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Need it fresh, filtered or via API? This demo shows a free snapshot, last updated 2026-10-08. Linkheft domain authority API (1,000 free domain lookups a day, $5 for 25,000 (no expiry, no subscription), or $19/month for 100,000) · Linkheft API $5 pack ($5 for 25,000 domain lookups, never expires) · Linkheft on Apify ($0.002 per domain ranked) · DomainDNA API $5 pack ($5 for 1,000 domain checks, never expires) · DomainDNA domain intel API (card checkout) (25 free domains a day, $5 for 1,000 (no expiry, no subscription), or $19/month for 5,000) · DomainDNA on Apify ($0.004 per domain analyzed) · email me when the data updates
Linkheft
Linkheft: Know how big any website is, in bulk
This page is a free sample. Run it on your own list: $0.002 per ranked domain, unranked domains free (1,000 domains = $2).
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Linkheft: free domain authority checker

A 0–100 authority score, the domain's rank among 133,241,980 domains in the Common Crawl web graph, a 4-month trend and referring subnets. Open data, no sign-up.

Looks the domain up live in the free Linkheft Open Domain Ranks dataset (one ~800 KB file).

Check thousands of domains at once, or from your AI agent (MCP) →
Linkheft on Apify: $0.002 per ranked domain, unranked domains free, CSV/JSON/Excel.

Biggest risers (4 months)

replicate.com470,225 → 3,541rising +99.2%
together.ai473,521 → 11,164rising +97.6%
intercom.com15,047 → 1,217rising +91.9%
bubble.io4,571 → 614rising +86.6%
squarespace.com293 → 55rising +81.2%
postgresql.org772 → 238rising +69.2%
calendly.com357 → 118rising +66.9%
square.com64,551 → 31,927rising +50.5%

Biggest fallers (4 months)

paddle.com3,574 → 386,456falling -99.1%
fly.io6,377 → 387,363falling -98.4%
duolingo.com318 → 2,006falling -84.1%
zoom.us67 → 193falling -65.3%
redis.io579 → 1,580falling -63.4%
coda.io1,936 → 5,238falling -63%
framer.com2,803 → 6,238falling -55.1%
zapier.com297 → 586falling -49.3%

