200 Top SEO Ranking Factors October 2021

TOP SEO Factors for 2021-10 previous - today - next

Top SEO Factor data is updated daily for latest "month to date" measurements.

	Name	Correlation	#1 Max	Page 1 Avg	Usage %	Searches %
1	Number of Distinct Entities Used Diversity	-0.29	60	26	93 %	68 %
2	Number of Factors Used Diversity	-0.25	209	135	97 %	91 %
3	Variations in HTML Tags Relevancy	-0.24	999	154	91 %	95 %
4	Variations in Div Tags Relevancy	-0.23	694	112	90 %	95 %
5	Variations in Body Tags Relevancy	-0.23	873	131	82 %	95 %
6	Ahrefs Referring Class C Addresses Authority	-0.22	433	38	61 %	26 %
7	Ahrefs Referring IP Addresses Authority	-0.22	1275	50	62 %	26 %
8	Ahrefs Referring Domains Authority	-0.22	1174	50	61 %	26 %
9	Term Frequency Relevancy	-0.22	8	5	91 %	94 %
10	Variations in H1-H6 Tags Relevancy	-0.22	32	8	82 %	91 %
11	Ahrefs Text Backlinks Authority	-0.22	1191121	5745	61 %	25 %
12	Ahrefs Backlinks Authority	-0.22	1191125	5756	61 %	25 %
13	Ahrefs Referring Pages Authority	-0.22	1191123	5756	61 %	25 %
14	Ahrefs Rank Authority	-0.22	40	16	88 %	22 %
15	Variations in A Tags Relevancy	-0.22	142	25	83 %	94 %
16	Variations in H1, H2, and H3 Tags Relevancy	-0.22	27	6	81 %	91 %
17	Variations in P Tags Relevancy	-0.22	196	30	80 %	92 %
18	Entities in H2 Tags	-0.21	30	5	53 %	64 %
19	Ahrefs NoFollow Backlinks Authority	-0.21	12558	236	55 %	25 %
20	Variations in H1 and H2 Tags Relevancy	-0.21	17	4	78 %	90 %
21	Variations in Search Result Display URL Relevancy	-0.21	4	2	90 %	79 %
22	Variations in Search Result Link Text Relevancy	-0.21	4	2	90 %	79 %
23	LSI Words in Sentences Relevancy	-0.21	3221	425	76 %	95 %
24	Entities in Title Tag Relevancy	-0.2	7	3	74 %	63 %
25	Variations in Distinct A Tag HREF Attributes Relevancy	-0.2	255	29	76 %	77 %
26	Variations in LI Tags Relevancy	-0.2	169	18	73 %	95 %
27	Variations in Sentences Relevancy	-0.2	113	21	80 %	90 %
28	Variations in A Tag HREF Attributes Relevancy	-0.2	321	42	76 %	91 %
29	Entities in H3 Tags	-0.2	21	5	45 %	65 %
30	Variations in Search Result URL Path Relevancy	-0.2	5	2	66 %	69 %
31	Variations in the Title Tag Relevancy	-0.2	4	2	84 %	81 %
32	Variation Density in Top 30KB Relevancy	-0.19	11	3	78 %	71 %
33	Clean Keyword Density in the HTML Tag Relevancy	-0.19	12	4	87 %	77 %
34	DomDetailer Majestic Referring Subnets Authority	-0.19	64417	15660	93 %	26 %
35	Body Tag Size Kilobytes Size	-0.19	209	82	82 %	91 %
36	Ahrefs Dofollow Backlinks Authority	-0.19	1187882	5597	47 %	25 %
37	Number of HTML Tags Size	-0.19	3347	888	97 %	88 %
38	Variations in H2 Tags Relevancy	-0.19	15	3	50 %	88 %
39	DomDetailer Majestic IPs Authority	-0.19	216639	57179	94 %	27 %
40	Page Size Kilobytes Size	-0.19	297	146	96 %	87 %
41	Leading Variations in H1-H6 Tags Relevancy	-0.19	9	2	54 %	87 %
42	DomDetailer Moz PA Authority	-0.19	70	44	94 %	25 %
43	DomDetailer Majestic Referring Domains Authority	-0.19	1419745	354444	94 %	27 %
44	Keywords in pages top 10 most used phrases	-0.19	5	2	71 %	83 %
45	Variations in Script Tags Relevancy	-0.19	326	31	66 %	93 %
46	Keywords in pages top 5 most used phrases	-0.18	3	2	61 %	81 %
47	Variations in ALT Attributes Relevancy	-0.18	63	8	54 %	88 %
