API Limits
URL Profiler integrates with a number of different APIs, some of which are free and some of which require a paid subscription.
With both, there are limits to the amount of data you can request, and the speed with which you can request it.
In this document we will outline these limits for each API we support.
Majestic
Authentication: Access Token
| Plan | Free | Lite | Pro | API |
| Monthly Credits | 15,000 approx (500 per day*) | 5,000 | 125,000 | 500,000 |
| Rate Limit | 300 per second | 300 per second | 300 per second | 300 per second |
*Every user gets 500 free daily checks of Majestic metrics (for more details about the free metrics, please read here).
Each Domain request = 1 credit
Each URL request = 1 credit
For details on how to set up your paid Majestic API access token, please read this step-by-step guide.
Note: In April 2017 Majestic changed some of their plan limits, prices and plan names. The legacy plans are still in place, so if you have one of these then the previous API allocations remain:
| Plan | Free | Silver | Gold | Platinum |
| Monthly Credits | 15,000 approx (500 per day*) | 25,000 | 125,000 | 500,000 |
| Rate Limit | 300 per second | 300 per second | 300 per second | 300 per second |
Mozscape
In addition to the free Majestic metrics, every user also gets 500 free daily checks of Moz metrics (for more details about the free metrics, please read here).
Authentication: Access ID & Secret Key
| Plan | Free/Pro | Entry Level | Low Volume | Mid Volume | Max Volume |
| Monthly Credits | 2,500 | 120,000 | 500,000 | 4,000,000 | 40,000,000 |
| Rate Limit | 1 per second | 200 per second | 200 per second | 200 per second | 200 per second |
Each Domain request = 1 credit
Each URL request = 1 credit
For details on how to set up a free or paid Moz API key, please read this step-by-step guide.
Ahrefs
Authentication: Access Token
| Plan | Free | Lite | Standard | Advanced | Agency |
| Monthly Credits | 0 | 50,000 | 300,000 | 1,00,000 | 5,000,000 |
| Rate Limit | N/A | 300 per second | 300 per second | 300 per second | 300 per second |
Each Domain request = 3 credits
Each URL request = 4 credits
For details on how to set up a paid Ahrefs API access token, please read this step-by-step guide.
SEMrush
Authentication: API Key
Early 2017, SEMrush changed all their API allocations, such that ‘Pro’ and ‘Guru’ subscriptions were no longer allocated any API credits – only the ‘Business’ subscription now offers API access (you can also sign up for a ‘Custom Plan‘ to include API access).
In terms of ongoing subscriptions, SEMrush claim that this is ‘case sensitive’, so if you previously had API access but no longer have it then I would suggest contacting SEMrush to clarify.
For details on how to set up a paid SEMrush API access token, please read this step-by-step guide.
Google PageSpeed
With a single Google PageSpeed API key, users are able to extract Desktop PageSpeed data, Mobile PageSpeed data, and Mobile-friendly data.
Authentication: API Key
| Plan | Free |
| Daily Credits | 25,000 |
| Rate Limit | Approx 60 per minute (PageSpeed) & approx 10 per minute (Mobile-friendly) |
Each URL (Desktop PageSpeed) request = 1 credit
Each URL (Mobile PageSpeed) request = 1 credit
Each URL (Mobile-friendly) request = 1 credit
For details on how to set up a free Google PageSpeed API key, please read this step-by-step guide.
Google Safe Browsing
Google’s Safe Browsing API allows users to perform malware checks against a list of domains – which compares them to an internal blacklist maintained by Google themselves.
Authentication: API Key
| Plan | Free |
| Daily Credits | 10,000 |
| Rate Limit | 200 per second |
Each Domain request = 1 credit
For details on how to set up a free Google Safe Browsing API key, please read this step-by-step guide.
My Addr
URL Profiler allows users to enter a My Addr API key, who provide very cheap and fast access to Alexa and Whois data.
Authentication: Username & Password
| Plan | Alexa | Whois |
| Cost | $1.00 per 100,000 URLs | $1.63 per 1000 URLs |
| Rate Limit | 115 per second | 2 per second |
For details on how to set up a My Addr API key, please read this step-by-step guide.
uClassify
Authentication: API Key
| Plan | Free | Indie | Professional |
| Daily Credits | 500 | 5,000 – 60,000 | 150,000 – 800,000 |
| Rate Limit | 25 requests per minute | 25 requests per minute | 25 requests per minute |
Each classifier (on URL) request = 1 credit
(e.g. If you want Topics & Sentiment of a single URL, that is 2 credits. If you just want Topics, that is 1 credit).
For details on how to set up a My Addr API key, please read this step-by-step guide.
For pricing details on the Indie/Professional accounts above, check out their pricing page.
Copyscape
Authentication: Username & Password
Rate Limit: 10 URLs per minute
Each URL request = $0.05
For details on how to set up a Copyscape API key, please read this step-by-step guide.