Authority of 117 well-known SaaS, AI and developer sites

#DomainAuthorityTierWeb rank4-mo trendReferring subnets
1cloudflare.com87top 10011stable 0%44,397
2wordpress.org84top 10021stable -19%198,879
3github.com83top 10026stable +13.3%255,082
4spotify.com82top 10029rising +25.6%101,882
5wordpress.com81top 10032stable -15.6%131,347
6shopify.com80top 10039stable +11.4%66,893
7medium.com79top 10047stable -8.5%83,300
8reddit.com79top 10048stable -6.2%105,577
9dropbox.com79top 10049stable +16.9%66,499
10squarespace.com79top 10055rising +81.2%40,762
11paypal.com78top 10056stable -7.1%72,863
12stripe.com78top 10064stable -1.6%51,463
13openai.com76top 10084stable +14.3%53,508
14mailchimp.com76top 10093stable +15.5%36,782
15stackoverflow.com75top 10099rising +47.1%42,863
16substack.com75top 1,000115stable -11.3%46,064
17calendly.com74top 1,000118rising +66.9%52,216
18slack.com74top 1,000137stable -8%25,755
19claude.ai73top 1,000147rising +21.8%19,457
20box.com73top 1,000168stable -1.8%22,525
21wix.com72top 1,000189falling -22.2%37,188
22zoom.us72top 1,000193falling -65.3%75,513
23webflow.com72top 1,000206falling -20.4%11,745
24postgresql.org71top 1,000238rising +69.2%29,079
25perplexity.ai71top 1,000240falling -23.3%16,697
26canva.com71top 1,000243stable +4%46,311
27hubspot.com70top 1,000277stable -19.5%41,084
28zendesk.com69top 1,000303stable -8.9%39,195
29salesforce.com69top 1,000316stable -13.9%30,840
30elastic.co69top 1,000333falling -21%11,474
31gitlab.com69top 1,000347falling -26.2%47,922
32netflix.com68top 1,000392stable -3.3%34,924
33discord.com68top 1,000424stable -16.3%58,989
34figma.com68top 1,000433stable -15.9%17,241
35atlassian.com67top 1,000478stable -12.3%24,180
36trello.com67top 1,000493stable -15.2%21,192
37chatgpt.com66top 1,000537stable +10.6%40,081
38ycombinator.com66top 1,000576stable +0.7%19,837
39anthropic.com66top 1,000585stable -16.1%24,118
40zapier.com66top 1,000586falling -49.3%15,898
41semrush.com66top 1,000593rising +42.8%20,499
42bubble.io66top 1,000614rising +86.6%3,945
43huggingface.co66top 1,000627stable -15%23,820
44bitbucket.org65top 1,000643stable -10.3%17,363
45twilio.com65top 1,000686stable -9.5%10,727
46ahrefs.com65top 1,000717stable -5.7%17,227
47airtable.com65top 1,000743stable +6.7%14,501
48monday.com65top 1,000751rising +47.2%12,851
49dev.to64top 1,000797stable +14%14,796
50moz.com64top 1,000802stable -4.2%18,196
51notion.so64top 1,000810stable +4.6%18,243
52asana.com64top 1,000837stable -2.9%14,239
53grammarly.com64top 1,000875stable -3.2%14,176
54bigcommerce.com64top 1,000886stable -0.3%9,624
55miro.com64top 1,000903rising +34.8%11,807
56producthunt.com64top 1,000915stable -0.7%12,975
57netlify.com63top 1,000972rising +40.9%7,566
58woocommerce.com63top 1,000980stable -4.5%20,268
59segment.com63top 10,0001,094stable -16.1%3,611
60cursor.com63top 10,0001,109stable +6.4%9,605
61digitalocean.com62top 10,0001,149stable +12%19,819
62freshworks.com62top 10,0001,205rising +28.6%7,349
63intercom.com62top 10,0001,217rising +91.9%8,386
64loom.com62top 10,0001,274rising +21.4%9,585
65auth0.com62top 10,0001,284falling -22.7%8,315
66similarweb.com62top 10,0001,324stable +6.3%10,295
67gumroad.com61top 10,0001,350stable -13%16,617
68okta.com61top 10,0001,360stable -11.6%9,067
69ghost.org61top 10,0001,497stable -6.3%14,508
70sendgrid.com61top 10,0001,529stable -5.8%4,971
71redis.io61top 10,0001,580falling -63.4%17,185
72pipedrive.com60top 10,0001,791falling -37.1%6,013
73heroku.com60top 10,0001,813stable -15.8%6,432
74elevenlabs.io60top 10,0001,829stable -7.1%8,341
75midjourney.com60top 10,0001,839falling -20.3%11,385
76deepseek.com60top 10,0001,842stable -6.4%14,242
77clickup.com60top 10,0001,908stable -2.6%9,141
78vercel.com60top 10,0001,911stable -7.5%10,532
79mixpanel.com60top 10,0001,932falling -46.7%6,601
80datadoghq.com59top 10,0001,955stable -18%6,121
81duolingo.com59top 10,0002,006falling -84.1%13,831
82sentry.io59top 10,0002,019falling -24.9%7,020
831password.com59top 10,0002,020falling -35.9%7,634
84mistral.ai59top 10,0002,046stable -8.9%8,129
85docusign.com59top 10,0002,061stable 0%5,655
86runwayml.com59top 10,0002,079stable -17.7%7,438
87convertkit.com59top 10,0002,087stable -5.8%4,586
88mongodb.com59top 10,0002,109stable -11.6%11,679
89obsidian.md59top 10,0002,184stable +8.5%6,269
90databricks.com59top 10,0002,193stable +3.6%6,812
91beehiiv.com59top 10,0002,231stable -5.5%7,929
92n8n.io59top 10,0002,340stable -0.8%6,968
93amplitude.com58top 10,0002,406stable +5.2%3,522
94make.com58top 10,0002,428falling -32.9%6,210
95snowflake.com58top 10,0002,439rising +20.8%5,970
96replit.com57top 10,0002,846stable +13%8,218
97character.ai57top 10,0003,176stable -2.2%3,841
98cohere.com57top 10,0003,419stable -15.3%3,544
99retool.com56top 10,0003,526rising +26.3%2,596
100render.com56top 10,0003,528rising +43.9%2,572
101replicate.com56top 10,0003,541rising +99.2%3,337
102posthog.com56top 10,0004,089rising +25.5%3,617
103linear.app55top 10,0004,134rising +43.3%2,641
104coda.io54top 10,0005,238falling -63%3,127
105apify.com54top 10,0005,287rising +44.4%2,542
106framer.com53top 10,0006,238falling -55.1%4,882
107hashnode.com53top 10,0006,901rising +34.4%4,943
108lemonsqueezy.com53top 10,0007,014stable +2.4%3,032
109groq.com51top 10,0009,796stable -5%3,228
110railway.app51top 100,00010,406falling -38%3,561
111together.ai50top 100,00011,164rising +97.6%2,213
112jira.com47top 100,00022,175falling -23.3%1,151
113square.com45top 100,00031,927rising +50.5%791
114supabase.com31top 1,000,000385,919stable +17.9%5,387
115paddle.com31top 1,000,000386,456falling -99.1%4,697
116fly.io31top 1,000,000387,363falling -98.4%2,589
117resend.com31top 1,000,000387,891stable +17.6%3,763
Run it on your own list: try Linkheft on Apify (rank your own domain list by authority; first try costs cents, pay only for results).
More free from CyberMax: All free CyberMax demos & datasets · Keyfern: What People Search (Keyword Ideas) · DomainDNA: SaaS Email Security Report · Linkheft Open Domain Ranks (10.3M domains) (free dataset)