48	Leading Variations in H1, H2, and H3 Tags Relevancy	-0.18	7	2	51 %	88 %
49	Entities in Sentences Relevancy	-0.18	524	78	60 %	97 %
50	Clean Text Kilobytes Size	-0.18	40	11	92 %	90 %
51	Unabridged Word Count Size	-0.18	6786	1680	95 %	91 %
52	DomDetailer Majestic CF Authority	-0.18	61	38	93 %	26 %
53	DomDetailer Moz DA Authority	-0.18	85	46	94 %	24 %
54	Search Result Summary Length Size	-0.18	336	163	97 %	89 %
55	Word Count Size	-0.18	5107	1303	95 %	90 %
56	Exact Matches in Body Tag Relevancy	-0.18	151	11	38 %	90 %
57	Variations in Span Tags Relevancy	-0.18	49	9	61 %	92 %
58	Variations in Meta Description Relevancy	-0.18	5	2	63 %	85 %
59	Variations in Search Result URL Relevancy	-0.17	5	2	64 %	78 %
60	Variations in First 100 Words Relevancy	-0.17	19	7	75 %	76 %
61	DomDetailer Moz Rank Authority	-0.17	9	5	93 %	24 %
62	Variations in the Canonical URL Relevancy	-0.17	5	2	59 %	84 %
63	DomDetailer Majestic TF Authority	-0.17	62	30	85 %	25 %
64	DomDetailer Facebook Shares Authority	-0.17	9819568	-733660	88 %	26 %
65	Number of P Tags Size	-0.17	197	36	89 %	83 %
66	Ahrefs Has Text Backlinks Authority	-0.17	1	1	60 %	25 %
67	Variation Count in Top 30KB Relevancy	-0.17	199	42	85 %	65 %
68	Number of HTTPS Links Authority	-0.17	582	146	92 %	88 %
69	LSI Words in Title Tag Relevancy	-0.17	15	5	72 %	90 %
70	Keywords in pages top 3 most used phrases	-0.17	2	1	51 %	80 %
71	Number of Sentences Size	-0.17	242	50	92 %	84 %
72	Ahrefs Has NoFollow Backlinks Authority	-0.17	1	1	54 %	25 %
73	Ahrefs Has Backlinks Authority	-0.17	1	1	61 %	25 %
74	Ahrefs Has Dofollow Backlinks Authority	-0.17	1	1	47 %	24 %
75	Variations in Absolute URLs Relevancy	-0.17	333	40	68 %	87 %
76	Exact Matches in the HTML Tag Relevancy	-0.17	181	8	39 %	86 %
77	Entities in Meta Description Tag Relevancy	-0.17	7	3	59 %	59 %
78	Number of Links Authority	-0.17	591	153	94 %	86 %
79	Variations in H1 Tags Relevancy	-0.17	3	2	69 %	79 %
80	Entities in the HTML Tag Relevancy	-0.17	3883	266	62 %	97 %
81	Number of Internal Links Authority	-0.17	583	138	93 %	87 %
82	Number of DoFollow Links Authority	-0.17	567	147	93 %	86 %
83	Variations in Nav Tags Relevancy	-0.17	181	18	49 %	88 %
84	Entities in H4 Tags	-0.16	9	3	25 %	58 %
85	Ahrefs Domain Rating Authority	-0.16	79	37	82 %	22 %
86	Number of Heading Tags Size	-0.16	50	20	92 %	84 %
87	TF/IDF Relevancy	-0.16	1	1	72 %	81 %
88	DomDetailer Moz Links Authority	-0.16	77772683	16245760	94 %	26 %
89	Entities in H1 Tags	-0.16	7	2	61 %	56 %
90	Leading Variations in Title Tag Relevancy	-0.16	1	1	39 %	78 %
91	Variations in Search Result Document File Name Relevancy	-0.16	5	2	63 %	66 %
92	Variations in H3 Tags Relevancy	-0.16	13	3	37 %	89 %
93	DomDetailer Majestic Links Authority	-0.16	78144532	4975553	93 %	26 %
94	Variations in OpenGraph Description Relevancy	-0.16	5	2	51 %	80 %
95	Number of Images Size	-0.16	81	28	91 %	85 %
96	LSI Words in H2 Tags Relevancy	-0.16	79	11	55 %	91 %
97	Variations in Search Result Summary Relevancy	-0.16	7	3	94 %	75 %
98	Exact Matches in H1-H6 Tags Relevancy	-0.16	10	1	29 %	86 %
99	Number of Images with ALT Text Size	-0.16	69	19	84 %	86 %
100	Leading Variations in H1 Tags Relevancy	-0.16	1	1	34 %	78 %
