Tools	A	A	C	C	B	3.0
Google Search Console	A	A	C	C	B	3.0
Hreflang Tags Testing Tool	A	A	D	B	B	3.0
httpstatus.io	A	A	D	B	B	3.0
SiteOne Crawler	A	A	C	B	C	3.0
Yandex Webmaster	A	A	C	C	B	3.0
Chrome UX Report	A	A	D	C	B	2.8

Some software does something you couldn’t reasonably build yourself. Some is simple enough that an AI app builder could make the core of it in an afternoon. Here’s where technical SEO tools land, by the same rules for every tool.

• 76

  Keep it

  It does something you could not reasonably make for yourself, or it costs nothing.

• 8

  Your call

  You could make the core of it, and you would give something up.

• 0

  You could make this

  What it does is the kind of thing an AI app builder makes well, and it charges every month.

Every technical SEO tool we grade, with its GPA and what it costs. Each one has a page of its own on toolgpa.com, with its Insider’s Guide.

1. 1LighthouseFree3.2
2. 2PageSpeed InsightsFree3.2
3. 3Yellow Lab ToolsFree3.2
4. 4Baidu Search Resource PlatformFree3.0
5. 5Beam Us UpFree3.0
6. 6Bing Webmaster ToolsFree3.0
7. 7Google Search ConsoleFree3.0
8. 8Hreflang Tags Testing ToolFree3.0
9. 9httpstatus.ioFree plan · from €10 one-time3.0
10. 10SiteOne CrawlerFree3.0
11. 11Yandex WebmasterFree3.0
12. 12Chrome UX ReportFree2.8
13. 13Google Rich Results TestFree2.8
14. 14GTmetrixFree plan · from $4.99/mo2.8
15. 15Naver Search AdvisorFree2.8
16. 16Schema Markup ValidatorFree2.8
17. 17Schema.devFree2.8
18. 18SEO TracerFree plan · from $4.99/mo2.8
19. 19squirrelscanFree plan · from $19/mo2.8
20. 20XML-Sitemaps.comFree plan · from $2.44/mo2.8
21. 21IntegrityFree plan · from $20 one-time2.6
22. 22LibreCrawlFree2.6
23. 23NitroPackFree plan · from $7/mo2.6
24. 24SchemantraFree2.6
25. 25sitespeed.ioFree2.6
26. 26UnlighthouseFree2.6
27. 27WebPageTestFree plan · from $180/yr2.6
28. 28Xenu's Link SleuthFree2.6
29. 29CrawlCenterFree plan · from $3/mo2.4
30. 30CrawlRavenFree trial · from $29/mo2.4
31. 31Dead Link CheckerFree plan · from $9.95/mo2.4
32. 32Headless-Render-APIFree plan · from $9/mo2.4
33. 33LinkOKFree plan · from $4/mo2.4
34. 34PageVitalsFree trial · from $12/mo2.4
35. 35PreRender24Free trial · from €9.99/mo2.4
36. 36Redirect.pizzaFree plan · from $14.95/mo2.4
37. 37SEO GetsFree plan · from $49/mo2.4
38. 38SEOnautFree plan · from $9/mo2.4
39. 39SitelinerFree plan2.4
40. 40SpeedVitalsFree plan · from $16/mo2.4
41. 41Visual SEO StudioFree plan · from €149/yr2.4
42. 42WebmatikFree plan · from $19/mo2.4
43. 43Website CrawlerFree plan · from $10/mo2.4
44. 44BotifyPaid2.2
45. 45CalibreFree trial · from $75/mo2.2
46. 46CoreDashFree trial · from $16/mo2.2
47. 47DebugBearFree trial · from $99/mo2.2
48. 48Dr. Link CheckFree plan · from $13/mo2.2
49. 49DYNO MapperFree trial · from $39/mo2.2
50. 50IndexCheckrFree trial · from $15 one-time2.2
51. 51JetOctopusFree trial · from $349/mo2.2
52. 52Lighthouse MetricsFree trial · from $10 one-time2.2
53. 53LinkTigerFree trial · from $10/mo2.2
54. 54Little WardenFree trial · from $34.99/mo2.2
55. 55Redirection.ioFree plan · from €20/mo2.2
56. 56Request MetricsFree plan · from $34/mo2.2
57. 57Search Analytics for SheetsFree plan · from $16/mo2.2
58. 58searchVIUFree trial · from €399/mo2.2
59. 59SEO4AjaxFree plan · from $29/mo2.2
60. 60SEOTestingFree trial · from $50/mo2.2
61. 61SiteAnalyzerFree plan · from $108 one-time2.2
62. 62SiteGuruFree plan · from $39/mo2.2
63. 63SpeedCurveFree trial · from $90/mo2.2
64. 64TreoFree plan · from $75/mo2.2
65. 65Alli AIFree trial · from $249/mo2.0
66. 66EncitedFree trial · from $39/mo2.0
67. 67Indexing InsightFree trial · from $75/mo2.0
68. 68LumarPaid2.0
69. 69OncrawlPaid2.0
70. 70Prerender.ioFree trial · from $59/mo2.0
71. 71ScrepyFree trial · from $16/mo2.0
72. 72SeolyzerPaid2.0
73. 73SpotiboFree plan · from $14/mo2.0
74. 74WooRankFree trial · from $53.25/mo2.0
75. 75FandangoSEOFrom $90/mo1.8
76. 76RytePaid1.8
77. 77Schema AppPaid1.8
78. 78SEO Site CheckupFree trial · from $29/mo1.8
79. 79URL ProfilerFree trial · from $19.95/mo1.8
80. 80AudistoFrom €99/mo1.6
81. 81MySiteAuditorFrom $40.5/mo1.6
82. 82RUMvisionFrom €150/mo1.6
83. 83SearchPilotFrom $37,500/yr1.6
84. 84WordLiftFrom $879/mo1.6

ToolGPA grades software the way a school report grades a pupil: five subjects, a letter for each with the reason written beside it, and a GPA that averages them. Prices, plans and platforms are read from each maker’s own pages and dated, so you always know how fresh a figure is.

Every grade, review and ranking on ToolGPA is our own judgement. No company can pay for a grade or change one. Every tool on the site has a guide like this one, free to download and pass on. It all lives at toolgpa.com.

• 3,189

  tools graded

• 94

  categories

• 426

  price changes on record

• 579

  apps priced in 12 countries