101	Variations in OpenGraph Title Relevancy	-0.15	4	2	59 %	78 %
102	Number of Questions Size	-0.15	28	5	61 %	79 %
103	Number of Questions In Headings Size	-0.15	6	2	35 %	34 %
104	Exact Matches in Top 30KB Relevancy	-0.15	45	3	29 %	61 %
105	Variations in Main Tags Relevancy	-0.15	286	43	33 %	86 %
106	Has Entities in H2 Tags Relevancy	-0.15	1	1	56 %	59 %
107	Number of H2 Tags Size	-0.15	18	6	75 %	82 %
108	Number of Absolute URLs Authority	-0.15	372	129	94 %	83 %
109	Ahrefs Word Count Size	-0.15	4424	1414	69 %	13 %
110	Ahrefs Internal Links Authority	-0.15	353	90	68 %	26 %
111	Variations Making Whole Span Tags Relevancy	-0.15	8	1	22 %	85 %
112	Ahrefs Image Backlinks	-0.15	10404	240	20 %	22 %
113	Variations making whole A Tags Relevancy	-0.15	5	1	34 %	83 %
114	Inline JavaScript Kilobytes Size	-0.15	112	33	90 %	81 %
115	Variations in the last 100 words Relevancy	-0.15	13	4	61 %	76 %
116	Ahrefs Has Image Backlinks Authority	-0.15	1	1	20 %	21 %
117	Number Of JSON-LD Types Relevancy	-0.15	31	8	52 %	73 %
118	Variations in Footer Tags Relevancy	-0.15	119	6	36 %	82 %
119	DomDetailer Majestic GOV Backlinks Authority	-0.15	16846899	3565450	46 %	25 %
120	Variations in TITLE Attributes Relevancy	-0.14	57	7	39 %	87 %
121	Leading Variations in H2 Tags Relevancy	-0.14	7	1	23 %	84 %
122	Exact Matches in Title Tag Relevancy	-0.14	2	1	26 %	77 %
123	Number of H3 Tags Size	-0.14	29	7	67 %	84 %
124	Title Tag Has Entities Relevancy	-0.14	1	1	75 %	53 %
125	Variations Making Whole LI Tags Relevancy	-0.14	3	1	27 %	84 %
126	LSI Words in Meta Description Tag Relevancy	-0.14	28	7	56 %	90 %
127	Exact Matches in A Tags Relevancy	-0.14	34	3	24 %	87 %
128	Variations making whole H1-H6 Tags Relevancy	-0.14	4	1	17 %	77 %
129	Has Entities in H3 Tags Relevancy	-0.14	1	1	47 %	57 %
130	Variations in H4-H6 Tags Relevancy	-0.14	6	2	22 %	80 %
131	Variations in Strong Tags Relevancy	-0.14	17	3	32 %	79 %
132	Variations in Article Tags Relevancy	-0.14	149	16	31 %	74 %
133	Variations in Section Tags Relevancy	-0.14	95	15	38 %	83 %
134	Number of External Links Authority	-0.14	57	16	87 %	80 %
135	Ahrefs External Links Authority	-0.14	106	17	64 %	25 %
136	Headings Has Question Other	-0.14	1	1	33 %	72 %
137	LSI Words in H3 Tags Relevancy	-0.14	73	11	47 %	91 %
138	Variations in H4 Tags Relevancy	-0.14	5	1	17 %	80 %
139	Has Entities in H1 Tags Relevancy	-0.14	1	1	64 %	52 %
140	LSI Words in H1 Tags Relevancy	-0.14	17	4	62 %	86 %
141	Keywords in pages most used phrase	-0.14	1	1	26 %	72 %
142	Ahrefs Linked Root Domains Authority	-0.13	16	7	68 %	26 %
143	Variations making whole H1, H2, and H3 Tags Relevancy	-0.13	1	1	16 %	77 %
144	Meta Description Length Size	-0.13	394	129	71 %	73 %
145	Ahrefs Pages Size	-0.13	6	2	71 %	24 %
146	Number of Questions In H2 Tags Size	-0.13	3	1	19 %	75 %
147	Has FavIcon Technology	-0.13	1	1	79 %	69 %
148	Exact Matches in Sentences Relevancy	-0.13	21	2	24 %	87 %
149	Inline CSS Kilobytes Size	-0.13	74	26	59 %	78 %
150	Head Size Kilobytes Size	-0.13	130	40	90 %	78 %
151	Number of DoFollow External Links Authority	-0.13	50	14	84 %	77 %
152	DomDetailer Facebook Comments Authority	-0.13	312	37	12 %	21 %
153	Word Count in Meta Description Size	-0.13	70	21	71 %	74 %
154	Leading Variations in H3 Tags Relevancy	-0.13	3	1	16 %	81 %
155	Load Time Milliseconds Performance	-0.13	28891	2345	97 %	73 %
156	Search Result Number of Dirs in Path Other	-0.13	4	2	83 %	63 %
157	Has Entities in H4 Tags Relevancy	-0.13	1	1	27 %	50 %
158	Search Result Uses HTTPS Other	-0.13	1	1	91 %	68 %
159	Variations in Search Result URL Domain Name Relevancy	-0.13	1	1	5 %	46 %
160	Number of Questions In H3 Tags Size	-0.13	4	1	14 %	75 %
161	Variations in Class Attributes Relevancy	-0.13	147	6	24 %	85 %
162	Number of Nofollow Links Authority	-0.13	46	7	36 %	81 %
163	Exact Matches in H1 Tags Relevancy	-0.13	2	1	20 %	76 %
164	Variations in ID Attributes Relevancy	-0.12	16	2	12 %	83 %
165	Meta Description Tag Has Entities Relevancy	-0.12	1	1	59 %	52 %
166	Number of US Phone Numbers Trust	-0.12	116	7	37 %	77 %
167	Has Privacy Policy Trust	-0.12	1	1	54 %	76 %
168	Has JSON-LD Answer	-0.12	1	1	4 %	56 %
169	Has JSON-LD Question	-0.12	1	1	4 %	57 %
170	Number of Social Accounts Authority	-0.12	5	2	48 %	75 %
171	Percentage of DoFollow Internal Links Authority	-0.12	95	80	92 %	70 %
172	Ahrefs Images Relevancy	-0.12	70	20	67 %	13 %
173	Ahrefs Has Internal Links Authority	-0.12	1	1	66 %	22 %
174	Ahrefs Has External Links Authority	-0.12	1	1	62 %	22 %
175	Number of Social Pages Authority	-0.12	14	3	65 %	75 %
176	Number of Facebook Pages Authority	-0.12	8	3	64 %	73 %
177	Number of JavaScript Includes Technology	-0.12	31	15	89 %	69 %
178	Has OpenGraph Image Relevancy	-0.12	1	1	54 %	62 %
179	Number of H4 Tags Size	-0.12	22	4	43 %	79 %
180	Ahrefs EDU Backlinks Authority	-0.12	47566	312	8 %	16 %
181	Number Of Claimed Brands Other	-0.12	6	1	18 %	64 %
182	Ahrefs Has Linked Root Domains Authority	-0.12	1	1	65 %	22 %
183	Variations in I Tags Relevancy	-0.12	13	2	22 %	78 %
184	Variations in Button Tags Relevancy	-0.12	15	1	6 %	79 %
185	Has Contact Page Trust	-0.12	1	1	61 %	61 %
186	Leading Variations in H4-H6 Tags Relevancy	-0.12	4	1	10 %	74 %
187	Number of YouTube Accounts Technology	-0.12	2	1	11 %	70 %
188	Number of Forms Technology	-0.12	10	3	70 %	73 %
189	Has Meta Description Relevancy	-0.12	1	1	72 %	67 %
190	Has Canonical URL Authority	-0.12	1	1	75 %	72 %
191	Number of NoFollow External Links Authority	-0.12	23	3	24 %	81 %
192	Ahrefs Redirects Authority	-0.12	463	9	10 %	21 %
193	Number of Instagram Pages Authority	-0.12	14	2	41 %	77 %
194	Number of HREF Lang Tags Size	-0.12	12	2	9 %	76 %
195	Leading Variations in H4 Tags Relevancy	-0.12	4	1	7 %	73 %
196	Variations in Value Attributes Relevancy	-0.12	34	2	14 %	70 %
197	Has JSON-LD AggregateRating	-0.12	1	1	5 %	60 %
198	Search Result Publish Date	-0.12	2004926780	1952554106	97 %	36 %
199	Has Schema Markup Relevancy	-0.12	1	1	64 %	72 %
200	Ahrefs Page Size Size	-0.11	61325	29337	71 %	12 %

Measures 141934 SEO Factors

140212 Built-In SEO Factors

131201 On-page SEO Factors

9011 Google Maps SEO Factors for Local SEO

1722 SEO Factors from APIs

147 API SEO Factors for off-page SEO like backlinks and referring domains.

1575 Technology Stack SEO Factors

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TOP SEO Factors for 2021-10 previous - today - next